Re: Need Pulley for Craftsman Speed-Reducing Attachment
Whenever I began learning to use tools of any sort it began with how to set up the tool so work could get done safely, efficiently, and with quality. Obtaining the proper cutting tool with which to do the work was fundamental. Much of the time one would have to grind it from a blank of tool steel. Sure, we'd see a demonstration of a proper set-up running/cutting as a way to build interest.
Guenther is of the old school. God bless him! Most folks now want to just buy the exact right tool from some catalog. You can do that much of the time. IF you have the time to search and money to buy. Tool bit blanks are pretty inexpensive. One will learn much and gain much satisfaction by learning to grind their own tools. AND will often have their tool much sooner (it really doesn't take a lot of time) AND often for much less cost.
We are into this hobby for DIY fun/satisfaction, right?
On Thu, Apr 16, 2020, 11:44 PM Bill in OKC too via <wmrmeyers= [email protected]> wrote: Guenther, most of us here are amateurs. Not professional machinists. That is quite enough. If you do not have something constructive to say, do not say anything at all.
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 16, 2020, 11:26:20 PM CDT, Guenther Paul < paulguenter@...> wrote:
Any decent machinist should know how to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT, mike allen < animal@...> wrote:
??? ??? any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks wrote:
John, Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as well, some are near useless out of the box. Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John Wilshusen via " <wilshusen@...> wrote:
Bruce, One additional thing to add to your literature pile.? I read and applied what i learned in this write-up when I was making the motor pulley for my lathe.? You might find it useful as well.
?
?
Good luck! John ?
So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote: Bruce, Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself! They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum. McMaster Carr can surprise you sometimes. Alro sucks price wise! Have fun,
Dave On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all! ? Glenn N 每 Yes, Robert Downs put this file in the files section. ? Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum? ? Kay 每 Thanks for the Speedy Metals link. ? Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily. ? Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices. ? Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful. ? So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
? ?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Guenther＊s reply may have seemed harsh, but I don＊t think he was far off target.
I＊d have instead said that any decent machinist - or anyone with experience running one of these light lathes - will already know how to grind the tools to cut the pulley grooves. Because the key word here is tools - not tool.
Trying to turn grooves for normal sized V belts on lathes like these doesn＊t work very well with form tools. ?Instead, you need several different tools - the ones you use every day. ?A parting tool to cut the depth of the groove, and to cut the bottom to width. ?A facing tool to cut the left side of the groove, with the compound feeding at the proper angle. ?And then the mirror image of that facing tool to cut the right side of the groove, with the compound set the other way. ?No pics should be needed.
Not only would a form tool make no sense because of the likelihood of chatter, but you＊d need different form tools for each pulley diameter. ?The angles are different for each diameter.
toggle quoted message
Show quoted text
On Apr 17, 2020, at 12:44 AM, Bill in OKC too via groups.io <wmrmeyers@...> wrote:
? Guenther, most of us here are amateurs. Not professional machinists. That is quite enough. If you do not have something constructive to say, do not say anything at all.
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 16, 2020, 11:26:20 PM CDT, Guenther Paul <paulguenter@...> wrote:
Any decent machinist should know how to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT, mike allen <animal@...> wrote:
??? ??? any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks wrote:
John, Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as well, some are near useless out of the box. Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John Wilshusen via groups.io" <wilshusen@...> wrote:
Bruce, One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well.
?
?
Good luck! John ?
So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote: Bruce, Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself! They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum. McMaster Carr can surprise you sometimes. Alro sucks price wise! Have fun,
Dave On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all! ? Glenn N 每 Yes, Robert Downs put this file in the files section. ? Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum? ? Kay 每 Thanks for the Speedy Metals link. ? Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily. ? Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices. ? Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful. ? So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
? ?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Guenther, most of us here are amateurs. Not professional machinists. That is quite enough. If you do not have something constructive to say, do not say anything at all.
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)
On Thursday, April 16, 2020, 11:26:20 PM CDT, Guenther Paul <paulguenter@...> wrote:
Any decent machinist should know how to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT, mike allen <animal@...> wrote:
??? ??? any one have any pic's of the tool profile they use for makin pulleys ? ??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks wrote:
John, Nice article! Procedure look good, I'd use different tooling but same idea. Not going to make one for this episode but I have made a pulley or 2 in the past. Trued up a couple die cast ones as well, some are near useless out of the box. Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John Wilshusen via groups.io" <wilshusen@...> wrote:
Bruce, One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well.
?
?
Good luck! John ?
So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote: Bruce, Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice. Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself! They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum. McMaster Carr can surprise you sometimes. Alro sucks price wise! Have fun,
Dave On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all! ? Glenn N 每 Yes, Robert Downs put this file in the files section. ? Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum? ? Kay 每 Thanks for the Speedy Metals link. ? Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily. ? Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices. ? Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful. ? So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
? ?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Any decent machinist should know how to grind cutting tool for his machining job
GP
On Thursday, April 16, 2020, 7:33:53 PM EDT, mike allen <animal@...> wrote:
??? ??? any one have any pic's of the tool profile they use for
makin pulleys ?
??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks
wrote:
John,
Nice article! Procedure look good, I'd use
different tooling but same idea.
Not going to make one for this episode but I have
made a pulley or 2 in the past.
Trued up a couple die cast ones as well, some are
near useless out of the box.
Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John
Wilshusen via groups.io" <wilshusen@...>
wrote:
Bruce,
One additional thing to add to your literature pile. ?I
read and applied what i learned in this write-up when I was
making the motor pulley for my lathe. ?You might find it
useful as well.
?
?
Good luck!
John
?
So you're planning to create a pulley,
eh? I'd really like to see a video of that!?
Most of us have to settle for
fabricating things.
On Wed,
Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...>
wrote:
Bruce,
Yeah, 7075 is expensive but 6061 would work
better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money
regardless of how you do it unless you pour it
yourself!
They don't carry round 7075 but you might get
a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
On April 15, 2020 at 7:46
AM exerpd+groupsio@...
wrote:
Thanks all!
?
Glenn N 每 Yes, Robert
Downs put this file in the files section.
?
Brad 每 How can 3-D
printing & casting & machining be less
expensive than the piece of aluminum?
?
Kay 每 Thanks for the
Speedy Metals link.
?
Robert Downs / Guenther
Paul 每 Thanks for the suggestions on how to
machine it more easily.
?
Kay Davis / Dave
Matticks 每 7075 seems much more expensive than
the other aluminum choices.
?
Craig Treleaven 每 Thanks
for filling me in on the edits I make causing
problems.? I get the update only daily, so do
not have this problem.? The only times I do this
instead of a separate post, is when I have
grammar or formatting errors.? It seems like
every group has different formatting defaults.?
And in this group you cannot see what the final
formatting is going to look like until AFTER you
post.? Will try to be more careful.
?
So everyone understands,
it may be a while before I create this aluminum
pulley.? I will update everyone when I complete
this or have questions.? Prior to November, I
did not even own a lathe, so I am new to this
& still learning.? What might be easy to
some, is new to me.? I am going to a) wait a
little while to see if I can locate an OEM 60-29
pulley.? b) If not, then I will do the aluminum
pulley machining.? As was discussed early in
this thread, I do not use the drill press
constantly & it is working as is.? So this
is not an immediate necessity.
--
Bruce Varner
?
?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Hi Bruce,
If you have a choice between 6061 and 7075, the less expensive option will be fine for what you're using it for. You're not going to be loading it very much - 7075 is more prone to fatigue cracking in some applications due to its grain. You won't be operating anywhere near the yield strength so either material would work.
For a really cheap cast iron blank, when the thrift shops open up go look for old weight lifting weights. Their machining quality is all over the map, but for a few bucks each you can afford to try different ones. I used one to make a chuck adapter plate for my Hardinge lathe and it worked well. After cutting below the skin the one I used machined nicely. In my case I needed a large hole in it, and it may take a while to locate one with a small diameter hole. Or you have a lathe, make a bushing.
Enjoy your project!
Dave F. in Washington State
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
??? ??? any one have any pic's of the tool profile they use for
makin pulleys ?
??? ??? animal
On 4/16/2020 2:46 PM, Dave Matticks
wrote:
toggle quoted message
Show quoted text
John,
Nice article! Procedure look good, I'd use
different tooling but same idea.
Not going to make one for this episode but I have
made a pulley or 2 in the past.
Trued up a couple die cast ones as well, some are
near useless out of the box.
Not only made in USA but 2 miles from my house!
Dave
On April 16, 2020 at 1:02 PM "John
Wilshusen via groups.io" <wilshusen@...>
wrote:
Bruce,
One additional thing to add to your literature pile. ?I
read and applied what i learned in this write-up when I was
making the motor pulley for my lathe. ?You might find it
useful as well.
?
?
Good luck!
John
?
So you're planning to create a pulley,
eh? I'd really like to see a video of that!?
Most of us have to settle for
fabricating things.
On Wed,
Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...>
wrote:
Bruce,
Yeah, 7075 is expensive but 6061 would work
better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money
regardless of how you do it unless you pour it
yourself!
They don't carry round 7075 but you might get
a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
On April 15, 2020 at 7:46
AM exerpd+groupsio@...
wrote:
Thanks all!
?
Glenn N 每 Yes, Robert
Downs put this file in the files section.
?
Brad 每 How can 3-D
printing & casting & machining be less
expensive than the piece of aluminum?
?
Kay 每 Thanks for the
Speedy Metals link.
?
Robert Downs / Guenther
Paul 每 Thanks for the suggestions on how to
machine it more easily.
?
Kay Davis / Dave
Matticks 每 7075 seems much more expensive than
the other aluminum choices.
?
Craig Treleaven 每 Thanks
for filling me in on the edits I make causing
problems.? I get the update only daily, so do
not have this problem.? The only times I do this
instead of a separate post, is when I have
grammar or formatting errors.? It seems like
every group has different formatting defaults.?
And in this group you cannot see what the final
formatting is going to look like until AFTER you
post.? Will try to be more careful.
?
So everyone understands,
it may be a while before I create this aluminum
pulley.? I will update everyone when I complete
this or have questions.? Prior to November, I
did not even own a lathe, so I am new to this
& still learning.? What might be easy to
some, is new to me.? I am going to a) wait a
little while to see if I can locate an OEM 60-29
pulley.? b) If not, then I will do the aluminum
pulley machining.? As was discussed early in
this thread, I do not use the drill press
constantly & it is working as is.? So this
is not an immediate necessity.
--
Bruce Varner
?
?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
John,
Nice article! Procedure look good, I'd use different tooling but same idea.
Not going to make one for this episode but I have made a pulley or 2 in the past.
Trued up a couple die cast ones as well, some are near useless out of the box.
Not only made in USA but 2 miles from my house!
Dave
toggle quoted message
Show quoted text
On April 16, 2020 at 1:02 PM "John Wilshusen via groups.io" <wilshusen@...> wrote:
Bruce,
One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well.
?
?
Good luck!
John
?
On Apr 16, 2020, at 9:34 AM, Jim Irwin <jimairwin@...> wrote:
So you're planning to create a pulley, eh? I'd really like to see a video of that!?
Most of us have to settle for fabricating things.
On Wed, Apr 15, 2020, 7:00 PM Dave Matticks <
dpm100@...> wrote:
Bruce,
Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself!
They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
On April 15, 2020 at 7:46 AM
exerpd+groupsio@... wrote:
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
?
?
?
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Bruce, One additional thing to add to your literature pile. ?I read and applied what i learned in this write-up when I was making the motor pulley for my lathe. ?You might find it useful as well.
Good luck!
toggle quoted message
Show quoted text
On Apr 16, 2020, at 9:34 AM, Jim Irwin <jimairwin@...> wrote:
? So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things. On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote:
Bruce,
Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself!
They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
?
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Another place you can try is Metal Supermarkets; they have quite a few stores around the country, and also ship for online orders. ?Website: ?
They will cut to length for you, generally I have found their prices to be competitive.
toggle quoted message
Show quoted text
On Apr 16, 2020, at 9:38 AM, Steven H via groups.io <stevesmachining@...> wrote:
?SpeedyMetals.com sells Aluminum round in 2011, 2024, 6061, and 7075 grades.?
7075 round aluminum can be had up to 12§ diameter from Speedy.
Speedy also sells Class 40 gray cast iron up to 12§ diameter.
Another online source to check would be OnlineMetals.com
One disadvantage to purchasing online is the shipping cost. Speedy ships via UPS and they do a very good job of packaging. They use a lot of striated packaging tape. You can get the shipping cost right on their site.
Steve Haskell
Troy, MI
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
SpeedyMetals.com sells Aluminum round in 2011, 2024, 6061, and 7075 grades.?
7075 round aluminum can be had up to 12§ diameter from Speedy.
Speedy also sells Class 40 gray cast iron up to 12§ diameter.
Another online source to check would be OnlineMetals.com
One disadvantage to purchasing online is the shipping cost. Speedy ships via UPS and they do a very good job of packaging. They use a lot of striated packaging tape. You can get the shipping cost right on their site.
Steve Haskell
Troy, MI
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
So you're planning to create a pulley, eh? I'd really like to see a video of that!? Most of us have to settle for fabricating things.
On Wed, Apr 15, 2020, 7:00 PM Dave Matticks < dpm100@...> wrote:
Bruce,
Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself!
They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity. --
Bruce Varner
?
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
Bruce,
Yeah, 7075 is expensive but 6061 would work better than fine. 7075 just cuts so nice.
Going cast iron is not going to save any money regardless of how you do it unless you pour it yourself!
They don't carry round 7075 but you might get a good price on 6061 from Clinton Aluminum.
McMaster Carr can surprise you sometimes.
Alro sucks price wise!
Have fun,
Dave
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On April 15, 2020 at 7:46 AM exerpd+groupsio@... wrote:
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is. ?So this is not an immediate necessity. --
Bruce Varner
?
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Re: Need Pulley for Craftsman Speed-Reducing Attachment
"I ?see no reason to 3-D print the pattern.? Turn one out of wood, or glue up some sawn plywood disks"I make a lot of things in wood first, it helps me as a practice run.? Sometimes I don't see the problems until I get into the turning.? Order of operations, how to hold the piece, etc.? Wood is cheaper to learn on than aluminum or cast iron.? Just clean up the machine as soon as you're done to avoid damp sawdust on your pretty lathe.
Making that large pulley from a casting is definitely the way to go.? Making it from bar stock, there would be - as you say - a lot of metal to whittle away.
Cast iron versus cast aluminum - that＊s up to you.? I made a similar set of four-step pulleys about 30 years ago for a Delta wood/metal cutting bandsaw.? Both were from aluminum - the large driven pulley from a casting, the smaller motor pulley from bar stock.? Both have held up perfectly over the years.? I used aluminum because I found someone who had cast up some pulley blanks in a backyard foundry and was offering them very reasonably.? For a blank in cast iron, you may have to go to a commercial foundry, and may have to pay a lot more.
If you go with cast iron, make sure that the blank is well oversize so that you can get beneath the hardened skin.? With cast aluminum there may be some sand in the skin, but it will not be as bad.? Cast iron will make a much bigger mess in turning.? Cast aluminum will be easier to machine.
I see no reason to 3-D print the pattern.? Turn one out of wood, or glue up some sawn plywood disks.? Don＊t bother making the underside hollow like the original pulley unless you need the hollow for clearance, as the pattern and the moulding process will be more complicated.? And I＊d leave the pulley with a flat back, as machining out the hollow will only increase the likelihood of a balancing problem. ? Bruce,
Not necessarily cheaper, but I want it cast iron. Plus, it will be way less work to turn down a cast blank than a solid chunk of bar. I probably failed to mention that it's a 4 step pulley, and ranges from about 5" on the largest diameter to about 1-1/2" on the smaller diameter. That's a lot of cast iron to whittle out of a solid bar. And Durabar isn't that cheap, either, from what I remember.?
Brad Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity.
--
Bruce Varner
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Making that large pulley from a casting is definitely the way to go. ?Making it from bar stock, there would be - as you say - a lot of metal to whittle away.
Cast iron versus cast aluminum - that＊s up to you. ?I made a similar set of four-step pulleys about 30 years ago for a Delta wood/metal cutting bandsaw. ?Both were from aluminum - the large driven pulley from a casting, the smaller motor pulley from bar stock. ?Both have held up perfectly over the years. ?I used aluminum because I found someone who had cast up some pulley blanks in a backyard foundry and was offering them very reasonably. ?For a blank in cast iron, you may have to go to a commercial foundry, and may have to pay a lot more.
If you go with cast iron, make sure that the blank is well oversize so that you can get beneath the hardened skin. ?With cast aluminum there may be some sand in the skin, but it will not be as bad. ?Cast iron will make a much bigger mess in turning. ?Cast aluminum will be easier to machine.
I see no reason to 3-D print the pattern. ?Turn one out of wood, or glue up some sawn plywood disks. ?Don＊t bother making the underside hollow like the original pulley unless you need the hollow for clearance, as the pattern and the moulding process will be more complicated. ?And I＊d leave the pulley with a flat back, as machining out the hollow will only increase the likelihood of a balancing problem.
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On Apr 15, 2020, at 10:05 AM, Brad <nailm1405@...> wrote:
? Bruce,
Not necessarily cheaper, but I want it cast iron. Plus, it will be way less work to turn down a cast blank than a solid chunk of bar. I probably failed to mention that it's a 4 step pulley, and ranges from about 5" on the largest diameter to about 1-1/2" on the smaller diameter. That's a lot of cast iron to whittle out of a solid bar. And Durabar isn't that cheap, either, from what I remember.?
Brad Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity.
--
Bruce Varner
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
John I guess it could be somewhat complicated for a person that never used metal machines before. There are many members here that have the experience and are willing to help.? If? a member needs help i am always willing to help or go as far to make the part
GP
On Wednesday, April 15, 2020, 9:43:08 AM EDT, John Wilshusen via groups.io <wilshusen@...> wrote:
Bruce, Just offering a word of encouragement 〞 the very first real thing I machined on my 618 lathe was a 2-step motor pulley. When I bought the lathe, it had all the other parts including the two-step countershaft drive pulley, but the motor only had some Tractor Supply Company single groove version. After a bit of research and advice from another owner, I was able to sketch up the required dimensions and turned one from a 6061 round stock. It took way longer than it probably should have to finish, but it fit up nicely and works like a champ. Moral of the story, it looks a lot more complicated than it really is; if you have a way to use the lathe as is, dive in and do it. You will learn a bunch in the process, and there is a great deal of satisfaction to be had the first time you make something else using the parts you made yourself.?
On Apr 15, 2020, at 8:47 AM, exerpd+groupsio@... wrote:
? Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is. ?So this is not an immediate necessity.
-- Bruce Varner
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Bruce,
Not necessarily cheaper, but I want it cast iron. Plus, it will be way less work to turn down a cast blank than a solid chunk of bar. I probably failed to mention that it's a 4 step pulley, and ranges from about 5" on the largest diameter to about 1-1/2" on the smaller diameter. That's a lot of cast iron to whittle out of a solid bar. And Durabar isn't that cheap, either, from what I remember.?
Brad
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is.? So this is not an immediate necessity.
--
Bruce Varner
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Bruce, Just offering a word of encouragement 〞 the very first real thing I machined on my 618 lathe was a 2-step motor pulley. When I bought the lathe, it had all the other parts including the two-step countershaft drive pulley, but the motor only had some Tractor Supply Company single groove version. After a bit of research and advice from another owner, I was able to sketch up the required dimensions and turned one from a 6061 round stock. It took way longer than it probably should have to finish, but it fit up nicely and works like a champ. Moral of the story, it looks a lot more complicated than it really is; if you have a way to use the lathe as is, dive in and do it. You will learn a bunch in the process, and there is a great deal of satisfaction to be had the first time you make something else using the parts you made yourself.?
toggle quoted message
Show quoted text
On Apr 15, 2020, at 8:47 AM, exerpd+groupsio@... wrote:
? Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is. ?So this is not an immediate necessity.
-- Bruce Varner
|
Re: Need Pulley for Craftsman Speed-Reducing Attachment
Thanks all!
?
Glenn N 每 Yes, Robert Downs put this file in the files section.
?
Brad 每 How can 3-D printing & casting & machining be less expensive than the piece of aluminum?
?
Kay 每 Thanks for the Speedy Metals link.
?
Robert Downs / Guenther Paul 每 Thanks for the suggestions on how to machine it more easily.
?
Kay Davis / Dave Matticks 每 7075 seems much more expensive than the other aluminum choices.
?
Craig Treleaven 每 Thanks for filling me in on the edits I make causing problems.? I get the update only daily, so do not have this problem.? The only times I do this instead of a separate post, is when I have grammar or formatting errors.? It seems like every group has different formatting defaults.? And in this group you cannot see what the final formatting is going to look like until AFTER you post.? Will try to be more careful.
?
So everyone understands, it may be a while before I create this aluminum pulley.? I will update everyone when I complete this or have questions.? Prior to November, I did not even own a lathe, so I am new to this & still learning.? What might be easy to some, is new to me.? I am going to a) wait a little while to see if I can locate an OEM 60-29 pulley.? b) If not, then I will do the aluminum pulley machining.? As was discussed early in this thread, I do not use the drill press constantly & it is working as is. ?So this is not an immediate necessity.
-- Bruce Varner
|
Re: Belt Tensioning (was [atlas-craftsman IO] Finish Cut - Finished
Also, the 101.28990 will have the slip clutch on the lead screw, and the cross-feed engages by pushing down on a lever instead of by pulling out on the constantly rotating knob like everything else back to about 1938 had. ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Brad
Sent: Tuesday, April 14, 2020 08:59
To: [email protected]
Subject: Re: Belt Tensioning (was [atlas-craftsman IO] Finish Cut - Finished? Thanks Robert. Definitely the 101.28990 then. I never really had a need to figure that out before. Thanks for the tip on Clausing, I may give it a try. As for the washer that is there now, I'm not convinced it's a fiber washer. It is not unlikely that it was replaced by a previous owner. It is extremely thin, paper thin, and almost sharp. I din't?measure it, but I guess maybe .015 or so. Almost like a spring washer without the spring, but thinner.?
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Re: Belt Tensioning (was [atlas-craftsman IO] Finish Cut - Finished
OK.? If it bends and doesn＊t break, then it is most likely metal and therefore not original.? And if it is that thin, it should have been replaced some time ago whatever it is.? J ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Brad
Sent: Tuesday, April 14, 2020 08:59
To: [email protected]
Subject: Re: Belt Tensioning (was [atlas-craftsman IO] Finish Cut - Finished? Thanks Robert. Definitely the 101.28990 then. I never really had a need to figure that out before. Thanks for the tip on Clausing, I may give it a try. As for the washer that is there now, I'm not convinced it's a fiber washer. It is not unlikely that it was replaced by a previous owner. It is extremely thin, paper thin, and almost sharp. I din't?measure it, but I guess maybe .015 or so. Almost like a spring washer without the spring, but thinner.? ?
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Bill in OKC too
John Wilshusen
Steven H