Keyboard Shortcuts
Likes
- 4x6bandsaw
- Messages
Search
|
Re: Bainbridge blade guides [1 Attachment]
Bill,
toggle quoted message
Show quoted text
Thanks for the information and confirmation. I must have been having a bad day. You're spot on about the ID. Once I stepped away from the washer and measured the shaft, the OD of the shaft is .625", thus the ID of the washer needs to be at least that..... DUH! Using a different set of calipers, I can confirm, the "good" washer's ID is .688. Which causes me to ask, is the difference between shaft OD and thrust washer ID wear on the thrust, or intentional clearance? (I am told I "pick nits", feel free to advise me if I am doing so here.) Thanks for the link and transfer of knowledge on the 660 vs 841. I've never messed with thrust washers before so this is all a great education. :) Thanks and Merry Christmas! Darren? ---In 4x6bandsaw@..., <bill_1955@...> wrote : Looking at the pic Darren, they look a bit larger on the ID than .4” (10mm) Check that dim, and take a look at McMaster Car & see if anything they have will work. ? Also looking at the pic, they appear to be 841 by their color. 841 is synonymous with Oilite, or oil impregnated bronze. That’s just a guess….pics can be deceiving depending on the light. Since they are in an oiled gearbox, 841 seems a bit redundant, and I would think 660 would work fine. ? Bill ? ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Saturday, December 08, 2018 11:14 AM To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: Bainbridge blade guides [1 Attachment] ? ? [Attachment(s) from Darren McCarley included below] Need a bit of help finding some thrust washers. At least I think they are thrust washers. I'm looking for 2 non-ferrous washers that measure 38mm od, 10mm id, and 3mm thick. (1.5"od, .4" id, .1" thick). These go in the gear box. One between the drive sprocket and case and the other between the final bearing and worm gear. (This one was completely trashed, as was the roller bearing.) Here's a couple of pictures of what I'm needing. These don't look to be brass. Bronze maybe?? Thanks!! Darren ?
|
|
Re: Bainbridge blade guides [1 Attachment]
开云体育Looking at the pic Darren, they look a bit larger on the ID than .4” (10mm) Check that dim, and take a look at McMaster Car & see if anything they have will work.
? Also looking at the pic, they appear to be 841 by their color. 841 is synonymous with Oilite, or oil impregnated bronze. That’s just a guess….pics can be deceiving depending on the light. Since they are in an oiled gearbox, 841 seems a bit redundant, and I would think 660 would work fine. ? Bill ? ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Saturday, December 08, 2018 11:14 AM To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: Bainbridge blade guides [1 Attachment] ? ? [Attachment(s) from Darren McCarley included below] Need a bit of help finding some thrust washers. At least I think they are thrust washers. I'm looking for 2 non-ferrous washers that measure 38mm od, 10mm id, and 3mm thick. (1.5"od, .4" id, .1" thick). These go in the gear box. One between the drive sprocket and case and the other between the final bearing and worm gear. (This one was completely trashed, as was the roller bearing.) Here's a couple of pictures of what I'm needing. These don't look to be brass. Bronze maybe?? Thanks!! Darren ? On Sat, Dec 1, 2018 at 1:25 PM Darren McCarley <darren.mccarley@...> wrote:
|
|
Re: Bainbridge blade guides
Need a bit of help finding some thrust washers. At least I think they are thrust washers. I'm looking for 2 non-ferrous washers that measure 38mm od, 10mm id, and 3mm thick. (1.5"od, .4" id, .1" thick). These go in the gear box. One between the drive sprocket and case and the other between the final bearing and worm gear. (This one was completely trashed, as was the roller bearing.) Here's a couple of pictures of what I'm needing. These don't look to be brass. Bronze maybe?? Thanks!! Darren On Sat, Dec 1, 2018 at 1:25 PM Darren McCarley <darren.mccarley@...> wrote:
|
|
Re: Bainbridge blade guides
Well, the new cam followers and blade back bearing came in. The cam followers were maybe .01 bigger in diameter but that was an easy fix w/ some fine filing. Thanks for the suggestions!! Next up is replacing all 7 roller bearings, a couple of seals, a few thrust bearings, finish cleaning up the main body, prime, paint, and reassemble. This thing is FINALLY coming?together. :) I'll post pics and a bit of a write up once completed. While I doubt anyone else needs the part numbers, I'll post the part numbers I've used. Heck, I might need them later. :) You guys continue to rock! Thanks for the help, inspiration, and support!! Darren
|
|
Re: New file uploaded to 4x6bandsaw
开云体育De nada Carl, ? Yahoo takes a little navigation to find albums & files, as someone pointed out to me a while ago. Since, I try and make it easy, and I went in search of to see your pics, easy enough to through the link out there. J Bill ? ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Friday, November 30, 2018 1:49 PM To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? ? Bill, ?? Thanks, didn’t think about including the link. Carl H ? From: Bill Armstrong bill_1955@... [4x6bandsaw] Sent: Friday, November 30, 2018 10:36 AM To: 4x6bandsaw@... Subject: RE: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? ? A link to Carl’s blade wiper pic: Bill From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
? If you guys are interested I posted a picture several years ago of some simple sweeps I came up with for my saw. They only consist of two 90 degree braces with stick-on felt from Lowes. They are held in place with small Neodymium magnets which makes it very easy to remove, clean or readjust. There are also a few other pics of some other simple mods to ease use of the saw. They are in the album Carl’s 4x6 at the group. Carl H From: vreededesign@... [4x6bandsaw] Sent: Friday, November 30, 2018 4:20 AM To: 4x6bandsaw@... Subject: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? To tackle your questions in reverse order: 1. You've got it, about the top of the guide roller block needing to be square to the blade at least in front elevation for the scraper to work correctly. File off, turn by holding in the lathe independent 4-jaw or shim are ways to correct. 2. You can use any design for vertical table that appeals to you.? I used the small angled-shape table as an example because it would be easy to incorporate into the scraper block design than the flip up one but do as you please.? At the moment I have to dismount the scraper to bolt on the vertical table so combining the 2 has real-world advantages 3. I thought you did mean printing the scraper blades as one with the body and can see no real reason not to? other than longevity,? PET doesn't have the same abrasion resistance as UHMWPE, but that said it might well last long enough. HSS hacksaw blade ends obviously would last longer than any plastic wiper/scraper and I like the idea of slots for them to fit into.? The only trouble I had in making the aluminium version was tapping the threads for the fixing screws, had to grind off the bottom of the tap, so the threads would go in far enough - there's not much room for the end of the tap with the threads angled to one another.? Maybe you could print the threads? (- only just thought of that and don't even know if its possible???) I'm trying to envisage the press fit of the nuts but there really is very little room to slide 2 nuts in the back of the blade holder Give it a go! - jv
|
|
Re: New file uploaded to 4x6bandsaw
开云体育Bill,
?? Thanks, didn’t think about including the link.
Carl H
? From: Bill Armstrong bill_1955@...
[4x6bandsaw]
Sent: Friday, November 30, 2018 10:36 AM
To: 4x6bandsaw@...
Subject: RE: [4x6bandsaw] Re: New file uploaded to
4x6bandsaw ?
?
A link to Carl’s blade wiper pic:
Bill
From: 4x6bandsaw@...
[mailto:4x6bandsaw@...] ? If you guys are interested I posted a picture several years ago of some simple sweeps I came up with for my saw. They only consist of two 90 degree braces with stick-on felt from Lowes. They are held in place with small Neodymium magnets which makes it very easy to remove, clean or readjust. There are also a few other pics of some other simple mods to ease use of the saw. They are in the album Carl’s 4x6 at the group. Carl H From: vreededesign@... [4x6bandsaw] Sent: Friday, November 30, 2018 4:20 AM To: 4x6bandsaw@... Subject: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? To tackle your questions in reverse order: 1. You've got it, about the top of the guide roller block needing to be square to the blade at least in front elevation for the scraper to work correctly. File off, turn by holding in the lathe independent 4-jaw or shim are ways to correct. 2. You can use any design for vertical table that appeals to you.? I used the small angled-shape table as an example because it would be easy to incorporate into the scraper block design than the flip up one but do as you please.? At the moment I have to dismount the scraper to bolt on the vertical table so combining the 2 has real-world advantages 3. I thought you did mean printing the scraper blades as one with the body and can see no real reason not to? other than longevity,? PET doesn't have the same abrasion resistance as UHMWPE, but that said it might well last long enough. HSS hacksaw blade ends obviously would last longer than any plastic wiper/scraper and I like the idea of slots for them to fit into.? The only trouble I had in making the aluminium version was tapping the threads for the fixing screws, had to grind off the bottom of the tap, so the threads would go in far enough - there's not much room for the end of the tap with the threads angled to one another.? Maybe you could print the threads? (- only just thought of that and don't even know if its possible???) I'm trying to envisage the press fit of the nuts but there really is very little room to slide 2 nuts in the back of the blade holder Give it a go! - jv |
|
Re: New file uploaded to 4x6bandsaw
Just out of curiosity.... Could you drill holes in a hacksaw blade and incorporate the blade in the printing process? (Think plug welds).? For the record, I know very little about 3d printing.? Darren
|
|
Re: New file uploaded to 4x6bandsaw
开云体育A link to Carl’s blade wiper pic: ? Bill ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Friday, November 30, 2018 7:59 AM To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? ? If you guys are interested I posted a picture several years ago of some simple sweeps I came up with for my saw. They only consist of two 90 degree braces with stick-on felt from Lowes. They are held in place with small Neodymium magnets which makes it very easy to remove, clean or readjust. There are also a few other pics of some other simple mods to ease use of the saw. They are in the album Carl’s 4x6 at the group. ? Carl H ? From: vreededesign@... [4x6bandsaw] Sent: Friday, November 30, 2018 4:20 AM To: 4x6bandsaw@... Subject: [4x6bandsaw] Re: New file uploaded to 4x6bandsaw ? ? To tackle your questions in reverse order: 1. You've got it, about the top of the guide roller block needing to be square to the blade at least in front elevation for the scraper to work correctly. File off, turn by holding in the lathe independent 4-jaw or shim are ways to correct. 2. You can use any design for vertical table that appeals to you.? I used the small angled-shape table as an example because it would be easy to incorporate into the scraper block design than the flip up one but do as you please.? At the moment I have to dismount the scraper to bolt on the vertical table so combining the 2 has real-world advantages 3. I thought you did mean printing the scraper blades as one with the body and can see no real reason not to? other than longevity,? PET doesn't have the same abrasion resistance as UHMWPE, but that said it might well last long enough. HSS hacksaw blade ends obviously would last longer than any plastic wiper/scraper and I like the idea of slots for them to fit into.? The only trouble I had in making the aluminium version was tapping the threads for the fixing screws, had to grind off the bottom of the tap, so the threads would go in far enough - there's not much room for the end of the tap with the threads angled to one another.? Maybe you could print the threads? (- only just thought of that and don't even know if its possible???) I'm trying to envisage the press fit of the nuts but there really is very little room to slide 2 nuts in the back of the blade holder Give it a go! - jv ?
|
|
Re: New file uploaded to 4x6bandsaw
开云体育If you guys are interested I posted a picture several years ago of some
simple sweeps I came up with for my saw. They only consist of two 90 degree
braces with stick-on felt from Lowes. They are held in place with small Neodymium
magnets which makes it very easy to remove, clean or readjust. There are also a
few other pics of some other simple mods to ease use of the saw. They are in the
album Carl’s 4x6 at the group.
?
Carl H
? From: vreededesign@... [4x6bandsaw]
Sent: Friday, November 30, 2018 4:20 AM
To: 4x6bandsaw@...
Subject: [4x6bandsaw] Re: New file uploaded to
4x6bandsaw ?
?
To tackle your questions in reverse order: 1. You've got it, about the top of the guide roller block needing to be
square to the blade at least in front elevation for the scraper to work
correctly. File off, turn by holding in the lathe independent 4-jaw or shim are
ways to correct.
2. You can use any design for vertical table that appeals to you.? I
used the small angled-shape table as an example because it would be easy to
incorporate into the scraper block design than the flip up one but do as you
please.? At the moment I have to dismount the scraper to bolt on the
vertical table so combining the 2 has real-world advantages
3. I thought you did mean printing the scraper blades as one with the body
and can see no real reason not to? other than longevity,? PET doesn't
have the same abrasion resistance as UHMWPE, but that said it might well last
long enough. HSS hacksaw blade ends obviously would last longer than any plastic
wiper/scraper and I like the idea of slots for them to fit into.? The only
trouble I had in making the aluminium version was tapping the threads for the
fixing screws, had to grind off the bottom of the tap, so the threads would go
in far enough - there's not much room for the end of the tap with the threads
angled to one another.? Maybe you could print the threads? (- only just
thought of that and don't even know if its possible???) I'm trying to envisage
the press fit of the nuts but there really is very little room to slide 2 nuts
in the back of the blade holder
Give it a go! - jv
? |
|
Re: New file uploaded to 4x6bandsaw
To tackle your questions in reverse order:
1. You've got it, about the top of the guide roller block needing to be square to the blade at least in front elevation for the scraper to work correctly. File off, turn by holding in the lathe independent 4-jaw or shim are ways to correct.? 2. You can use any design for vertical table that appeals to you.? I used the small angled-shape table as an example because it would be easy to incorporate into the scraper block design than the flip up one but do as you please.? At the moment I have to dismount the scraper to bolt on the vertical table so combining the 2 has real-world advantages 3. I thought you did mean printing the scraper blades as one with the body and can see no real reason not to? other than longevity,? PET doesn't have the same abrasion resistance as UHMWPE, but that said it might well last long enough. HSS hacksaw blade ends obviously would last longer than any plastic wiper/scraper and I like the idea of slots for them to fit into.? The only trouble I had in making the aluminium version was tapping the threads for the fixing screws, had to grind off the bottom of the tap, so the threads would go in far enough - there's not much room for the end of the tap with the threads angled to one another.? Maybe you could print the threads? (- only just thought of that and don't even know if its possible???) I'm trying to envisage the press fit of the nuts but there really is very little room to slide 2 nuts in the back of the blade holder Give it a go! - jv ? |
|
Re: New file uploaded to 4x6bandsaw
Ok, I have a couple of ideas about the design. One design would be printed similar to the aluminum piece that you use to carry the hacksaw blade scraper. I envision making the angled blade carrier (the area that the scraper blade is attached to) somewhat larger for more support from the plastic and slotted such that the blade could be sandwiched between two sides. I would then use an appropriately sized screw through the hole in the blade and press-fit a nut in an inset on the blade side to clamp the blade in place.?
The other idea would be to just print the whole thing and do away with the blade altogether...alternatively, slot it as above so that a replaceable wiper blade made of one or more thicknesses of plastic cut from a milk jug could be used. As for the vertical seat/table, I like the hinged design that is in the Sept/Oct 1997 HSM magazine. A picture of it is in the files or photos section...I have that particular issue so not sure where it is here. When you refer to the top surface of the guide roller block being square to the blade, that is something I hadn't considered! Are you are referring to the surface of the guide roller block that the scraper attaches to, so that if it is not perpendicular to the top of the blade the scraper blades will be skewed and could hit the teeth of the blade? |
|
Re: New file uploaded to 4x6bandsaw
Cool.??
You might want to increase its size a bit and make a mini-vertical-table so that you don't need to take it off to replace with the vertical table. There are pictures in the Photos section for them that can be left on when the saw is used horizontally and are instantly ready for vertical use.? Not big, but enough for most jobs. Only thing I can think of which might be a problem (and it is how ever you make any scraper) - check that the top surface of the guide roller block is square to the blade - often they're not - jv |
|
Re: New file uploaded to 4x6bandsaw
Of course, those of us with 3D printers are likely wondering if perhaps a unit such as the one that uses hacksaw blades as wipers could not be printed entirely out of a water-resistant material such as PETG.?
I have some PETG filament that has some flexibility to it...maybe I'll give it a go. |
|
Re: Bainbridge blade guides
开云体育Yes, it came through.? I think I will try the version made from aluminum and blade pieces, it seems that would work well. ?
? From: 4x6bandsaw@... <4x6bandsaw@...>
Sent: Monday, November 26, 2018 10:56 PM To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: Bainbridge blade guides ? ? |
|
New file uploaded to 4x6bandsaw
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the 4x6bandsaw group. File : /_Liquid coolant lube on a 4x6 bandsaw.pdf Uploaded by : john_vreede <vreededesign@...> Description : Coolant /Lube problems and blade scrapers You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, john_vreede <vreededesign@...> |
|
Re: Bainbridge blade guides
开云体育Cam rollers are a great choice in design for linear motion applications. ? I’m used to working with larger ones….. (See Attached) This is a FCF 5. 5” diameter flanged roller, 2-1/2” stud. Pic is from a 26 Ton Teletram underground haul-truck we rebuilt J Bill ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Monday, November 26, 2018 10:08 AM To: 4x6bandsaw@... Cc: darren.mccarley@... Subject: [4x6bandsaw] Re: Bainbridge blade guides ? ? Some interesting information on cam followers here
in their downloads. ? especially this one.
? ? R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
? ? CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.
|
|
Re: Bainbridge blade guides
开云体育Some interesting information on cam followers here
in their downloads.
?
especially this one.
?
?
R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
Electrical Reliability Services, VERTIV jim.klessig@..., jim_klessig@... 1876 Gwin Rd, Mckinleyville | CA | 95519 | USA | Cell (707) 497-9611 | eFax 614-410-0653 ?
?
CONFIDENTIALITY NOTICE: This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may contain confidential and privileged information protected
by law. If you received this e-mail in error, any review, use, dissemination, distribution, or copying of the e-mail is strictly prohibited. Please notify the sender immediately by return e-mail and delete all copies from your system.
|
|
Re: Bainbridge blade guides
JV, More great info. However, the link isn't working for me. Maybe it's just me? I do plan on fabricating a blade brush/scraper/wiper. If I'm imagining this correctly, the swarf would basically act like mini hammer strikes against the guide rollers. The largest down side I can imagine is that I'll lose some blade rigidity as the "scraper" would need to exist just in front of the rollers. Not that big of a deal, as far as I can?imagine.? As far as the drip pan goes. Great point on the horizontal drip. I hadn't thought of that aspect of the project. Furthermore, the electrical components of the motor, switch, lines, etc, need to be considered. This will present an interesting opportunity for some real red neck engineering as the motor does swing below the original pan horizontal plane. Perhaps a "drip deflection pan"? I'll have to play all those scenarios out once the saw is back in one piece. (It is currently in about 150.) I had planned on rewiring the motor, buying a new switch, etc. anyway.? Robert, GREAT point. Once the new cam followers come in, I'll see if they indeed are hollow and will either press some brass plugs, or perhaps, find some screws that fit the thread. Worse case, a dab of JB weld. I'm only kind of joking about the JB weld. :) Thanks for the thought provoking input to you all! Great community you have here. I'm glad I was directed ya'll's way! Merry Christmas! Darren
|
|
Re: Bainbridge blade guides
开云体育Darren, ? If you are not going to install grease fittings, after filling with grease, you should at least install brass plugs to keep the swarf from migrating into the open hole. ? Robert Downs ? From: 4x6bandsaw@... [mailto:4x6bandsaw@...]
Sent: Sunday, November 25, 2018 16:19 To: 4x6bandsaw@... Subject: Re: [4x6bandsaw] Re: Bainbridge blade guides ?
My two cents:?? If Ed says the cam followers are slush filled that just means there's enough grease in them to stop it rusting etc so it still needs extra grease before being put into use.? Agree you don't need to put is a zerk but you will need to fill the internal space inside the cam follower with grease (without blowing the seals!). ? _,_.___ Posted by: vreededesign@...
·???????? 1 ? ? Unsubscribe ? |
Bob Headrick