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Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
|
Hi Jody,? Never made one for the Atlas but I might.? Here's my thought.? Replace the threaded collar/nut on left end of the spindle with something like this.? First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: Jody <jp4lsu@...> Date: 2/3/19 08:37 (GMT-06:00) Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows]
Topic should be Making Spider. Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore. I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady. Thanks, Jody (DFW)
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This is the reason you have a lathe. Something I need to do for three different lathe, now, myself.
You can probably get yours done sooner and inspire me to get my freaking shop cleaned up.
Bill in OKC
On Sunday, February 3, 2019, 8:37:16 AM CST, Jody <jp4lsu@...> wrote:
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
|
About half-way down in the left column are plans for a 7x mini-lathe spider. The 7x spindle and the Atlas spindle are pretty close to the same dimensions. Change the threads for the metric threads specified, and the rest is probable pretty close. He even details making bolts that won't mar the finish on the barrel.
Bill in OKC
On Sunday, February 3, 2019, 8:37:16 AM CST, Jody <jp4lsu@...> wrote:
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
|
Just looked at those plans, kind of the same thought as my concept sketch. Using soft tip screws wont "really" mar your piece but if it's already polished and or blued, plated or whatever they will. In the chuck I usually take a strip of paper, fold it in half lengthwise and tear off a length to fit around the part. Wrap it around and put the jaws on that. In a spider I would use flat tip screws with a piece of brass shim stock wrapped around. The material only sees pressure instead of the rotating/grinding action. Not sure about the jam nuts. After it's set, locking the nuts will loosen the screws. I'm very anal regarding jaw marks, scratches and sometimes even fingerprints on a part I make. Just my thoughts,
Dave
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On February 3, 2019 at 10:58 AM "Bill in OKC too via Groups.Io" <wmrmeyers@...> wrote:
?
| | ? | Ralph Patterson plans mini-lathe modifications and tooling plans by Ralph Patterson |
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|
About half-way down in the left column are plans for a 7x mini-lathe spider. The 7x spindle and the Atlas spindle are pretty close to the same dimensions. Change the threads for the metric threads specified, and the rest is probable pretty close. He even details making bolts that won't mar the finish on the barrel.
Bill in OKC
On Sunday, February 3, 2019, 8:37:16 AM CST, Jody <jp4lsu@...> wrote:
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
On February 3, 2019 at 1:39 PM dpm100@... wrote:
Just looked at those plans, kind of the same thought as my concept sketch. Using soft tip screws wont "really" mar your piece but if it's already polished and or blued, plated or whatever they will. In the chuck I usually take a strip of paper, fold it in half lengthwise and tear off a length to fit around the part. Wrap it around and put the jaws on that. In a spider I would use flat tip screws with a piece of brass shim stock wrapped around. The material only sees pressure instead of the rotating/grinding action. Not sure about the jam nuts. After it's set, locking the nuts will loosen the screws. I'm very anal regarding jaw marks, scratches and sometimes even fingerprints on a part I make. Just my thoughts,
Dave On February 3, 2019 at 10:58 AM "Bill in OKC too via Groups.Io" <wmrmeyers@...> wrote:
?
| | ? | Ralph Patterson plans mini-lathe modifications and tooling plans by Ralph Patterson |
|
|
About half-way down in the left column are plans for a 7x mini-lathe spider. The 7x spindle and the Atlas spindle are pretty close to the same dimensions. Change the threads for the metric threads specified, and the rest is probable pretty close. He even details making bolts that won't mar the finish on the barrel.
Bill in OKC
On Sunday, February 3, 2019, 8:37:16 AM CST, Jody <jp4lsu@...> wrote:
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
Just curious if my response went?? Dave
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On February 3, 2019 at 10:58 AM "Bill in OKC too via Groups.Io" <wmrmeyers@...> wrote:
?
| | ? | Ralph Patterson plans mini-lathe modifications and tooling plans by Ralph Patterson |
|
|
About half-way down in the left column are plans for a 7x mini-lathe spider. The 7x spindle and the Atlas spindle are pretty close to the same dimensions. Change the threads for the metric threads specified, and the rest is probable pretty close. He even details making bolts that won't mar the finish on the barrel.
Bill in OKC
On Sunday, February 3, 2019, 8:37:16 AM CST, Jody <jp4lsu@...> wrote:
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
Hi Guys, For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective. I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little. ?Just my thoughts,
Dave
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On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,? Never made one for the Atlas but I might.? Here's my thought.? Replace the threaded collar/nut on left end of the spindle with something like this.? First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- From: Jody <jp4lsu@...> Date: 2/3/19 08:37 (GMT-06:00) Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys, For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective. I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little. ?Just my thoughts,
Dave On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,? Never made one for the Atlas but I might.? Here's my thought.? Replace the threaded collar/nut on left end of the spindle with something like this.? First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- From: Jody <jp4lsu@...> Date: 2/3/19 08:37 (GMT-06:00) Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
Sorry for the multiple replies! Got some slow....... internet today! Dave
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On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys,
For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective.
I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little.
?Just my thoughts,
Dave
On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,?
Never made one for the Atlas but I might.?
Here's my thought.?
Replace the threaded collar/nut on left end of the spindle with something like this.?
First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Jody <jp4lsu@...>
Date: 2/3/19 08:37 (GMT-06:00)
Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
No worries Dave, I've been getting them.
I think I do like the idea of the set sews on the spider bolts any sort of jam nut. -Jody
toggle quoted message
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-------- Original message -------- From: Dave Matticks <dpm100@...> Date: 2/3/19 2:36 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today! Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys,
For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective.
I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little.
?Just my thoughts,
Dave
On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,?
Never made one for the Atlas but I might.?
Here's my thought.?
Replace the threaded collar/nut on left end of the spindle with something like this.?
First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Jody <jp4lsu@...>
Date: 2/3/19 08:37 (GMT-06:00)
Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
I would like an iris instead of the set screws.
Ralph
On Sun, Feb 3, 2019 at 5:44 PM Jody < jp4lsu@...> wrote: No worries Dave, I've been getting them.
I think I do like the idea of the set sews on the spider bolts any sort of jam nut. -Jody -------- Original message -------- From: Dave Matticks < dpm100@...> Date: 2/3/19 2:36 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today! Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys,
For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective.
I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little.
?Just my thoughts,
Dave
On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,?
Never made one for the Atlas but I might.?
Here's my thought.?
Replace the threaded collar/nut on left end of the spindle with something like this.?
First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
Date: 2/3/19 08:37 (GMT-06:00)
Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
If you go that way, soft point set screws don't work. Need to have a little slug to bear against the threads of the part you're trying to lock or at least restrain.? Material choice depends on application.?
Dave?
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: Jody <jp4lsu@...> Date: 2/3/19 16:44 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making Spide
No worries Dave, I've been getting them.
I think I do like the idea of the set sews on the spider bolts any sort of jam nut. -Jody -------- Original message -------- From: Dave Matticks <dpm100@...> Date: 2/3/19 2:36 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today! Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys,
For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective.
I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little.
?Just my thoughts,
Dave
On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,?
Never made one for the Atlas but I might.?
Here's my thought.?
Replace the threaded collar/nut on left end of the spindle with something like this.?
First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Jody <jp4lsu@...>
Date: 2/3/19 08:37 (GMT-06:00)
Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
|
That could only work in a perfect world,? kind of like a perfect 3 jaw chuck that compensates for everything.? Dave?
Sent from my T-Mobile 4G LTE Device
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-------- Original message -------- From: Ralph Hulslander <rhulslander@...> Date: 2/3/19 16:53 (GMT-06:00) Subject: Re: [atlas-craftsman IO] Making Spide
I would like an iris instead of the set screws.
Ralph
On Sun, Feb 3, 2019 at 5:44 PM Jody < jp4lsu@...> wrote: No worries Dave, I've been getting them.
I think I do like the idea of the set sews on the spider bolts any sort of jam nut. -Jody -------- Original message -------- From: Dave Matticks < dpm100@...> Date: 2/3/19 2:36 PM (GMT-06:00) To: [email protected] Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today! Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote:
Hi Guys,
For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error!
Anyway, I just looked at it. Looks like the same idea as my concept sketch.
I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on.
You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective.
I can't stand any kind of marks on something that's supposed to look like new, no scratches either.
Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little.
?Just my thoughts,
Dave
On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote:
Hi Jody,?
Never made one for the Atlas but I might.?
Here's my thought.?
Replace the threaded collar/nut on left end of the spindle with something like this.?
First thing that popped into my head.?
Dave?
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
Date: 2/3/19 08:37 (GMT-06:00)
Subject: [atlas-craftsman IO] Making Spide
[Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
I built a spider for my Atlas Clausing 12X36 to chamber rifle barrels for various rebarreling projects. The spider is a light press fit on the end of the spindle with two rows of 4 socket head cap screws evenly spaced.
if I’m working on a barrel that is prefinished, I just use coke can aluminum under the screws, build a concentric barrel plug for each end (a snug fit between the lands of the bore) and dial in both ends with a DTI via a 4 jaw and the spider.
Since my spindle diameter isn’t large enough to pass a full barrel through, I also employ a steady rest on the breech end, and thread, face the breech, set the shoulder, and headspace before taking anything down. ?Concentricity is the name of the game, and I always attempt to shoot for (pun definitely intended) 1/2 a thou in remaining concentric on all linear and perpendicular mating surfaces.
|
It just occurred to me that a fairly obvious and available ready-made choice would be an adaptor from the thread on the left end of the spindle to 1-1/2”-8 would allow one to use a Jacobs 59B Headstock Chuck.? They open up to a hair over 3/4”, which is the limit for through the spindle. ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Ralph Hulslander
Sent: Sunday, February 3, 2019 16:53
To: [email protected]
Subject: Re: [atlas-craftsman IO] Making Spide? I would like an iris instead of the set screws. ? On Sun, Feb 3, 2019 at 5:44 PM Jody <jp4lsu@...> wrote: No worries Dave, I've been getting them. I think I do like the idea of the set sews on the spider bolts any sort of jam nut.
-------- Original message --------
From: Dave Matticks <dpm100@...>
Date: 2/3/19 2:36 PM (GMT-06:00)
To: [email protected]
Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today!
Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote: Hi Guys, For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error! ? Anyway, I just looked at it. Looks like the same idea as my concept sketch. ? I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on. ? You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective. I can't stand any kind of marks on something that's supposed to look like new, no scratches either. ? Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little. ?Just my thoughts, ? Dave On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote: Never made one for the Atlas but I might.? Replace the threaded collar/nut on left end of the spindle with something like this.? First thing that popped into my head.? Sent from my T-Mobile 4G LTE Device -------- Original message -------- Date: 2/3/19 08:37 (GMT-06:00) Subject: [atlas-craftsman IO] Making Spide [Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
I have not built one for my atlas, as I pretty much use it for a second operation machine. ?My primary lathe will take 2 inches through the spindle. ?I built a spider for it out of thick wall mechanical tubing. ?I also built a spider chuck. ?I used brass tipped screws from grizzly. ?Still good to use a shim on a finished barrel though.
They also make spiders?
Charles
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On Feb 3, 2019, at 10:30 PM, Robert Downs via Groups.Io < wa5cab@...> wrote: It just occurred to me that a fairly obvious and available ready-made choice would be an adaptor from the thread on the left end of the spindle to 1-1/2”-8 would allow one to use a Jacobs 59B Headstock Chuck.? They open up to a hair over 3/4”, which is the limit for through the spindle. ? Robert Downs ? ? I would like an iris instead of the set screws. ? On Sun, Feb 3, 2019 at 5:44 PM Jody <jp4lsu@...> wrote: No worries Dave, I've been getting them. I think I do like the idea of the set sews on the spider bolts any sort of jam nut.
-------- Original message --------
From: Dave Matticks <dpm100@...>
Date: 2/3/19 2:36 PM (GMT-06:00)
To: [email protected]
Subject: Re: [atlas-craftsman IO] Making Spide
Sorry for the multiple replies! Got some slow....... internet today!
Dave
On February 3, 2019 at 2:19 PM dpm100@... wrote: Hi Guys, For whatever reason I couldn't reply to Bill's post regarding spider plans. Permanent Error! ? Anyway, I just looked at it. Looks like the same idea as my concept sketch. ? I would not use soft tip adjusting screws on anything polished, blued, plated or otherwise finished.They will slightly mar the material due to the rotating action. Think about turning the steering wheel at a dead stop, plenty of abrading and embedding going on. ? You need something stationary to separate the screws from the work, wrap a piece of brass shim stock, maybe .010" thick around it. Only pressure instead of rotating. Could do the same with the chuck jaws but I prefer a piece of paper folded in half, torn to around the circumference of the part and wrapped around. Cheap, easy and very effective. I can't stand any kind of marks on something that's supposed to look like new, no scratches either. ? Not a fan of the jam nuts. Once adjusted, tightening the nuts will loosen the screws a little. ?Just my thoughts, ? Dave On February 3, 2019 at 9:41 AM Dave Matticks <dpm100@...> wrote: Never made one for the Atlas but I might.? Replace the threaded collar/nut on left end of the spindle with something like this.? First thing that popped into my head.? Sent from my T-Mobile 4G LTE Device -------- Original message -------- Date: 2/3/19 08:37 (GMT-06:00) Subject: [atlas-craftsman IO] Making Spide [Edited Message Follows] Topic should be Making Spider.
Eventually I'd like to be able to do a little barrel work and have been checking out various methods of indicating off the bore.
I was curious if anybody made a spider for the back end of the spindle.? Of course this cold be used to keep any stock steady.
Thanks,
Jody (DFW)
?
?
|
Robert,
I see where you are going.? This is actually and excellent idea for stock up to the 3/4" size.? This might be added to the growing list of projects for tolling on my lathe.? It seems my project list for lathe tooling is much longer than the actual project list.? It's like I'm wanting to make tooling for the possiblity of needing it one day.? Oh well....good practice.
The big reason you need a spider is to adjust for the cocentricity using the 4 adjustable bolts, something the Jacobs couldnt' do.? But for just holding stock from whipping around, this is actually a good idea Robert.
-Jody
|
Those are nice looking Charles.? Thanks for the links.? I might pick up those cap screws.
-Jody
|
If the stock is larger in diameter than 25/32” it won’t go through the spindle on an Atlas 9”, 10” or 12” anyway. ? If the stock diameter is 25/32” or less and it is held in a 3-jaw chuck or collet on the right end of the spindle and you attempt to move the left end by over tightening one or two of the four bolts in a traditional spider, you will be trying to bend the part or move the chuck jaws or collet. ? Robert Downs ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Jody
Sent: Monday, February 4, 2019 06:40
To: [email protected]
Subject: Re: [atlas-craftsman IO] Making Spide? Robert,
I see where you are going.? This is actually and excellent idea for stock up to the 3/4" size.? This might be added to the growing list of projects for tolling on my lathe.? It seems my project list for lathe tooling is much longer than the actual project list.? It's like I'm wanting to make tooling for the possiblity of needing it one day.? Oh well....good practice.
The big reason you need a spider is to adjust for the cocentricity using the 4 adjustable bolts, something the Jacobs couldnt' do.? But for just holding stock from whipping around, this is actually a good idea Robert.
-Jody
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Bill in OKC too
John W.