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Use a metric thread file.? Available in 1.0 pitch inside and outside file.? It uses finger pressure matching and restoring the thread. ?It is a flat file you press into the thread.?
Look at my previous post with McMaster Carr part numbers.?
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On May 10, 2023, at 7:07 PM, rcjge <jgpedwards@...> wrote:
? Can believe there’s no M12x1.0 thread chasing tap and die available…?
maybe a European member of forums can help??
Grainger, Mactools, etc, don’t seem to have an M12x1.0 thread chaser. They are different from a cutting tap/die.?
a tap or die for thread cutting could destroy the threads m trying to clean up…
Dont know why the M12x1.0 die wouldn’t run onto the Unimat tailstock ram external (drill chuck) thread. It was obviously one sided with some chamfering on one side to allow settling over thread spindle nose but grabbed too much from there to be hand turned and I didn’t want to risk using a die wrench.?
Jeff
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Can believe there’s no M12x1.0 thread chasing tap and die available…?
maybe a European member of forums can help??
Grainger, Mactools, etc, don’t seem to have an M12x1.0 thread chaser. They are different from a cutting tap/die.?
a tap or die for thread cutting could destroy the threads m trying to clean up…
Dont know why the M12x1.0 die wouldn’t run onto the Unimat tailstock ram external (drill chuck) thread. It was obviously one sided with some chamfering on one side to allow settling over thread spindle nose but grabbed too much from there to be hand turned and I didn’t want to risk using a die wrench.?
Jeff
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Amazon? RzNXTyZ3aWRnZXROYW1lPXNwX3Bob25lX3NlYXJjaF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
Granger? | |
Matco?
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On May 10, 2023, at 2:58 PM, rcjge <jgpedwards@...> wrote:
?Hi Bill
my issue is cutting taps and dies seem to remove too much metal. A thread chaser is a little different in that it repairs minor flaws.
I tried an M12x1.0 die on the tailstock ram spindle thread last night, no joy.. It was clearly the right size but wouldn’t run on readily.
Jeff
Also, look into thread forming taps. They are designed to form
threads by displacing instead of removing metal and might do what
you want: .
I don't find corresponding thread forming dies, but mcmaster has
an entire external thread repairing category:
And they reminded me of thread repairing files, which might suit
your purpose.
On 5/10/23 15:59, Tool247 wrote:
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I would buy a die and grind out 3 of the flutes with a
dremel stone and use to chase with one flute with finger
pressure.
also you could grind out 1 of a 2 flute tap or 2 of a 4
flute tap and chase the internal threads with finger pressure.
Also, I have used a regular tap as a chaser for external
threads by just pushing the points of a tap flute into the
external threads and chase them.
McMaster # 8309A11? metric thread file....0.8mm-3mm pitch
threads...external only
McMaster #2542A42??? Metric internal and external thread
file....ends might be just small enough to fit M12...
McMaster has other sets and choices for thread files and
thread repair.....
They actually have thread repair dies for metric....
good luck
Hi
Bill
my issue is cutting taps and dies seem to remove too much
metal. A thread chaser is a little different in that it
repairs minor flaws.
I tried an M12x1.0 die on the tailstock ram spindle thread
last night, no joy.. It was clearly the right size but
wouldn’t run on readily.
Jeff
|
I would buy a die and grind out 3 of the flutes with a dremel stone and use to chase with one flute with finger pressure. also you could grind out 1 of a 2 flute tap or 2 of a 4 flute tap and chase the internal threads with finger pressure.
Also, I have used a regular tap as a chaser for external threads by just pushing the points of a tap flute into the external threads and chase them.
McMaster # 8309A11? metric thread file....0.8mm-3mm pitch threads...external only McMaster #2542A42??? Metric internal and external thread file....ends might be just small enough to fit M12...
McMaster has other sets and choices for thread files and thread repair..... They actually have thread repair dies for metric....
good luck
Hi Bill
my issue is cutting taps and dies seem to remove too much metal. A thread chaser is a little different in that it repairs minor flaws.
I tried an M12x1.0 die on the tailstock ram spindle thread last night, no joy.. It was clearly the right size but wouldn’t run on readily.
Jeff
|
Hi Bill
my issue is cutting taps and dies seem to remove too much metal. A thread chaser is a little different in that it repairs minor flaws.
I tried an M12x1.0 die on the tailstock ram spindle thread last night, no joy.. It was clearly the right size but wouldn’t run on readily.
Jeff
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Re: Quick Change Tool Post and Buddy Bar
Kit I have one of these sets CNC machined precise and very well made.?
pat?
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Re: Was browsing the Aloris Tools website
Hello,David,
Your QC Toolpost is taking shape. Looking forward to seeing your finished project!
Dick
--
http://www.homemadetools.net/forum/?OFF-SET-tailstock-center-65965#post105972
?SMALL TURRET TOOL POST PLANS?
?LARGE TURRET TOOL POST PLANS
?MINI-LATHE CARRIAGE LOCK PLANS
?SMALL QC TOOL POST PLANS?
?QUICK CHANGE LATHE TURRET
?MINI LATHE COMPOUND PIVOT MODIFICATION
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Everyone I know uses taps and dies, and IIRC you're not interested in them.
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Tuesday, May 9, 2023 at 04:21:21 PM CDT, rcjge <jgpedwards@...> wrote:
So NO, on the thread chaser?!
Jeff
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So NO, on the thread chaser?!
Jeff
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Re: Was browsing the Aloris Tools website
The problem with the toolpost shown here is that it only holds a tool in one direction.
As mentioned elsewhere, "hkoesnadi" has toolposts currently on Ebay.
Also, if you want something a little bigger, there is the steel Sherline toolpost, currently on sale at $227.
I use these on Sherline lathes, and am very satisfied.? It does not rely on a central lever, but a capscrew to fasten a toolholder in each direction.
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Re: Quick Change Tool Post and Buddy Bar
Rather than item number, please search by Seller -- hkoesnadi.
If you want one of these, don't fart around.? He only makes these and sells peridically.
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Re: Quick Change Tool Post and Buddy Bar
Looks like he relisted it, different number:
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I just checked eBay for that number. It returned nothing. What is the seller name so I can search his store? Kit Maira Support the Cause of Peace
Visit?? On May 5, 2023, at 10:02 AM, Steve Johnson <steve@...> wrote:
?Just got a note from Harry - the tool post kits are back in stock and on Ebay. I just ordered one.?
Ebay item #285269003226
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Re: Quick Change Tool Post and Buddy Bar
I just checked eBay for that number. It returned nothing. What is the seller name so I can search his store? Kit Maira Support the Cause of Peace
Visit??
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On May 5, 2023, at 10:02 AM, Steve Johnson <steve@...> wrote:
?Just got a note from Harry - the tool post kits are back in stock and on Ebay. I just ordered one.?
Ebay item #285269003226
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Re: Was browsing the Aloris Tools website
Hello Herman, The line drawing shows the EMCO (original) QCTP designed for the Unimat 3 - here's a photo  I don't believe the QCTP photo you provided to be a Unimat 3 issued item. There are many small QCTPs that are small enough to fit the Unimats.
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Re: Projects Built on the Unimat?
Thank you for the clarification.
Hi Stephen
The Module is Module 1.
As a side note the keyway which was in the plans and the original Unimat set aren't neccessary.
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Re: Was browsing the Aloris Tools website
Interesting.? Uses a cap screw in the bottom front slot to lock in the holder.? Simple design, easy to DIY……
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On May 9, 2023, at 1:31 AM, Mike Gidley <mike.61dley@...> wrote:
?Saw this picture once . Any thoughts. It said it was for the Unimat 3. <Uni3toolpost.jpg>
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Re: Was browsing the Aloris Tools website
Not sure what the question is but it looks like a quick change tool post. The original Unimat version can be found ? and below
Op 09-05-2023 07:31 schreef Mike Gidley <mike.61dley@...>:
Saw this picture once . Any thoughts.
It said it was for the Unimat 3.
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Re: Was browsing the Aloris Tools website
Saw this picture once . Any thoughts. It said it was for the Unimat 3. 
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Re: Projects Built on the Unimat?
Hi Stephen
The Module is Module 1.
As a side note the keyway which was in the plans and the original Unimat set aren't neccessary.
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Tool247
rcjge
John Entwistle
OldToolmaker
Bill in OKC too
Kit Maira
Herman de Leeuw