No, I'm not...I said for manual Deckel mills. In the case of CAT40 the adapter would have 5/8"-11 threads on one end and the special Deckel buttress threads on the other end. It would look similar to below (except below is actually an R8 to buttress thread adapter)
I'm talking about manual as well. You said BT40, too, and the studs I'm talking about are M16 to M20 saw. Just trying to help.
OK, good..thanks....but you used the word "pull stud" which threw me completely off the trail. I suppose it is a "stud" and the threaded drawbar does "pull" upon it, but generally that term is only used for hydraulic or pneumatic drawbar studs.
OK, good..thanks....but you used the word "pull stud" which threw me completely off the trail. I suppose it is a "stud" and the threaded drawbar does "pull" upon it, but generally that term is only used for hydraulic or pneumatic drawbar studs.
Is this the Haimer you mean ? Haimer GmbH - Pull Stud --- That's the page - I looked at it before I posted and didn't see the variety we're talking about but maybe it's buried somewhere. The part number was 88.600.40
On another subject, can you add state (if USA) to your location profile as there are lots of "Denvers" in the world. Sho' thing.
Don is nosing around for adapters on my behalf.
Anyone know where to purchase some fully threaded rod with Buttress thread? From the above posts seems like it would be fairly easy to make your own adapters if you did not have mees with cutting the Buttress thread.
I am also looking for a set of direct fit imperial SK40 collets. I know that Singer sells them but it would be nice not having to mess with importing them in. Does anyone know of somebody in the states that sells them?
Anyone know where to purchase some fully threaded rod with Buttress thread? From the above posts seems like it would be fairly easy to make your own adapters if you did not have mees with cutting the Buttress thread.
Funny, now that you mention it, I vagely recall buying a 3 foot or so rod of buttress thread myself and never actually using it. Seems like years ago one of the PM members did a one time run of some on a CNC lathe and I bought his last piece...but damned if I can remember what I did with it...will look today.
And just to keep things fair, can you also edit your location profile to give some hint to other members of where you are ? Ideally the state, but "midwest usa" would be ok as well.
OK, found it. The rod is 36" long with aprox 34.5" of threaded area. It is the same 2.0 pitch but the quality is not quite as good original Deckel tooling. What I mean by that, it appears ok and pitch is accurate...but the major diameter is only 19.08mm compared to 19.62mm on the real deal. Minor diameters, at 17.70mm (as best I can measure with sharp edges of standard calipers anyway) seem to be identical. Bottom line is, it will work...and probably work well....but posting this here to see what others think. In other words, at 19.08mm major diameter will it be strong enough to never ever strip the threads ?
As to what to charge for it, I have no idea...can't remember what I paid.
In related news, I have a nice set of pristine inch (no.40 and the smaller ones with no 40 adapter) Deckel collets I might put on eBay. I had been holding off on selling them since they came with a Deckel jig borer...but the more I think about it, they probably wouldn't get full value if sold with the jig borer anyway.
Also have two pristine in wood boxes, Wohlhaupter boring head kits that came with the jig borer. One is the UPA 3 with no 40 buttress thread and the other, the mythical tiny UPA 1, with MT 2 (threaded) shaft
I made a dozen or so for my fp1 m4 tool holders, buttress to 1/2 13 out of 4130. I have the original part file if you have a cnc lathe. Let me know if you want it sent to you. You can buy the buttress thread form tools but grinding them is no big deal.
OK, found it. The rod is 36" long with aprox 34.5" of threaded area. It is the same 2.0 pitch but the quality is not quite as good original Deckel tooling. What I mean by that, it appears ok and pitch is accurate...but the major diameter is only 19.08mm compared to 19.62mm on the real deal. Minor diameters, at 17.70mm (as best I can measure with sharp edges of standard calipers anyway) seem to be identical. Bottom line is, it will work...and probably work well....but posting this here to see what others think. In other words, at 19.08mm major diameter will it be strong enough to never ever strip the threads ?
I bought a short length 12" from a guy who used to advertise it on Ebay in the states. It was supposed to have been finished with a die but it did NOT fit the deckel drawbars
I was faced with putting it up in the lathe to shave it down to size , and of course gripping a threaded rod in the chuck is far from Ideal.
As I had to grind a tool anyway, I single pointed eight inches on a bit of (correct dia) bar which was no hardship . It is then easier to drill tap (to suit whatever stud you need ) and part off as required.
I bought a short length 12" from a guy who used to advertise it on Ebay in the states. It was supposed to have been finished with a die but it did NOT fit the deckel drawbars
I was faced with putting it up in the lathe to shave it down to size , and of course gripping a threaded rod in the chuck is far from Ideal.
As I had to grind a tool anyway, I single pointed eight inches on a bit of (correct dia) bar which was no hardship . It is then easier to drill tap (to suit whatever stud you need ) and part off as required.
For my curiosity, what was the problem that it would not fit....pitch off, minor diameter too large, thread shape, or ? I don't see any problem with this rod other than the major diameter seems less than ideal. I could go ahead and cut off a short section and make sure it will fit the Deckel jig borer drawbar properly.
For my curiosity, what was the problem that it would not fit....pitch off, minor diameter too large, thread shape, or ? I don't see any problem with this rod other than the major diameter seems less than ideal. I could go ahead and cut off a short section and make sure it will fit the Deckel jig borer drawbar properly.
Leave it full length and simply try it on the horizontal spindle of that very nice FP2 you have......
Cheers Ross
I made a dozen or so for my fp1 m4 tool holders, buttress to 1/2 13 out of 4130.
If i was needing to make some of these I think i would opt for 4142 pre heat treated (RC 30 or so) as supplied from the mill.
Higher strength and better fatigue life along with better wear resistance.....plus the heat treated material makes for a very slick finish.
Cheers Ross
OK, found it. The rod is 36" long with aprox 34.5" of threaded area. It is the same 2.0 pitch but the quality is not quite as good original Deckel tooling. What I mean by that, it appears ok and pitch is accurate...but the major diameter is only 19.08mm compared to 19.62mm on the real deal. Minor diameters, at 17.70mm (as best I can measure with sharp edges of standard calipers anyway) seem to be identical. Bottom line is, it will work...and probably work well....but posting this here to see what others think. In other words, at 19.08mm major diameter will it be strong enough to never ever strip the threads ?
Only 3%, but ....21 thou undersize on 3/4"? I'd say more than a little bit 'marginal' if the goal is 'never, ever' strip.
That said, so long as it is the easily replaceable part that DOES strip or shear, AND w/o damage to the expensive bits, perhaps safe enough.
What can you determine as to their relative strength and hardness?
FWIW, I tried a short section of the 2.0 buttress rod in the jig borer and it feels nice and snug but screws easily as well. A perfect fit except for missing .021" of thread diameter. I wonder if it unidirectional aspects might make is less likely to strip than standard threads ?
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Buttress thread adapters for CAT and BT40 tooling sources ?
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Originally Posted by Rich L
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