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It will work on few threads. Example Lead screw with 8TPI It will work on 8, 16, 24 , 32 , 40 and 48 TPI THREAD cutting. In metric leadscrew 2mm It will work on 2mm, 1 mm and .5mm I can do that with

I believe Martin Evans did one of these documented in "The Model Engineer" about 50 years ago. His had an automatic tool retract and second clutch for a double speed return! Like a Hardinge production

like these ? https://ponyjorgensen.com/product/classic-jorgensen-adjustable-handscrew/ thanks animal

They are of the style of an engineers hand clamp but really HUGE in comparison and of course made of wood. Best regards David

Are these clamps the " hand screw " clamps ? They have left & right hand threads . I've never seen a set with wooden screws . ??? animal

At end page he remove the clutch. Also have program to calculate for threading dials. Dave

When doing wood use a light bedway oil. Wipe off every hour. I use metal lathes for wood foundry patterns since 1960's. Never had a wood lathe Dave

A dog clutch is used for threading in a number of high end lathes e.g. the Hardinge HLV-H. The CGTK dog clutch is shown here: https://www.cgtk.co.uk/metalwork/minilathe/dogclutch CGTK copied it from

How do you keep from getting sawdust all over your oily ways, and every other part of the lathe with an oily film (i.e., all of it)?

If you haven't cut your thread already... As a woodworker and machinist, I have used my metal lathe for wood parts fairly frequently.? If the threads are Acme or similar, think about mounting a

Here is direct reading for a lathes in DRO'S. To big for mini lathes. Only for information. I found dials are far better as you do not loose capacity with

Doesn't the acceptable error depend on the length of engagement between the male and female parts? Ralphie

I used haft nut and threading dial most lfe. This first time in metric lead screw . See nothing wrong a threading dial. Dave

CGTK.CO.UK made this dog clutch, however, in is web page he said this: Update - Dog Clutch Removed About a year or so after building and fitting the dog clutch, I finally removed it from the

Neat! Do you know if there's a site that has any of the other service bulletins? Roy

Here the screw being thread Finish In the lathe ready for other end to be turned Dave

A one tooth dog clutch on the spindle. Bill wrote:

I find numerous problems with the scheme of moving both handwheels like that for the purpose of making a 29.5 degree vector.? That's all that is happening.? Two vectors at right angles combining to

??? ??? Thanks , that interestin . I have never seen a red one in the wild . ??? animal

At the bottom of page 14, Bulletin 33-j, it says you can order _*RED*_ or _*Grey*_ as your color....