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Hi Keith Thanks for the reply. What is the actual size is the motor that comes with the Unimat PC. I was thinking of putting a 24v DC motor is as they are very popular, but if they are too big it's a

yes its a unimat 3, i have had it from new back in the 1970's its been loved and used then sat for years and is now back being loved and used.

Hi Peter. Thanks for the photos. It looks a nice setup. Is that a Unimat 3?

I intend to replace the motor on mine soon. I searched for a long time before I came to the conclusion you can't get a more powerful motor that fits in the hole for the original one, unless you go to

no the motor i had was just fixed to the base board i have on the lathe, and then i joined a polyethelene belt to the right length.

Thanks Peter. Did the mod need any special machining to mount the motor any further away? I don't suppose you have any photos do you?

no great hassle to change out, you just need the 24V motor and a power supply, i added a speed controller too, then its just mount the motor (i mounted mine further away which gives me more room

Hi All I have a unimat SL that works fine but is just a bit too small. I was thinking about the Unimat PC but the motors are under-powered. Is it a big job to change the motor for a 24v DC, has

Watched the TV show Grimm on NBC for several years and just rewatched Season 1, episode 1 on Netflix. ?Note that the clockmaker has a green Unimat on his workbench in the background.

My experience with the main longitudinal leadscrew is, A) it is very mild steel, easily bent, B) being a tiny bit out of true does not affect operation, and C) I have successfully hand straightened,

It'll cost me $56 for shipping of the $25 part

To pin down the bend, you need to turn it and dial indicate. You can only tell so much with a visual inspection and a flat plate or straightedge. And even when you find the exact bend, you may not be

Per Lathe City specs: Lead screw M8-1.0 left hand. ( http://lathecity.com/Learning%20Center%20LatheCity/What%20is%20an%20UNIMAT%20lathe.pdf ) But it might be easier and cheaper to just buy a new lead

THat is indeed the slitting saw/table saw arbor.? Match the bore of your blades to your arbor.? If you need to make an arbor patterned after the one pictured adjusting to fit gear cutters , slitting

I like to cut to nuts in half. Two section go under the threaded rod and a third goes on top where you are applying pressure. This will stop you from deforming the threads.?Jeff

Why fool around with this when you can buy a new lead screw from Tom's Tool Store for $25? Keep the old damaged one as a spare. Regarding straightening, the most accurate way that I have found is to

Hi: To straighten a shaft, roll it on a flat surface. You will know if it bumps. Then if you have an arbor press, put the shaft between two V blocks with hump high in the center. Press it gently down.

Hi: You could try a thread file. They don't care if the thread is left or right handed. You just need one with a 1mm pitch, the files I have, have 8 different pitches on them. 25 TPI might work OK.

I cant remember the thread size but it is a 1mm pitch left hand thread

The thread size doesn’t spring to mind, but there may be a suitable thread file available. Just an example here: http://thetoolshop.shoprw.com/Thread-File---Metric-P-19471.html Dave W