Thank you. My late father subscribed to Model Engineer magazine, so from my teens (55-odd years) I have known about the Potts, but until today I had never actually seen one "in the flesh". I live in South Africa, so it is unlikely I would come across one any other way. Versatile indeed!

thank you for that. I've heard of them but never actually seen one. very nicely presented.

What a cool lil add on

john you are really good thanks for posting, youtube gem

My thanks as well, I've seen this same Potts milling attachment many times in my collection of old M.E. magazines just as Russell did. And I can't recall seeing one mounted up on a lathe in any video yet. If my memory isn't faulty, I believe Potts also sold another much more simple and basic version without the large vertical adjustment and again meant to be driven with an overhead belt system. Likely there's now less interest in these simply because today far fewer even know about them or how they might be used. And most automatically think a milling machine is always required for proper milling. The work once it's been machined in a lathe chuck is already held and is as concentric as it's ever going to be. It's far more time and effort to transfer it over to a mill, recenter on a rotary table or dividing head to do what your Potts already can with even better accuracy. Today's industrial cnc machines use live tooling a great deal for good reason. It can work just as well on a manual lathe with a bit more set up time just as it did 50 - 70 years ago. Your integral motor drives just make them much nicer and easier to use. Unlikely with your obvious experience you don't know of and may already own them. But I very much recommend both of the George Thomas written books. The Model Engineers Workshop Manual and his Workshop Techniques book. Between the two they cover much of what your doing and go into great detail about lathe head stock dividing specifically for use with some type of cross slide mounted live tooling. Due to his influence I had some specific requirements I wasn't willing to do without when I bought my last lathe. A tee slotted cross slide being one of them.And while my lathe milling attachment doesn't have the vertical adjustment range that your Potts have, I did buy the Quick Step mill from Hemingway Kits when it was still available. A powered milling attachment and some method of dividing vastly increases what is then possible to do on a lathe. His use of a boring head in the lathes head stock and the work positioned on the cross slide to do concentric outside turning and boring might have simplified your issues while re-machining that one part.

Nice job. I'm just building a grinding spindle for a small T&C grinder. I have used a BLDC motor, but it is surprising how difficult it can be to find a decent small motor and control setup of the right type. The reconditioning work you did on that Potts looks spot on. :-)

That must be mine. It has my name on it (my surname). I wondered where I left it. LOL

Hi John on your nano tec motor do you have a 3phase supply or an inverter cheers

You call that to post that you put on your lathe at 2 minutes and 30 seconds

john please can you give me the model number of your nanotech motor cheers john