A compact and versatile programmable power feed for my mill 

This only works well if both holes have the same diameter, and of course you need a digital caliper.

Thank you Dave 😊

Îți mulțumesc pentru cuvintele amabile!

Thanks! I considered a small 24V DC electromagnetic clutch, but in this case it turned out to be really unnecessary.

Thank You!

Thanks Colin 🙂

See my anser to @wibblywobblyidiotvision

Make sure you also watch the older video if you want more background information.

I have watched this video and the previous one a few times , I think it’s sunk in mostly but I would like to add limit switch any suggestions as to how to wire it in ? Sorry to ask but I restore antique clocks and am in no way electronic minded. Thanks in advance Dell

Ignore my last message I see you answered it already enable - but dose that enable or disable because my micro switch has both. But can I ask why the four wires to the on/off switch.

​@@torsiondell The on/off switch turns the power on and off, that makes sense. But the circuit between the coils of the motor and the stepper driver is also interrupted by this switch. If you didn't do that, and you turn the hand wheel while the feed is not being used, you also turn the motor shaft and then the motor generates energy, like a dynamo. That energy is then supplied back to the driver, which can be harmful to the driver's electronics. Moreover, without being completely switched off, the motor offers more resistance to rotation.

@@Michel-Uphoff thanks for the explanation so what do you connect the other two terminals to and what switch would I need to get ? Sorry to ask so many questions but you seem to know what you are doing unlike a lot on RU-vid

Do you have a better proposal?

Please do not present your opinion as a fact, that's rude. Michel may have good reasons for doing it this way, why don't you ask before you judge?

Ok, als je vragen hebt laat maar weten.

This one costed me €27. Search Aliexpress for comparable controllers priced €15, even less

See: nl.aliexpress.com/item/1005005029141856.html (€ 14,66) Don't know if this link works in your country, otherwise google for: ZK-SMC02

I did. Read the pinned comment

It's a stepper motor. Torque is highest at low rpm. Although limit switches would be very easy to implement (a signal to EN- is sufficient), I don't need them. The stepper motor simply stops at the ends of the table without problems and the rattling sound will warn me I wasn't paying attention. But more convenient, I can specify the travel distance, and whether to stop or reverse after that distance. The spindle has 2 mm pitch, and the stepper has 200 steps per revolution. So a hundred steps is exactly one mm. I just tell the controller to generate 10357 pulses and the table will travel 103.57 mm and comes to a halt (or returns).