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Finally, today I managed to release my new Probe screen, the version 3. The files include a simpler installation procedure than the one before, as well as a modified RUN tab, which is optional, if...

Just stumbled in some new interesting boards, Russian maybe. here is the most interesting one price wise http://www.pv-automation.com/products/mycnc-et6 and there are some other offline versions...

Speeds and feeds are not far off and good point to start. I'd play with DOC to see how your machine handles different depths. 3mm on 6mm tool is little agressive for this type of machine and high...

You'll never get nice finish on slotting profile toolpath without using Finish pass. So leave material offset and do full depth 0.2mm finish pass.

Best way is to do what you've done, try...ask...listen then try again, ultimately only you'll know what works for your machine best which you'll find by trial and error. You'll snap bits, ruin work...

Bottom of p125 - set "forward priority". Connect "run" output to "rev" input and "dir" output to "for" input. Now F in UCCNC will run one way and R will run the other way. Wire the spindle so that...

To do tapping you would need an encoder with index and A + B pulses. But the problem is the spindle will not have enough torque and at low speeds.

Clive's comments are very valid, especially as this is a somewhat random problem.

Couple of points to make, though.

There are a few parameters in the VFD that control how it drives the spindle....

TM This could be rf noise coming from the spindle or vfd Do you have screen cable between the two. If not just ground the screen at one end.

You have the BOB 12V pin connected to the 10V output pin on the VFD. This definitely looks wrong. No connection needed here.

Otherwise, analogue out and ground pins look fine. From the data you...

If that's how you've wired it, then you still need some way of turning the spindle on.

Usually you'd do that by using one of the digital inputs, and have that programmed to turn the motor on...