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pre drilling a hole will reduce the amount of work the end mill has to do, also it aids with chip evacuation and in your situation would help with end mill life - you can start milling from the side...

These are not serial plugs, they are simply connectors - you just need to open then up to see which pins are connected to which wire in the stepper. once youve done this - any stepper driver will...

Mach3 can use certain usb controllers, however you'll probably find that the one supplied is for another type of controller software such as you said - USBCNC.

Ethernet motion controllers are...

Its basically a pcb drilling head, I was wondering about modifying a normal (cheap) VFD as it's only 500 Watts.

It'll be great for my engraving.. Lol

Manufacturer has closed shop so no details about it unfortunately.

I'll probably end up making an inverter VFD to run it.

Hi - I'm looking for a VFD that will cope with 3333hz - It's to run a 200k rpm .5kw spindle.

Any ideas on suitable models?

M