Hi folks,

Relative noob to CNC here, after 20 yrs. of manual woodworking/machining.

I have a kit machine (Routakit...beware!) with a generic Chinese spindle/VFD combo.
It's the square bodied 1.6kw air cooled unit that can be found on eBay and elsewhere.

Anyway - I hooked it up and programmed according to the (poor) instructions from Routakit,
and the spindle only gets to 12k, half of the 24k it should be reaching at full speed.

I have been through reprogramming the VFD several times but nothing seems to do it.
Can anyone walk me through diagnosing this thing?

My first guess was the motor pole parameter (2 vs. 4) but I am programming it according to recommended settings.

Also, the spindle spins backwards. Assuming I can just switch any two legs on the VFD output to fix that?
(I have been just pressing the "Rev" switch on the drive to make it run, but that's annoying.)

Many thanks in advance!