I had to create a temporary spacer ring to mount the 43mm spindle. This is the DI mode, so no manual speed control. It won’t even turn on unless the controller tells it to. Because I was unable to find instructions on how to setup the spindle control, I fudged my way through till it started working. I’ll upload a video later. 0-10v (green wire) to xpro v4 variable spindle terminal block 0-26v wire to 24v output on the other side of the board 0V wire (that is how their manual identifies it) to analogue ground it spins up, but I’m not sure if it is due to no load, it revs up and down in speeds (video will show) constantly. Since I forgot to order the Er16 1/8 and 1/4 collet (comes with 8mm) I cannot test any cuts till Monday I guess (soonest Amazon can deliver a set). And I don’t have any 8mm bits.