hello everybody i have just registered and congrats on providing this great forum where i too will try and help out where i can.
for the moment though i am experiencing a couple of issues where i have absolutely no control whatsoever of the alleged 775 spindle motor in this hobby machine.
firstly i had to build this machine without any instructions or plans or anything as it simply didn't come with any in the box, although everything to build it was there i managed to build it just from looking at images of it. i have used it to make some coasters out of pine and also a plaque i made for my daughter v-carved. anyway on to the problems i have....i am not happy that this spindle operates at one speed which is quite slow that i can almost slow it down to a stop by placing my finger on the spindle motor's rear end. the control board i have is pictured in this post. i am running grbl 0.8 and i have already tried grbl 0.9 and still no spindle control also this control board takes two power supplies one which is 24v in for the motor allegedly and 12v for the X and Y servos.
perhaps someone can assist or advise and any more information needed i am happy to give you