alright, all finished! The new board arrives and I was too excited to wait until the new fuses arrived, so I pulled the old motor off the drill press and put the new set up on.
bottom half before joining. It's fairly crowded in there. Wire on the bottom right is for the tach head, black and red wires at the top left are AC wires for the tach power supply. Both those wires and the power wires for the sockets near the motor are tapped into the AC wires downstream of the main switch on the left.
back of the front panel. The DC + and - wires come off the top two poles of the reversing switch in the middle - the 2 middle wires come from the board. Board power switch is on the bottom left, tach power supply (120VAC -> 9VDC) is top left, tach is top right and speed pot is bottom right
I was just JUST able to plug the pot wires onto their posts (MC40 board is laid out opposite to the MC65 on my lathe). Then I realised that I still had to bolt the controller box to the drill press from the inside. That wasn't fun.
everything mounted up. Had to partially remove the clock spring to get to the bottom right screw on the controller box - doh!
close up of the motor and the socket box. There's enough movement in the original motor mount slots to access the top to pulleys of the intermediate pulley, which is really neat. Most likely it'll be left in the top one, just put it in the 2nd from top because it was easier for now.
Socket is wired and grounded to the main box switch, so turning off the box turns off the sockets, which I'm pretty chuffed about.
here it is, in all it's glory! Wire on the right is the tach reader head, pointing up at the underside of the spindle pulley where I glued a rare earth magnet. Worked fine in testing.
can't take it for a spin yet until the 10A fuses arrive. Trust me, I tried and immediately blew the 3A fuse (all I had in that size). Still, all the lights work and the tach works. Fuses should be here today, so I'll update the thread with speed ranges and first impressions. I'm super pleased that this is finally done!
John's helping me troubleshoot it, so fingers crossed. I have a couple of diodes I can swap in, but I want to figure out what went wrong first. The annoying thing is that I can't remember if this board or the one that I put in my lathe control box was the one I pulled from a working treadmill. I got them both last summer and I've forgotten a lot since then!
Just bought a new controller instead of trying to figure out what's wrong with it.
