I swapped a pair of the spindle wires and fixed my running backwards problem. I did a few small gears for a TT motor out of aluminum documented below. Keep in mind i'm only running on a single 20mm rail on the Y axis and 2.5 x .25" aluminum square tube. I'm very happy with the surface finish and the new spindle. My current issues are:
1. VFD is loud! I have it wired to a plug now and I think I need to get a switch setup. Anyone have advice on making the VFD silent?
2. I'm still not sure how to do the table have it waterproof, flat, and keep the weight down. I want a quick and easy way to get the vice installed and or a way to keep it installed. I'm thinking a deck above it for large flat stock.
3. I need to redo the Y Gantry with the 4" steel square tube. I'm scared to mill it. How much can you mill off a square tube before you cause issues with the tension? I had tried a 1.5mm cut previously and it bowed about 5mm.
4. I need to make an enclosure once I make the frame attachments permanent.
5. The DRV8825's and GRBL board are doing very well. Long term I'd like to make a pcb for g2core and run a 32bit processor but it works pretty well and if it ain't broke!? Anyone have ideas on how worth the effort g2core is? On a side note I"m running klipper firmware on my 3d printer and wow does it make it go fast. I wonder if the klipper approach would also help cnc machines with 8 bit processors?
6. The vise I have on there is garbage. Once I get the table figured out I need to relegate that POS to the drill press.
7. I'm a bit concerned about my compressor's ability to keep up. I also bought a solenoid to control the air and I was thinking of a 50% duty cycle of fast air pufs vs a steady stream of air. Has anyone tried this approach?