| Electronics > Projects, Designs, and Technical Stuff |
| Right motors, PSU for CNC mill |
| (1/8) > >> |
| 3dgeo:
Hello, I know this is probably a bit out of topic but I'm making DIY CNC (100x100 modified WorkBee) and don't know what motors should I buy: Nema23 23HS2430B 3A 112mm 1.7 Kg OR Nema23 23HS8430B 3A 76mm 1.2 Kg Will TB6600 drivers be sufficient for those motors? I probably will be using standard T8 2mm leadscrew. I want to mill thick aluminum with this CNC. Thanks in advance. |
| jmelson:
The second motor has half the inductance, which means the same driver at the same DC supply voltage can spin it about twice as fast. As to which motor provides the desired running torque at the speed you want, that is harder to extrapolate from the given data. Note that steppers have WAY less running torque that their holding torque rating. If you can find a graph of running torque for these motors with a specific driver and supply voltage, then you can make intelligent comparisons. Jon |
| 3dgeo:
As far as I know all similar CNC uses 2nd (smaller) motors, but motors prices are similar enough to consider bigger motors if it will give any additional benefits. I'm thinking that weight might be an issue if I'll go with bigger motors. To be honest I think both motors have enough torque to do the job. |
| patrick1:
cool project, so are you using the existing control board ?, and adding breakout board aftermarket drivers too accommodate for the larger motors, - if so, - how too you set a larger bed size for the board ?, or can this just be done in the slicer ? |
| 3dgeo:
It's not a 3D printer, it's a CNC mill. I'm also making Prusa MK3 clone, tho this is not it. For now as a control board I'll use any compatible Arduino I have on hand and connect it directly to stepper drivers, later I want to make my own control/driver board with advanced drivers, like Prusas printer has, but beefier so they can drive Nema23. Looks like there is no CNC mill board with advanced drivers like that, so this might be a good product to sell as well. |
| Navigation |
| Message Index |
| Next page |