Power supply help

[JAZZCNC]

As for the gantry I have another motor ordered for the other side so I prob will need some help on getting the wiring sorted for it. Also you have mentioned the drivers are no good, which ones do you recommend if theses ones blow.

Dave this highlights my point perfectly.? . . .One mistake people often make is just rushing out and buying parts without really knowing what there buying.

For instance you say you have ordered another motor but I bet you have no idea other than probably the Nm rating to the spec of the motor.?

Not all motors are equal even if they have the same Nm rating. There are specs that make a huge difference to how motors perform and 99% of time Cheap motors, like those supplied with cheap drives like the TB based drives are perfect examples of this.

The relationship between Motor spec and Drive spec is critical to good reliable system. Cheap motors, well actually no cheap is the wrong word because you can buy motors that are cheap and still good.! Poor spec motors is better word. These motors typicly have high inductance which massively affects how they perform and impacts on the whole system, voltage required, affects of resonance everything. This follows into the drives and affects how they perform and deal with things.
So it's very important Motors, drives and voltage are all balanced and suit each other.

For this reason I won't recommending any drives without knowing more about the motors. No point having Great drives if your running high inductance motors with only 36v. Best drive in the world won't make much difference other than reliabilty.

My suggestion is if, well when, the drives blow up you do a complete upgrade and re think of the machine electronics because better drives won't do much for performance if your running high inductance and low volts.

Better still bite the bullet now and do it right from the start. This will save you money long term and pain in the short term because that's all that's in store for you now with these drives and low voltage. Which you will endup replacing sooner or later and often they are dead so have no resale value.!

This size and style of machine needs good electronics sized correctly other wise your always going to be smacking your head against the wall.
The fact your using R&P with no ratio complicates things further and makes it difficult to advise until you come to better setup with a ratio.

All I can say with certainty is that those crappy drives and 36v won't be much use for R&P and better drives won't help unless the rest matches.