need help setting up, and troubleshooting config for a 48" X 48" X 5" router

andypugh wrote: More volts should help. In the meantime try lowering the voltage and acceleration until the machine doesn't stall.

I think Andy meant to say "In the meantime try lowering the velocity and acceleration until the machine doesn't stall."

Err, yes, that.

I just got home from work, so give me a moment to cool down before i go out to my hot shop.

something that occurred to me, i wonder if my breakout board isn't common cathode, as i have it wired, but may actually be common anode... it really gave no information with it, so i made assumptions. when i head out, i will bring my digital scope and see what kind of signal i am really sending to my drivers. maybe it needs a pull-up or pull-down resistor (along with the current limiter for the optos).

~Travis

ok, here is what i found. first of all, apparently my WiFi does not reach my workshop (Doh!). secondly, slowing down the velocity and acceleration proved successful, though it is still weak in the strength category. i can stall the axis with my hand, with no risk of injury. i still suspect the Chinese drivers are not performing up to the needs. i have some Leadshine DM542E drivers on order.

as far as the correct signals coming from my breakout board, they scoped out to be fine. and i already had the Amp Enable pin inverted.

I still have noise, but i haven't finalized the circuits into a cabinet yet, nor do i have shielded twisted-pair for the digital signals yet. it is still in test-rig stage right now. i suspect it may also be from the PC power supply i am using for the 5Vdc source for the breakout board.

~Travis

[quote="travis036" post=94743I still have noise, but i haven't finalized the circuits into a cabinet yet, nor do i have shielded twisted-pair for the digital signals yet. it is still in test-rig stage right now. i suspect it may also be from the PC power supply i am using for the 5Vdc source for the breakout board.[/quote]


Possibly the breakout and parallel port are not referencing signals to a common 0V reference. It might be better so steal 5V from a USB port.

Hmm, i will check that later after work.

I did get the power supplies yesterday, so if i get a chance, i will wire them up, after i verify proper operation.

~Travis