Quote from: jrslick22 on November 20, 2010, 06:01:10 PM

1. I have 2x 269oz 2x 387oz 2x 425oz step motors from PH http://homanndesigns.com/store/index.php?main_page=index&cPath=25 my plan was to use a 269 for my X axiz and the 387 for the Z axis is this the best option?

I would think so, but maybe the heaviest axis would be best with the biggest motor.

The 425oz are slower, ill try it and post the results.

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3. Is it possible to have a third axis that when enabled (with a switch) homes itself, then goes to the current z axis position, then mirrors  the z axis?

Not sure about this, would need more explanation of what its actually for and when its going to be used.


More on this coming soon, ill get it all straight in my head frist.

thx

Thanks for the reply Dan, I don't see how motor voltage makes a difference as long as the PSU is also 50v can you please explain.
2:1 is the motor the 2 or the 1?

thanks.

I don't see how motor voltage makes a difference as long as the PSU is also 50v can you please explain.

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I don't see how motor voltage makes a difference as long as the PSU is also 50v can you please explain.

High speed torque increases as the ratio of the motor power supply to coil voltage increases. Typically, voltage to the motors are between 4-10 times the motors stated value. If your motors are 5V, then 10x5=50, and then your drives are at their maximum rated voltage. If your motors are something like 20v, then 10X20= 200V, which is way more than the drive will handle. If it were me, I would look for something under 5v, and stay away from maxing out the drive.

http://www.gasspringstruts.co.uk
http://www.strutsdirect.co.uk
seems pretty reasonable from the small amount of browsing I done.