Itty Bitty Double Extruder

[voodoo28]

wow...40 mm/s wouldnt even work for me, much less 100.

Yes. 2.7 ohms.

I'm printing at 100 mm/s maximum.

[voodoo28]

Im getting 2.7 ohms from both coils...
Crap....I dont know what else to do.

[printbus]

Maybe try configuring for less micro-stepping? Does your board support that? If so, that should give you more torque.

[voodoo28]

You mean Change it from 16 to 8?

[printbus]

Yes. Might not help enough, but it'd be something to try.

[voodoo28]

..Yup, just did...no go.

[printbus]

Did you also reduce the steps per mm by one half as well?

[voodoo28]

i have them set to 644.2
should i go to 322.1?

...never mind ,tried that just now and still same.

I wonder is it me?
I am able to make it skip while holding the shaft.. How much torque does 20 oz really feel like?
If the motor is active and set to the same values you guys have (100) I can turn the shaft just as easy as if the motor was off..

[printbus]

Ok, well it was an idea.

[kd7eir]

Extruder question -

I have both extruders wired as follows BLK->1A, GRN->1B, RED->2A, BLU->2B. This matches what Polulo recommends - Coil A=BLK, Coil C=GRN, Coil B=RED, Coil D=BLU. Neither of the extruders will move. If I plug my old NEMA17 extruder in it works fine. Continuity test indicates that the wiring is correct. Any suggestions?