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snowygrouch

Steppers in slave mode

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Posted · Steppers in slave mode

Hi,

Is it possible to run two steppers for each of the X and Y axis ? With the standard UMaker

electronics ?

So two slaved pairs, just considering some possible alternative drive arrangements.

Any thoughts on that ?

C.

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Posted · Steppers in slave mode

Should be able to put a second one with each coil in series with the same coil of the first motor.

The stepper driver should still drive them with the same current as determined by the trim pot.

It will just require more volts to to achieve which is covered by the 19V applied.

The time taken to reach the current should be a bit longer.

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Posted · Steppers in slave mode

Hi Owen,

Thanks for the response, so it seems probably do-able but that the potential accelerations will be

somewhat reduced due to longer current ramp up ?

C.

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Posted · Steppers in slave mode

You could also piggy-back 2 stepperdrivers on top of each other, connecting everything except the motor outputs to eachother. This will work fine.

Also, Marlin does have the feature to use 2 stepper drivers for the Z, but not for the X or Y. (The kamermaker uses the 2nd extruder driver as extra Z stepper)

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Posted · Steppers in slave mode

Hi Daid,

Ok thanks for the info, regarding a piggyback of the stepper drivers; would the standard power

supply be up to powering an extra stepper for the X and the Y axis ?

Regards

C.

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Posted · Steppers in slave mode
Hi Owen,

Thanks for the response, so it seems probably do-able but that the potential accelerations will be

somewhat reduced due to longer current ramp up ?

C.

THey'd take longer to Ramp up but if they were working together they shoul still be stronger

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Posted · Steppers in slave mode
Hi Daid,

Ok thanks for the info, regarding a piggyback of the stepper drivers; would the standard power

supply be up to powering an extra stepper for the X and the Y axis ?

Regards

C.

Yes, the steppers use less power then the heater, and the powersupply can supply two heaters and 5 steppers fine at the same time. So 1 heater and 6 steppers shouldn't be any issue.

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