Re: Can Motors with Different AMP Draws be Mixed in One Machine?

Aha! Thank you NoobMan! I'm getting it.

I have not bought the motors yet so I looked for different ones. I found a larger and a smaller motor from the same company both rated 1.68A

Larger Motor

- Motor length: 48mm
- Rated voltage: 2.8V
- Current/phase: 1.68A
- Resistance/phase: 1.65Ω
- Inductance/phase: 2.8mH
- Holding torque: 4.4kg.cm
- Mass: 0.35kg

Smaller Motor

- Motor length: 40mm
- Rated voltage: 2.8V
- Current/phase: 1.68A
- Resistance/phase: 1.65Ω
- Inductance/phase: 3.2mH
- Holding torque: 3.6kg.cm
- Mass: 0.28kg

Aside from size (and thus torque) they have identical specs EXCEPT the inductance/phase. The larger one is 3.2mH and the smaller is 2.8mH. Will that stop the two motors from being working together in one machine? Driven by the same stepper drivers?

I'm hoping so since I'd really like to use a smaller/lighter motor for the extruder. The smaller one has only 18% less holding torque and I am assuming that it will still drive the gears adequately.

Thanks again