LR3 Kits Advice

  • Can 24V power supply be used with SKR Pro 1.2 as-is?
  • Is chopping firmware update required, or just recommended?
  • Is this a recommended enhancement to increase torque and reduce missed steps?
  • Can the Kit’s steppers and drivers handle, any lifetime, excessive heat concerns, and/or other issues to be aware of?

My V1E LR3 Kit came with a Kastar 12V 6A power supply, which works great. But…

I happen to have a Mean Well HLG-240H-24A 24V 10A lying around. So…

Given…

  • SKR Pro 1.2 User Manual says “… Motherboard parameters … Input voltage: DC12V- DC24V …”.
  • Misc forum post suggest switching power supply to 24V will work without firmware updates. For example 12v-vs-24v-powersupply-for-skr-pro-1-2 discussion.

Sounds like, switching power supply to 24V will work. But, if I additionally push firmware update, with chopping modified, that’ll enable rapid non-cutting movements to be configured faster.

But kit’s NEMA17 steppers spec says 4.2V, so I’m wondering whether changing to 24V has some cons I/we should be aware of.

Cheers!

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