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wiring power to mini kossel with heating bed

Posted by cprelot

cprelot

wiring power to mini kossel with heating bed
February 28, 2016 05:45PM

Registered: 8 years ago
Posts: 3

Hi,
I have a new mini kossel with ramps 1.4 and a heating bed
i have a 12v power supply 20A

Should I need to power the bed from the power supply to the +10A side of the board
And have another power supply wired to the +5A side of the board
Or can I use the same power supply and have 4 wired the the ramp board
Thanks

Reply Quote

nebbian

Re: wiring power to mini kossel with heating bed
February 29, 2016 01:43AM

Registered: 8 years ago
Posts: 916

The same power supply should be able to supply both.

However you might need a fan blowing on the polyfuses, because they do get quite hot and will shut down the power if you aren't careful.

Lots of people replace the polyfuses with an external automotive fuse, plus a relay or SSR to switch the high current bed.