Duet and 24v psu question

User-Generated tips and tricks for the Rostock Max, Orion, H1.1, or H1 Printers
buggy
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Location: everett, washington

Duet and 24v psu question

Postby buggy » Sat Mar 10, 2018 10:37 am

Hey guys now that i got my max v2 dialed in with my duet wifi, I wanted to tackle the slow bed heating due to the 12v psu. I was reading that the duet wifi is capable of both 12v and 24v so is it just as simple of swapping out the 12v psu for a 24v psu? I know with the rambo you had to use a ssr to step down the voltage for everything else but is that handled by the duet already? I would rather ask now than chancing burning up my board lol also is there a 24v psu that you guys would recommend? Thanks, Dan

dc42
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Re: Duet and 24v psu question

Postby dc42 » Sat Mar 10, 2018 12:12 pm

Bear in mind that a 24V PSU will produce four times the heating power of a 12V PSU. So if you do want to use a 24V PSU then I suggest you turn down the voltage on it as low as possible, which will probably be about 20V. Alternatively, use a 12V PSU turned up to its maximum - typically about 14V, which produces 36% more heating power.

If you change to 24V then you will need to change your extruder heater cartridge for a 24V one. Also, if you are using 12V fans then you will need to change them to 24V ones. It's possible to use a buck converter to generate 12V for the fans, but 24V fans are cheap so it's simpler to replace them.

HTH David

buggy
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Posts: 63
Joined: Sun Jan 17, 2016 8:05 pm
Location: everett, washington

Re: Duet and 24v psu question

Postby buggy » Sat Mar 10, 2018 12:36 pm

Awesome that makes a lot of sense, wasnt sure how the board handled the voltage. Thanks for the fast response! Dan.


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