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Mean Well LRS-350 PSU Hinged Cover for Prusa i3 Full Bear Upgrade

by fasteddy516 Feb 24, 2019
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Hey Fasteddy516.

Would you consider doing a lid with the following changes?

Remove the fuse holder and redesign the C14 power inlet to hold an C14 with a power panic board. Fuse is build into the C14

Here's a link of the part for viewing: https://www.amazon.ca/Prusa-Voltage-Switch-Wiring-Harness/dp/B07PM5HZS3/ref=sr_1_1?keywords=mk3+power+panic&qid=1558292249&s=gateway&sr=8-1


I would gladly attempt to make a lid that accommodates the MK3 power panic board, but I would need some fairly precise measurements on those parts. I don't have an MK3 myself, so it would be a "print it, try it, report back any issues" deal. If I can get measurements - and you're not in a huge hurry (I've got a lot on the go at the moment) - I can give it a shot.

What was the second switch used for? Looking for ideas. I didn't see mention of it's use unless I missed it.


I use the second switch as independent power control for my Prusa MMU2 - it lets me shut it down and run the printer in stock single-material mode without having to disconnect any cables. I honestly figured people would be inclined to start with the blank cover plate and customize it for different components, but I've heard from more people who have just used the same components that I did and found a use for the second switch.

A friend of mine printed a modified version of the cover (she mounted it outside of a Lack enclosure) and uses the second switch to control a 12V fume exhaust fan.

I've heard from a number of people who use the second switch to control power to LED lights around their printers.

im using your model as the base for my bench power supply base, the fact that you have provided the "source" file, is spot on, and the MW supply model was a nice bonus. i will finish and post it as a remix. even if i haven't printed it yet, this is what i was looking for.

Glad to hear it, and looking forward to seeing how the remix turns out!

Any cover the blocks the connections from prying fingers gets triple house points from me.

Making it even better with a modular power cable socket wins 2 more house points.

5 points for Gryffandor!