MOSFET Mounting Bracket - Wanhao i3, Monoprice Maker Select V2

by uwe999, published

MOSFET Mounting Bracket - Wanhao i3, Monoprice Maker Select V2 by uwe999 May 4, 2017
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One thing I didn't like about the original bracket was that it put the board at a slight angle. I changed that and also moved the MOSFET further back where there are less wires.

MOSFET wiring info: http://3dprinterwiki.info/wiki/wanhao-duplicator-i3/di3-advanced-mods/heatbed-terminal-burning-fix-with-mosfet-board/

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Worked well on my Maker Select V2. The only issue, and I would guess why the original bracket used the further stand-off, is that it causes the mini-usb connector to be slightly mis-aligned. I was able to crank it down a bit and get it to work. However, the standoffs would ideally be made slightly lower to accommodate. I might re-print it as my printer is currently having issues making clean holes / circles, so the print wasn't perfect, but produced a workable part. Once I figure out how to fix my circle problem, I will probably decrease the standoff height and give it another shot. Thanks for the part!

I have an older model Wanhao I3, the control box is a rectangular shape with no angled LCD screen, and the control board is mounted on it's side instead of the bottom, with the PSU being on the bottom.

Will this mounting bracket still work for my printer?

should i bother with 100% infill on this or just stick with 20?

Printed this out to mount the MOSFET I was installing for my new Maker Select v2 (angled about 38 degrees on the bed to make it fit). Only issue I had was trying mount it in the box where the screw mounts were slightly farther apart than the holes in the bracket. Ended up breaking one end of the bracket loose in order to get it to fit, but it was still attached enough to hold everything in place.

Thanks for the excellent part.

What type of screws do you need to mount the mosfet to the bracket?

I used spare screws that would secure a motherboard to the standoffs in a PC

Awesome. Thanks. I might have 1 or 2......kilos of those screws

Hey thanks for making this. The double sided tape I was using finally failed and I'm about to print this out now.

Great mount! thanks for it. Very easy install and only required screws for the mosfet board.

Comments deleted.

Are you printing on the mini or the Maker Select?

Maker Select V2 only. (Not v2.1)

Comments deleted.

you can rotate it 45 degrees to fit your built plate ;-)

you can rotate it 45 degrees to fit your built plate ;-)

Temperatures generally low enough to use PLA?

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This is prefect. I'll be doing the MOSFET mod sometime this weekend. In the future I'm thinking of adding a 2nd MOSFET to offload the hotend from the mainboard. I know it's only 2-3 amps max, but still better to put the strain on a $10 MOSFET. Do you think this could be modified for a double MOSFET mount?

uwe999, Thanks for the bracket. I printed it out and should have my Mosfet tomorrow!!!!!
@Dogs_n_Guns, I remixed uwe999's model to handle two mosfets. Have a look and let me know if that helps.

Double MOSFET Mounting Bracket