Wanhao i3: Ramps, Rasp Pi, and Mosfet Control Box Combo Adapter by OmNomNomagon 3d model
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Wanhao i3: Ramps, Rasp Pi, and Mosfet Control Box Combo Adapter  by OmNomNomagon

Wanhao i3: Ramps, Rasp Pi, and Mosfet Control Box Combo Adapter by OmNomNomagon

by Thingiverse
Last crawled date: 3 years, 1 month ago
An adapter for the Wanhao I3 control box to upgrad the original Melzi electronics. This allows a Ramps1.4, a Raspberry Pi 2/3, and a mosfet to fit snugly into the existing control box.
I used this Mosfet
It is more than capable of handling the heatbed current. Any moset with a spacing of 38mm x 63mm will fit without issues.
The Adaptor fits on top of the existing mounting holes and is secured with M3 screws and washers. Everything can be mounted with M3 screws.
I also recommend switching out the rear fan with an 120mm adaptor to keep everything cool.
If you use a RepRapDiscount Full Graphic Smart Controller such as the one in this ramps kit, it is a drop in replacement for the old Melzi LCD. The SD card is built into the screen so you will loose the ability to switch out SD cards, however this is not really an issue if you also are also moving to Octopi.
I also recommend this Ramps guide

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