Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4911957.

Lattice frame to mount a BTT SKR Mini E3 V2 controller in the Wanhao i3 Plus. No need to rewire everything to the hot-end, You can continue to use the stock ribbon cable. All that is needed is to buy a second ribbon cable breakout board and use that inside the base to convert the ribbon back into standard connectors. The breakout board is available from several sources online, but I use the Ultimate 3D Printing Store.

https://ultimate3dprintingstore.com/collections/wanhao-temp/products/wanhao-d9-splitter-board-upgrade

The metal L brace that that separates the Y axis belt from the Melzi control board can either be removed, or in my case I re-drilled it to move the brace closer to the belt to make room for the lattice frame and the BTT SKR controller.

The lattice frame will hold the following • BigtreeTech SKR Mini E3 V2 controller (or equivalent) • Mosfet for bed power • Wanhao I3 Plus ribbon cable breakout board • 4020 or 5015 blower fan • Micro to standard SD card reader • Micro USB to female USB cable