The Wanhao BL-Touch upgrade for the Wanhao D12-300 is easy to install and comes with all the necessary part to make it a plug and play install. This upgrade allows you to activate auto bed levelling on your D12-300.  Auto bed levelling measures the height of the bed at various points and compensates for height variance. 

To activate this upgrade on your printer, new firmware needs to be uploaded onto the board.  Please click here to download the firmware and instructions.