Hi, I've bought a 3D touch for my new Geeetech a10 (2650 V4 board) but I've not found instructions about connecting it to the extruder board.I've found this:
http://www.geeetech.com/forum/viewtopic.php?t=68539
but it's for a previous model. The instructions that are in the product page if for conecting it directly to the main board, but these boards are previous versions. Do you have any updated manual? Thanks.