Biqu B1 - Biqu H2 V2S dragchain mount

thingiverse

This is a Work in ProgressI dont like the mount that Bigtreetech suggests, thanks to Zaurko & Bart Geldof for the inspirationThis mount is the least destructive way to install the H2 Extruder to the B1. You can use the same PCB daughterboard and USB-C cable, same X end switch and same 4010 fans.I added perforations for 10x10mm drag chains. But I would suggest something slightly bigger to help with cabling. So these might change.In this first version, expect the fan duct to heat, warp and smell a little since it touches the silicon on the heating block. I expect to change the ducts in the futureI like to park my printer a little outside of the hot bed so the filament has space to ooze while heating and I have enough space to clean the nozzlePrinted in PETG no supports required if you have the correct bridge settingsYou will require the next material:2 meters of Red and Black cablex4 female 2pin JST connectorsJST connector crimperx2 M3*12 screwsx11 M3*8 screwsx2 M4*8 screwsx1 M5*12 screw45cm 10x10 nylon drag chain2mm heatshrink6mm heatshrinkReuse fan M2 screws to mount fans to new ductNecessary modifications:Shorten the hotend fanShorten the heat cartridge cables and add JST connectorAdd cable to your existing 410 part cooling fan cables and add JST connector (You can also use other fan ducts from Zauruko for different size fans)Extend the preinstalled extruder motor cable (Note that if you go color by color the extruder will be reversed, that can be fixed by swapping the polarity, using negative number of steps or changing the firmware)BL touch offset - X=40.95 Y=-26.3define NOZZLE_TO_PROBE_OFFSET { 40.95, -26.3, -1.5 }