BIQU H2 complete Kit for B1 single 4020 Fan - V2.1

update 4.7.2021:
check the 2 pictures of how to slice/print, sideway's down, with customsupport (and treesupport if you use cura) for best layeradhesion against the load direction...
and use 4 or 5 walls and same amount for top/bottom layers... and use around 50% grid infill for best strengh!

Update: 27.5.2021:
i've uploaded ah new bltouch mount, that connects back to the mainbody, rightnow you need to drill the body and selftap screws there, i did this also and it also works perfectly... but i'd might add screwholes in the mainbody later and reupload the new part than...

there is also new "Voron-Style" Fanduct as different fanduct option, you can choose yourselfe what you like more... the original one has ah ring cooler, that should be theoretically better as Air should get around the nozzle, the Voron style is ratter blowing from the sides... you see on of the first Versions in my picture, i did stiffen up the mounting plate, so normally the tape should be needed, but still i would like to add some mount back to the bltouch hold but not done yet...

This is my Single 4020 Fan Version of the H2 Extruder for the B1!

Basically after using the dual Fan version a bit before i broke the mount while trying to get UPS Modul to work, what ultimately crashed down to the print while resume it, i decided to redo the mount... bring the Extruder closer too the X axis, and eliminate possible Z-Wobble from the Printhead, as the long level with the far away hangig extruder introduced...

So with that no change to fit a fan inbetween extruder and hotend PCB... one idea was to put the second 4010 to the bottom of the extruder in a very steep angle... i'd might develope this design further as an alternative Design to the dual4010 V1...

as i mostly print PETG and ABS/ASA now, i am sure the Single 4020 Tower Fan will be more then enough to get proper partcooling from the single fan!

I am using Lukes UBL Firmware, though you might need to make some changes to the source code, as the 3 point probing does not work correctly... i've disabled the 3point probe points defines, and just set the PROBING_MARGIN_BACK to 20
you also need need to set the Probe Offset correctly!!
My Offset (with 1mm BLTouch spacer) is: X -35 / Y -6,5 / Z -2 ( but you need to check Z before first print!!)

you also need to set the Home offset, as the nozzle sits a little bit more to the front then the stock nozzle! You can do this with M206 or just set it with the machine parameters (in latest tft firmware there should be an option to change Home offset) and i give there Y an -7