BiQu B1 H2 Mount Kit w/stock dual 4010 fan ducts

I upgraded to a Bigtreetech H2 V2 direct drive extruder on my BiQu B1 and couldn't find anything that suited my desires for mounting positions of the head and cooling ducts. I also didn't want to have to purchase additional hardware or fans. Seems all the available designs for cooling ducts either required a fan other than the stock 4010's or blocked the view of the nozzle or use of the filament loading wheel. A major inconvenience! You will need to swap out the cooling fan connector as the one that is included with the H2V2 will be too long to mount the head properly. I took the one off the old extruder cooling fan.

I modified this design https://www.thingiverse.com/thing:4743701 for the mounting plate. Made it so the print starting position was maintained same as original. You won't have to modify any firmware or code to a new start location. You will need two 2 mm spacers/washers for the top screws of the daughter board to prevent the ends of the screws from protruding through the mount. I just printed 2mm high inserts from the BiQu B1 hot end fix, [https://www.thingiverse.com/thing:4626617/files. They work perfect.

The fan ducts are remixes and combinations of two other designs. I borrowed the ducts from https://www.thingiverse.com/thing:[5150647](url) and the mounting plate from [https://www.thingiverse.com/thing:5150647. These will work on any orientation of the heat block.

Lay models flat in your slicer as they are a few mm elevated. Also, aftermarket fans may require you to trim the small tabs that hold the fan bottoms in place.

I am sure the designs could use some cosmetic clean up/improvement but, the functionality is fantastic.

5/20/2023 I cleaned up and improved the print process of both the ducts. They will now lay flat without help and I trimmed the bottoms to clean them up and provide more clearance when printing. So, if you downloaded prior to this date you will probably want to redo.

Also, if these are working for you please leave a like so others will have more confidence to give them a try. Thanks!