Roland Benner

Hi Meduza, this gearbox is really fantastic. I use 2 of them because of my dual head. The gearbox is 2cm high, to avoid collision with spools I had to swap left and right hand feeders. Load spring and lever open/close looking to outside now. That's amazing, because I found that the knurled relief on the filament is looking to inside of the bowden, tha t reduce the friction in the Bowden. Of course I had to reverse feeder in firmware. Thank you Roland

I used polycarbonate for printing this shroud. Heated bed full on 107~110°, cover the top, buildtack on table of the printer and you get no warping. https://www.filamentworld.de/shop/filament-3d-drucker/pc-filament-3-mm-schwarz/

The fan shroud can not be printed with PLA because it has to widstand high temperature in printing process. I'm printing parts in polymaker PC-Plus , heated bed on 110° print temperature 270°. This part fits into standard UM2 head equipped with Olsson block or with my own heater blocks.