About This File
The stock exhaust housing requires alot of stand-off distance from the wall, behind the printer. Also, unless the radius of the Bowden tube loop is kept pretty big, it causes quite a bit of feeding friction between the filament and the inside of the Bowden tube. I modified the stock exhaust housing to allow for a more direct entry.
Using this version, I am able to run my CW1 extruder with a lower tension setting for my drive roller. Oddly, it improved my vertical wall surface finish too. I'm not sure how/why this would improve the surface finish, but the difference was noticeable.
It requires two additional m3 heat-set inserts for the guide/funnel mounting location. The guide/funnel attaches via two M3x6mm socket head cap screws.
If you print and use one of these, feel free to post a make, and give me a like either here, or on Printables.
I'm working on a filament run out sensor version of the tube guide. It will use the KW12-3 roller type microswitch. I'll post the model when I get it finished.