I assembled the MK3 Prusa 3D printer in 2018 and after about a year, I created this encloser to contain the fumes, provide a stable ambient temperature, better lighting, and a large storage area for up to 15 different spools underneath
Around this time I also upgraded it with the multi material attachment that let me switch between 5 filaments. Since the attachment required a buffer zone I decided to turn the bottom section of the encloser to a storage, feeding, and buffer for the printer. It fed the material through the platform the printer sat on (to keep all filament in one area, its easier to keep it dry). I made custom mounts for the PTFE tubes and guides for the filament in the platform. This design worked for a while but started having issue due to the friction being to high to pull through all the tubing and guides. This caused the feed roller to strip the filament and jamming the printer.
I got tubes with larger IDs to reduce the friction, but ultimately the way I designed the storage and buffer system made it to difficult to meaningfully change the friction. I ended up going back to running a single filament at a time and using the space underneath as storage only. I also had no need for multi material printing, and only used that system once to print name tags. If I ever need to do multi material prints I will come up with a solution. Probably would be best to feed it from the top right above the attachment. It would be the shortest distance the filament has to travel and room to buffer. Below are some images of the printer and the multi material attachment. Below that are images of some prints.
Robot arm
RC plane
Intakes for FSAE car
Phone holder for Subaru
Custom puzzle
My design of a futuristic fighter jet
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