Filament Relay Pulley/Guide Attachment for Prusa Spool Holder - 624 SKF Bearing
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I designed this pulley system so that I could print large 2kg+ spools.
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- Printables
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- Creative Commons — Attribution — Noncommercial — Share Alike
I designed this pulley system so that I could print large 2kg+ spools. It is easy to put together, requires only one mechanical component (a bearing) and attaches onto the existing Prusa spool holder saving material and print time (1h).
You will need:
2 x 624 SKF Bearing
Build Instructions:
- Insert one or preferably two 624 SKF bearings into the pulley.
- Hold the pulley within the spool holder attachment enclosure and push the shaft through the enclosure, pulley and then into the recess in the enclosure. There should be sufficient friction to prevent the shaft from coming out.
- Push the shaft on the housing into the side of the Prusa spool holder and you are ready to print.
Tip
If you are not using maximum z height you can also flip the Prusa spool holder around and the filament will come down in line with the X carriage. See the second image.
Credits
The adjustable spool holder seen in the background is the following design by cisardom modified from Mikolas Zuza:
Thiniverse Link to Adjustable Spool Holder
Thanks for checking out my design and enjoy! Stay safe!
Print instructions
I have included a 3mf of the build settings I used.
Quick Summary:
Layer Height: 0.3 mm
Supports: Support on build plate only
Infill: 40%
Print Speed: 50 mm/s using 160% speed for effective 80 mm/s
Print Time: 1 hour