Tire for SILENT Auto-Rewinding Gravity Spoolholder
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This is an add-on for a.m. spoolholder for an MMU-device, or ERCF.
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
David Glaze reworked Michal Fanta's original Gravity Spoolholder for MMU2S, which rolls the spool up a ramp while filament is being dispensed and takes up the slack when the filament is retracted by letting it roll back down the ramp. David introduced the Silent Mod which means there will be not klacks or clunks as he introduced the friction part of the spooler with a Lego based tire.
As I could not wait for getting the right tire from a shop I decided to design my tire. An ordinary tire from Thingiverse (tyre-light by mixtec) and modified it to the spooler needs.
I printed the tires with
- TPU 90Sh(A) which turned out too slippery on the ascending track, no grip.
- ColorFabb (red) varioShore in approx. 60Sh(A), but surface was too slippery too, no grip.
- Filaflex 60Sh(A) black. This one turned out good. You need to print very very slowly, bondtech gears not strongly engaged. Not all printers can perform this filament. I did not use a bowden to guide the filament, but I put the roll on a ball bearings axle and let the extruder (LGX lite) draw the filament slowly. Result is excellent, it works fine! No need to buy Lego. Two tires printed 100 minutes, 18-20mm/sec max.
I tried it out with a very empty roll and it worked perfectly.
Credits to Michal Fanta for the great main idea (functional parts), to David Glaze (silent mode), to mixtec (tire).
Explore my other Printables: https://www.printables.com/de/@Tritschi