Pastamatic Filament Spool Winder for Bambu X1C/P1P AMS (level winder with self reversing leadscrew)

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I tried another spool winder but found it finicky and delicate. I designed this winder from scratch to be simple and robust, using the same self reversing leadscrew mechanism found on industrial cable winders Why pick this model: • Prints on a single build plate • Doesn't require heat set inserts or exotic hardware • Fusion and STEP files are available, remixes welcomed • Generous clearances, simple mechanisms • Designed to be a tool, not a project Print time: • ~500 grams of filament • ~22 hours on Bambu Lab X1 • ~5 minute assembly • ~2 minute spool transfer Hardware requirements: • 14x 608 skate bearings • A scrap of PTFE tubing • An electric screwdriver or drill with a bit cut from ¼ inch hex stock (most cheap quick change Philips bits in the US fit this requirement) Print settings: • Any. I used "0.16mm Optimal" in BambuSlicer with 5% adaptive cubic infill • Use 100% concentric infill for spindle_male_driven • Try the STLs if you have a problem with the 3mf files. I’ve added (xN) to each file name so you know how many to print Materials: • Any. I used Polyterra and iiidmax PLA+ • Use TPU for tpu_consumable_wiper_blade. I used Priline 98a. The wiper blades aren’t 100% required but they help keep the windings nice and tight Assembly and usage: • Demo video • Assembly video • The side that says “Pastamatic" needs to face outwards, away from the spool • The filament needs to come in under the target spool, like this: O____O • [not like this: O‾”‾”‾”O] • The drill/driver needs to run clockwise, as though you're screwing something in • Accelerate slowly until the winder gets started Change log • 2023-05-28 • Initial release • 2023-05-29 • Fix a minor export glitch in "leadscrew_tooth" • Increase the number of “pin_short” instances in the 3mf from 6x to 8x • 2023-05-30 • Add a second prearranged 3mf with two plates to avoid overlap warnings • Disable autogenerated brims for the single plate 3mf • Add STLs for people who have trouble