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

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 with the 3mf
• 2023-06-03
  • Add a ring to passive_target_cradle to prevent the far end of the target spool lifting if a user lets the the drill hang loose
  • Add a pin to driven_target_cradle prevent the leadscrew popping out
  • Fix a minor clearance issue where a dovetail didn't fit quite right
• 2023-06-05
  • Revert passive_target_cradle to the old drop-in style
  • Posted a spindle retention clip as a remix
• 2023-09-30
  • Reduce chamfer on the crossbars to prevent them falling over when bed adhesion is poor
  • Add some holes to the crossbars to make them easier to screw down
  • Add some popular acessories to the all-in-one .3mf

How to contribute:

• Post your make, it keeps me motivated to improve the model when I see people using it!
• Post your feedback, idea or remix in the comments!
• There are a few improvements and accessories in development as remixes, check those out if you‘re up for the alpha/beta tester experience
  • Adapter for 37mm gear motor
  • Source spool holder for 5 KG spools

Credits:

• @MiklosKiszely_486882 for the original idea
• @Psycho Shaft for the drag/tensioner concept
• thang010146 for YouTube videos of mechanical mechanisms, particularly the self reversing leadscrew for a level cable winder