Multiple Mechanism Auto-Rewind Spool Holder

thingiverse

A compact and reliable filament rewinder based on a linear counterweight mechanism that can be produced in just 11 hours of printing time. This filament management system eliminates the need for a space-wasting and difficult-to-load filament buffer, providing a complete solution. Many PTFE attachment options are supported, catering to various spool, MMU, and printer configurations. The rewinder supports filament spools with dimensions as follows: * Diameter up to 235mm (up to 300mm with the larger stand) * Width up to 90mm * Hub diameter between 50mm and 75mm **The stand included in this design supports three different rewind mechanisms:** * Gear and vertical track rewind mechanism (included in this thing) * Universal spring rewind hubs designed by Vincent Groenhuis * Martin Hoffman's rewind arm mechanism My hope is that one stand which supports three rewind mechanisms will encourage more people to print and test a rewind solution as part of their MMU deployment. Only non-printed parts are required: * Three 608 bearings * A counterweight (a 0.5" or 12mm bolt and nuts are commonly used) **The linear rewind mechanism now has two additional stand options:** * A drybox for moisture-sensitive filaments * User gcode22 released a very nice wall-mounted stand