TUSH FT - Spool Holder - Fat Tracks edition

thingiverse

You know what Thingiverse really needs? Another spool holder! # TUSH FT: Fat Tracks Edition TUSH-style spool rollers are great when laying filament on a flat surface: - Very compact and lightweight - Universal (no adjustment needed) and quick to set up - No tendency to self-unroll - No wobble after filament pull This take improves on the following: - Needs 4x 608 bearings, 4x M3 screws (5-18mm metal or wood) - Minimalist design heavily inspired by [Universal Tabletop holder](https://www.thingiverse.com/thing:2791247) - Lays the spool directly on fat V bearing guides (15mm!) - Automatically centers the spool and avoids the rims touching the holder - Larger base doesn't flip and doesn't require a "rail" for support - Large guides have no trouble on chipped/distorted rims - Longer support fits any spool ranging from 160 to 270mm in diameter (anything from 250g to 5kg) - *Tight* fits and M3 support screws result in a very rigid support with zero play - Can still be super-glued if needed ## 2020-01-04 Update - New rail (`rail_v3.stl`): Revised the inner structure so that spools with an asymmetric rim (Prusament *cough*) do not jump and/or create additional resistance while rotating. For most regular rims this also results in less friction. The new rail is still self-centering thanks to a very shallow inner angle. If you're using PrusaSlicer or Slic3r, using 0.1 layers and enabling "Detect thin walls" is *recommended* to get an accurate angle. ## 2019-10-25 Update - Updated the support (`support_v2.stl`): increased tolerances on the center pin, compensating for minor manufacturing variations. - Fastening is easier due to a more generous screw thread. ## 2019-09-20 Update - The design has been modified to improve stability. # More on spool holders My previous favorite spool holder was the [Universal Tabletop holder](https://www.thingiverse.com/thing:2791247) from Xtrudor. I actually printed several of the first version (with the straight edges), before the tilted one was available. They work perfectly fine: I just needed another pair and decided to improve on the design. I frequently buy the cheapest PLA I can find for print-testing. These rolls tend to be slightly deformed and sometimes have small dents on the rim, leading the roll to jam into the side of the support and eventually fall when using the original TUSH. Thanks to the chamfered inner edges, this doesn't happen using Xtrudor's version. However the roll *still* tends to move to either side of the bearing and sit on the edge. A bearing guide works much better, and eliminates completely the need for borders. In fact, I recommend to *avoid binding the two supports together*, since these will slide on the table and follow any amount of deformation in the rim without a problem. If you are pulling the filament towards the side of a table simply add some adhesive rubber on the edge, as visible here on the top-right: Using a very small piece of double-sided tape on a single support (so that the other is free to slide) is also a good approach. Using simple round rods as spool holders can cause too much wobble when unrolling, frequently pulling on the printer. I've stopped using them almost immediately. If you have a wall or an anchor point, use a *square* rod with rounded edges instead, or a spool holder with universal hub clamps and axial bearings, such as [this design with threaded rods](https://www.thingiverse.com/thing:3012614). These universal hub clamps are excellent (I'd say even superior to any TUSH variant), but are a bit more cumbersome to change when fitted inside an enclosure, since some screwing is necessary. They are worth it though from a stability standpoint if you have the space!