Customizable Filament Spool Edge Clips - Park Loose Ends, 3 Rim Gaps

Park a loose filament end near a stored spool rim with an original open-jaw clip concept. Three clear-gap presets: 2.2, 3.2 and 4.2 mm. Customize the rim gap with the native TrueGeometry Playground recipes.

Unprinted fit-test prototype. Rim retention, flex, fatigue and filament grip are untested. The presets are clear gaps, not guaranteed rim-thickness fit ranges. The small entrance nibs may not resolve in a slicer. Do not force a clip onto a rim or filament into the slot. Remove the clip before feeding a printer.

The cover is a software render of the actual native Playground meshes on an illustrative rim section with illustrative filament. It is not a photo or proof of fit. Rim and filament are not included.

Sizes and seat

Thin: 18 x 10.2 x 12 mm, 2.2 mm clear gap.

Medium: 18 x 11.2 x 12 mm, 3.2 mm clear gap.

Thick: 18 x 12.2 x 12 mm, 4.2 mm clear gap.

Jaw thickness 2 mm. Filament-seat width 2.2 mm, entrance 1.6 mm, intended for a 1.75 mm fit trial. No spool-brand compatibility. Not designed for 2.85 mm filament.

Native, customizable build

Eight native boxes per clip, no Booleans or unions, no closed hole, no print-in-place hinge and no text. Full TrueGeometry Playground commands: in the blog article https://blog.truegeometry.com/0_0_0_0/blogs/post-45f5cb8c.html and the attached recipe files. The three-page PDF guide shows how to paste and run them, with numbered markers on actual Playground screenshots.

Example, the first body piece of the Medium preset:

/parametric box 2 7.2 12

/tag_last MediumBack

/move @MediumBack 1 3.6 6

This is one piece only. Use Medium_recipe.txt for the complete clip, or All_Clips_recipe.txt for all three. Start from a fresh scene to avoid duplicates.

Customize the gap

For a gap change delta: Back height += delta, Back y += delta/2. Upper, SeatLeft, SeatRight, SeatBack, NibLeft and NibRight y positions += delta. Lower and all z values stay unchanged. These are editable recipe values, not live sliders. Measure the rim first; the presets are not proven fit ranges.

Print and test

STLs use broad-side-down orientation with 12 mm print height. Eight separate closed shells overlap per clip; treat each STL as one part and merge overlaps in the slicer. Check layer preview for clear gaps, connected walls and resolved nibs. The seat cavity may need support or careful bridging. No material, nozzle or settings have been tested. Do not force a tight fit. Remove the clip before feeding a printer. Not a load-bearing clamp or safety part.

Verification

The combined recipe was re-run from a freshly reloaded Playground page. All 24 native mesh arrays, indices and transforms matched the first run. Each box shell passed a welded-edge check. Supplied STLs came from the second live scene, with only display x offsets removed. This checks geometry and recipe reproducibility, not real-world performance.

Files: 3 STLs, 4 recipes, guide PDF. Gallery begins with an illustrative in-use software render, then empty presets and guide pages.

License: CC BY 4.0. AI-assisted: Yes.

https://blog.truegeometry.com/0_0_0_0/blogs/post-45f5cb8c.html 

Playground