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Parametric Hole Caps with Grip Fins

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Kirk

@kirk_4440206

Low profile hole caps/covers with large grip fins to hold them firmly in place

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Downloads: 14
Makes: 0
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Updated at source: Jul 3, 2026

Model information

Source: Printables
Category: Tools
License: Creative Commons — Public Domain

Details Files (3)Makes & comments (Makes: 0) (Comments: 0)Remixes (0)Collections (3)

Low profile hole caps/covers with large grip fins to hold them firmly in place. The model is fully parametric with the step file and FreeCAD file available. I recommend using the FreeCAD file as all parameters are configurable in the "Parameters" spreadsheet.

The STL is sized for an ~18mm hole. It was designed to fit a series of accessory holes on the top of a Harbor Freight workbench.

Printed with PLA
.12mm layer height
3 bottom/top layers
3 perimeters
No supports

With the above settings, the entire model is solid regardless of infill settings.