Improved Cable Grommet (Customizable)
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Estimated printing price per file
€0.07 – €0.08 net (excluding VAT)
For file: grommet_38.1mm_cap_mediumhole_0.4n_0.2mm_PLA_COREONE_4m.bgcode
This is an estimate for one file. You’ll confirm the exact price before ordering.
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File used for this estimate
Average indicative estimate: €0.07 excluding VAT (range midpoint).
- Weight reported by the author
- 1 g
- Print time reported by the author
- 4.2 min
- Source material
- PLA
- Estimate material
- PLA
- Estimate printer
- Bambu Lab P1S - 0.4 nozzle
- Estimate process
- 0.20mm Standard
Indicative estimate for the selected file only, based on the author’s weight and print time. File variants are not added together. The final price is calculated after file analysis.
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Self-locking general purpose grommet -- comes in many sizes, or can be customized
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Updated at source:
Model information
- Source
- Printables
- Category
- Office
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
I couldn't find a cable grommet that I liked online, so I built this.
This grommet fully covers both the top and bottom of the hole, so there's no exposed edging of the board it is mounted into. The pieces screw together for a tight fit, and a solid feel. Once installed, both the bottom and top have a clean finished look.
Caps can be placed on top to further reduce the visibility through the hole. Caps come with various sized openings (which again can be customized if you need something specific). They snap into place, flush to the original housing.
All parts can be customized to exact dimensions, or you can use one of the prebuilt parts designed to fit with common hole saw sizes and board widths.
Usage and Assembly
To install, the female part (the part with the threads on the inside) should be inserted into the bottom, and the male part screws in from above.
Both the male and female pieces have two tabs on their interior. The included tool can hook into these tabs to give extra torque when tightening the pieces.
Caps simply snap in.
Using Prebuilt Parts
The pre-compiled filenames take the form similar to: grommet_50.8mm_15-23mm.stl. The 50.8mm refers to the size of the hole the grommet is meant to fit into. The second set of numbers is the range of board sizes that the generated grommet will work with.
The cap and tool filenames start with the same hole size specifier as the main body they're meant to work with. That is a 50.8mm cap will fit into a 50.8mm grommet. Various opening sizes are available for each cap – but, if you need something specific, you can always go to the customizer, specify a custom opening size, along with the hole diameter of the main part, and it will generate a matching cap.
Customizing
This can be customized using OpenSCAD to accommodate specific hole sizes, board widths, or to create caps with larger or smaller openings. There's also options to remove the tabs or snap mechanism if you are not using a cap, and want a cleaner look on the inside. To customize:
- Download OpenSCAD from https://openscad.org/ . (This is free opensource software)
- Open grommet.scad
- From the
Windowsmenu ensure thatCustomizeris selected. A customizer pane should be visible on the right. - Tweak the values, and select the part(s) you want to print
- Press f5 to preview, f6 to construct, and f7 to export an stl file.
Recommended Printer Settings
- 0.2mm layer height (required due to the threaded parts)
- 0.4 or 0.6mm nozzle
- Any material
- At least 2 perimeters – 100% infill recommended
- Textured build plates tend to produce better looking results