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Big desk grommet for old desk

3 part grommet system for old desk with giant cutouts
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updated January 30, 2025

Description

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I have this old desk, no idea the manufacturer, but it's an old school industrial type desk, and it has these giant cutouts on the top, I think not just for cables but for adding a hutch or whatever on top. So I designed this 3 part system to cover it up while still allowing cables to pass through. Most of it (the grommet itself and the lid) is my original design (my first published original design, so I'm happy for any feedback), but the cap and part of the lid the cap fits into were remixed with a few adjusted tolerances and chamfers.

The grommet itself is press-fit, and should take some force to push in place. The rest has tabs, and designed to be tight fit, so should also need a little squeeze to get it to click. It should all be able to print without any supports (steepest angle is 35 degrees, which isn't a problem for most(?) printers) in the orientation in the files

I printed this with PLA+ ona Bambu P1P, so depending on what material you use and your tolerances/settings you shouldn't need any post processing. Early test prints needed a light filing or deburring on edges that touched the build plate, but that was before I added the final chamfers. You may want to give the cap few turns to make sure it moves smoothly.

Lastly, this probably beefier than needs to be, but it should only take ~45 grams of filament and less than 2 hours to print at .2 layer height, 3 walls, 20% 3d honeycomb infill. I made it this strong and to make it a three part system like this, instead of a simpler less beefy two part system, because I thought I might eventually expand this into more complex desk accessory - maybe incorporate it into a riser, organizer, or drawers using gridfinity/multiboard/HSW or the like. STEP files included if anyone to alter it or use

P.S. please excuse the slight underextrusion in the photo, I haven't calibrated for this filament yet

Tags



Model origin

The author remixed this model.

Differences of the remix compared to the original

I only used the cap and part of the piece the cap clicks into. I adjusted the tolerances a little, and added chamfers so no supports should be needed for any part of the print

License