Hex Nut Screw Knob

by ltyler11 in Design > 3D Design

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Hex Nut Screw Knob

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This simple print can replace a missing/broken plastic part that is commonly found on different products that include clamps and similar things. In my case, we had bought a Christmas tree, but it turned into a huge dilemma when our tree stand couldn't support it because one of the clamps had nothing to drive it in and stay in place. The device slides onto the nut and flexes around it to secure itself. For reference, the hex nut was about 3/8 of an inch tall and half an inch wide.

Supplies

CAD software - I used Fusion 360

Slicing software - I used BambuStudio

Any 3D printer

Filament of choice, but preferable PETG for strength and slight flex

Open CAD Software and Create New Design

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Open CAD Software and Create New Design

Make the First Sketch

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Start by making a sketch with these dimensions on the Z plane

Extrusion #1

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Extrude the highlighted section 2 inches

Sketch #2

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Create the following sketch on the X plane

Extrusion #2

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Now extrude it .37 inches

Sketch #3

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Keep following these sketches and dimentions

Extrusion #3

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Extrude it as depicted

Sketch #4

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Keep following these sketches and dimentions

Extrusion #4

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Then cut it 2 inches

Sketch #5

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Keep following these sketches and dimentions

Extrusion #5

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Extrude that .1 inches

Sketch #6

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Keep following these sketches and dimentions

Extrusion #6

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Extrude it out 0.05 inches

Sketch #7

Screenshot 2025-10-18 at 1.35.32 PM.png

Keep following these sketches and dimentions

Extrusion #7

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Extrude it in 2 inches

Sketch #8

Screenshot 2025-10-18 at 1.38.52 PM.png

Keep following these sketches and dimentions

Extrusion #8

Screenshot 2025-10-18 at 1.39.10 PM.png

Extrude it in 0.05 inches, and you are done with the design!

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Now upload this design to your slicing software of choice, print it, and there you have it, your very own hex nut screw knob! Tip: print with a vertical orientation and enable supports to it is easy to remove supports and there will be no surface pressure fractures when twisting the knob.