PARAMETRIC L-Profile End Cap
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Customizable OpenSCAD Metal Angle Cap
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- Creative Commons — Attribution — Noncommercial
A fully customizable, 3D-printable end cap for metal L-angle profiles.
This model was designed for metal angle sections with a square L geometry, but the included OpenSCAD source file lets you quickly adapt the cap to different profile sizes, wall thicknesses, insertion depths, and tolerances.
This creates a proper internal L-shaped seat that follows the metal profile, includes a closed bottom, and leaves configurable clearance for a reliable press-fit or slip-fit assembly.
How to use
Insert your metal profile in the metal profile section
Set the required tolerance
IMPORTANT: remember to uncheck the "show profile" box before exporting the model
Main features
Fully parametric OpenSCAD design.
Designed for metal L-angle / corner profiles.
Customizable profile leg size and metal thickness.
Adjustable end-cap insertion depth.
Adjustable bottom thickness.
Adjustable wall thickness.
Adjustable clearance for tuning the fit to your printer and material.
Internal L-shaped cavity generated from the actual profile geometry.
Optional profile reference preview in OpenSCAD.
Rounded-corner / fillet-ready geometry.
No supports required in the default orientation, depending on the final geometry and slicer settings.
Adjustable parameters
Open the .scad file in OpenSCAD and edit the parameters:
Parameter | Description |
|---|---|
| Nominal external length of each leg of the L-angle profile |
| Actual thickness of the metal angle |
| Total endcap height |
| Thickness of the closed end face |
| Thickness of the printed external walls |
| Clearance between the metal profile and the printed cavity |
| Radius of the outer rounded corner |
| Radius of the internal rounded corner |
Recommended fit settings
Start with these values and adjust after a small test print:
Fit type | Suggested |
|---|---|
Tight press-fit | 0.10–0.20 mm |
Standard slip-fit | 0.20–0.35 mm |
Loose / easy assembly | 0.40–0.60 mm |
Actual clearance depends on filament shrinkage, extrusion calibration, material, print orientation, and the real radius of the bent metal angle.
If this model was useful, please share a Make, upload a photo of your result, and leave a like. Feedback on profile sizes, tolerance values, and material choice is especially welcome.