Parametric Screw Cap / Screw Head Cover
Print Profile(2)
Description
UPDATE 03 Lug 2026
1. Edit openscad code for better print
2. Added two ready to print profiles for Fischer ø5 and ø6 diameter
3. Added a reference table for parameters used for Fischer profiles
A fully parametric screw cap designed to cover exposed screw heads with a clean, professional finish.
This model is built for real-world FDM printing, featuring a retention groove for reliable press-fit, a central plug for alignment and stiffness, and true circular fillets generated via rotational profiles (not chamfers or hull tricks).
The geometry is constrained to prevent invalid shapes when adjusting parameters.
Key Features
- Fully parametric design
- Press-fit retention groove (elastic, not friction-only)
- Central plug for alignment and structural stability
- True round fillets for smooth insertion
- Solid bottom cap
Designed for furniture, walls, and workshop use
READY-TO-PRINT PROFILES
Validated parameter sets for common Fischer screw sizes, tested by physical print-and-fit, not calculated values.
| PARAMETER | Fischer ø5 | Fischer ø6 |
| CapOuterDiameter | 8.8 | 9.8 |
| CapThickness | 1.0 | 1.0 |
| CapBottomEdgeRadius | 0.2 | 0.2 |
| GrooveDepth | 0.5 | 0.5 |
| GrooveInset | 0.4 | 0.4 |
| GrooveToPlugGap | 0 | 0 |
| PlugOuterDiameter | 2.3 | 2.6 |
| PlugHeight | 2.5 | 2.5 |
| PlugInnerDiameter | 0 | 0 |
| PlugTopFilletRadius | 1 | 1 |
| FitOffset | 0 | 0 |
Validated on Bambulab PLA Basic. Small tolerance adjustments may be needed on other setups; use FitOffset if your Fischer collar recess is tighter or looser.
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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