Enclosures and housings
TPU Cover for Male Coupling
- Bounding box
- 68.5 × 110.2 × 68.5 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- November 2, 2026
Download
Free to download and use. See the terms.
The prompt
PART 1 — TPU COVER FOR MALE COUPLING General: Axisymmetric, revolved body. Material: TPU 95A. Overall length: 110 mm. Designed to slide over and snap onto the male coupling. Coupling dimensions (as measured): Main cylindrical outer diameter of male coupling: 61.3 mm. “Grab point” diameter (where cover should grip): 49.4 mm. Internal diameters and clearances: Inner diameter over main body region: 61.6 mm. This is 61.3 mm + 0.3 mm clearance for an easy slide fit in flexible TPU. Inner diameter at grab ring region: 49.4 mm, with option to slightly tighten to 49.3 mm. Use 49.4 mm as the nominal, but allow parametric adjustment down to 49.3 mm if a firmer snap fit is required. Length segmentation (from open mouth towards closed end): Mouth chamfer zone: 5 mm axial length. Inner diameter transition from 61.6 mm up to full internal profile; add a 0.5–1.0 mm, 45° chamfer at the very mouth edge to ease installation. Main body cover zone: about 80 mm axial length. Inner diameter 61.6 mm along this zone. Grab ring zone: 15 mm axial length near the closed end, aligned over the 49.4 mm grab point on the coupling. Inner diameter 49.4 mm (or slightly smaller if desired). Closed end thickness: remaining length (roughly 10 mm) forming a rounded closed cap. Outer profile and wall thickness: Radial wall thickness throughout most of the cover: 2.5 mm (nominal). Outer diameter at main body: inner 61.6 mm + 2.5 mm wall → 66.6 mm. Outer diameter at grab ring region can gently taper or stay similar, as long as internal diameters above are preserved. Add fillets at transitions between zones so there are no sharp internal stress risers; typical fillet radius 1–2 mm. Chamfer and fillet details: Mouth: 0.5–1.0 mm chamfer at 45° on the inner lip. External corners: 1–2 mm fillets on outer edges for comfort and durability. Export: Provide STL suitable for FDM printing. Axis of revolution is the central longitudinal axis.
Parameters
| Name | Value | Range |
|---|---|---|
| Main inner diameter | 61.6 mm | 50 – 80 |
| Grab ring inner diameter | 49.4 mm | 30 – 60 |
| Wall thickness | 2.5 mm | 1 – 5 |
| Overall length | 110 mm | 80 – 150 |
| Mouth zone length | 5 mm | 2 – 10 |
| Main body length | 80 mm | 40 – 120 |
| Grab ring zone length | 15 mm | 5 – 30 |
| Transition length to grab | 3 mm | 1 – 5 |
| Mouth lead‑in taper (radial) | 1 mm | 0 – 3 |
| Mouth chamfer size | 0.5 mm | 0.2 – 1.5 |
| Inner transition fillet radius | 1 mm | 0.2 – 2 |
| Outer transition fillet radius | 1.5 mm | 0.5 – 2.5 |
| Cap fillet radius | 2 mm | 0.5 – 4 |
| Outer mouth fillet radius | 1 mm | 0.2 – 2 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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