Dorf / Caroma SP4019 Tap Insert 20T Thermal
Print Profile(1)
Description
This is a replacement thermal barrier insert for Dorf / Caroma tap handles using a 20-tooth internal spline, commonly found in mixer and basin taps.
The model has been iteratively tuned through real-world test fitting to achieve:
- Secure external fit
- Smooth insertion onto the spindle
- Positive spline engagement without binding
This version is optimised for FDM 3D printing and works reliably with Bambu Lab printers.
✅ Key Features
- ✔️ 20-tooth internal spline
- ✔️ Tuned internal clearance (no forcing required)
- ✔️ Slightly aggressive tooth profile for firm engagement
- ✔️ External size adjusted for real-world tolerances
- ✔️ Lead-in taper for easy installation
- ✔️ Watertight, manifold STL
Dimensions
| Feature | Size |
|---|---|
| Height | 9 mm |
| External across flats | 11.5 mm |
| Internal spline | 20 teeth |
| Internal minor Ø | ~8.35 mm |
| Tooth depth | ~0.78 mm |
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
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