Brackets and mounts
Trumpet Lyre Bracket (Exploded)
- Bounding box
- 149.5 × 57.0 × 40.0 mm
- Engine
- Precision B-rep
- Parameters
- 19
- Published
- August 7, 2026
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Free to download and use. See the terms.
The prompt
3D printable trumpet lyre sheet music holder bracket, split into two separate printable parts (main body and clamp jaw). - Part 1 (Main body): Half-pipe curved clamp for a 28mm diameter trumpet tube with a 4.5mm wall thickness and 18mm width. Features an integrated aligned top hinge lug with a 4.3mm through-hole for an M4 bolt. Extends into an 85mm flat paddle handle terminating in a 33.5mm diameter by 4mm deep circular recessed pocket for a car magnetic mount. Includes an M4 hexagonal nut pocket (7.8mm wide, 3.5mm deep) at the lower clamping flange. - Part 2 (Clamp jaw): Matching half-pipe curved clamp for a 28mm tube with a male hinge lug (4.3mm through-hole) and a lower flange with an M4 bolt hole for tightening. Designed as a watertight, clean engineering CAD model optimized for FDM 3D printing flat on the bed.
Parameters
| Name | Value | Range |
|---|---|---|
| Tube Inner Radius | 14 mm | 5 – 30 |
| Clamp Wall Thickness | 4.5 mm | 1 – 10 |
| Clamp Width (axial) | 18 mm | 5 – 30 |
| Hinge Lug Center Separation | 10 mm | 6 – 20 |
| Hinge Lug Thickness (each) | 6 mm | 3 – 12 |
| Lug Radial Projection | 10 mm | 4 – 20 |
| Lug Tangential Width | 10 mm | 4 – 20 |
| Hinge Pin Hole Diameter | 4.3 mm | 2 – 8 |
| Bottom Flange Length | 10 mm | 5 – 20 |
| Bolt Clearance Hole Diameter | 4.5 mm | 3 – 8 |
| Nut Pocket Across Flats | 7.8 mm | 5 – 15 |
| Nut Pocket Depth | 3.5 mm | 1 – 10 |
| Paddle Length (tube center to tip) | 85 mm | 40 – 150 |
| Paddle Bar Thickness | 5 mm | 3 – 15 |
| Boss Diameter | 40 mm | 35 – 60 |
| Boss Thickness | 8 mm | 5 – 15 |
| Recess Pocket Diameter | 33.5 mm | 10 – 50 |
| Recess Pocket Depth | 4 mm | 1 – 8 |
| Exploded Gap | 50 mm | 20 – 150 |
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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