Brackets and mounts
Two-part magnetic levitation vehicle chassis (exploded)
- Bounding box
- 354.6 × 79.6 × 33.0 mm
- Engine
- Precision B-rep
- Parameters
- 27
- Published
- August 30, 2026
Download
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The prompt
Hier ein Prompt, den du für ein KI-CAD-Tool (z.B. Zoo Text-to-CAD, oder als Bau-Vorgabe für dich selbst in Tinkercad/Fusion 360) verwenden könntest. Ich hab die Masse als Richtwerte angegeben, basierend auf den Bauteilen, die wir besprochen haben – die kannst du anpassen, sobald du die genauen Komponenten in der Hand hast: "Design a 3D-printable (FDM) two-part vehicle chassis for a small magnetic levitation model train, approx. 150mm long × 75mm wide × 55mm tall total. Lower shell (open-top tray, wall thickness 2mm): flat bottom surface for print-bed adhesion. On the underside, two recessed rectangular slots (20×10×5mm each) near the front end to mount two drive coils angled slightly downward toward the track. Next to each coil slot, a small circular cutout (8mm diameter) to mount a Hall-effect sensor module flush with the bottom surface, facing down. Along both long edges of the bottom, a shallow channel (15×5mm, running the full length) to hold flat levitation magnets facing downward and outward. Small wire-routing holes (4mm) connecting the bottom cavities to the interior. Interior: open cavity to fit an Arduino Uno (68×53mm), an ESP32 dev board (45×18mm), an INA219 breakout, and two small battery packs (max 40×30×15mm each), each held by 2mm-tall snap-in corner tabs. Include 4 M3 standoffs (6mm tall) for the Arduino Uno's mounting holes. Upper shell (lid): snap-fit or friction-fit onto the lower shell's perimeter lip (0.3mm clearance), removable without tools, with a small ventilation slot pattern. Flat mounting boss (10mm diameter, 3mm tall) on top-front for a small colored tracker marker, and a 5mm through-hole near the rear for an LED to poke through. Both parts: no overhangs steeper than 45° (print without supports), rounded outer edges (2mm fillet) for a clean aerodynamic look, no unnecessary ornamentation — functional, technical appearance. Output as separate STL files for lower shell and lid."
Parameters
| Name | Value | Range |
|---|---|---|
| Lower shell length | 150 mm | 50 – 300 |
| Lower shell width | 75 mm | 30 – 200 |
| Lower shell height | 25 mm | 10 – 100 |
| Side wall thickness | 2 mm | 1 – 10 |
| Base (floor) thickness | 6 mm | 2 – 20 |
| Coil slot length | 20 mm | 5 – 50 |
| Coil slot width | 10 mm | 5 – 50 |
| Coil slot depth | 5 mm | 1 – 20 |
| Hall sensor cutout dia. | 8 mm | 2 – 20 |
| Magnet channel width | 15 mm | 5 – 50 |
| Magnet channel depth | 5 mm | 1 – 20 |
| Wire routing hole dia. | 4 mm | 1 – 10 |
| M3 standoff height | 6 mm | 2 – 30 |
| Standoff outer dia. | 5 mm | 3 – 20 |
| Standoff hole dia. | 3.2 mm | 1.5 – 10 |
| Battery snap-tab height | 2 mm | 0.5 – 10 |
| Battery snap-tab size | 5 mm | 2 – 20 |
| Snap-fit lip clearance | 0.3 mm | 0.1 – 2 |
| Upper wall/top thickness | 2 mm | 1 – 10 |
| Upper shell height | 30 mm | 5 – 100 |
| Vent slot length | 20 mm | 5 – 100 |
| Vent slot width | 3 mm | 1 – 20 |
| Marker boss diameter | 10 mm | 3 – 50 |
| Marker boss height | 3 mm | 1 – 20 |
| LED hole diameter | 5 mm | 1 – 20 |
| Outer fillet radius | 2 mm | 0.1 – 10 |
| Exploded gap | 50 mm | 1 – 300 |
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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