Brackets and mounts
Assembled Conveyor Frame with Rollers
- Bounding box
- 320.0 × 10.0 × 80.0 mm
- Engine
- Precision B-rep
- Parameters
- 20
- Published
- October 15, 2026
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The prompt
Custom components: Step 1: Design the Custom Parts 2x Conveyor Rollers: Dimensions: Outer diameter40mm, Length 70mm. Center Bore: 6mm straight hole through the middle. Lock Mechanism: Add two M3 threaded side holes (grub screw pockets) near the edges to clamp the roller tight onto the 6mm steel shaft so it won't slip. 2x Frame Side Plates (Chassis): Dimensions: Length 320mm, Height 80mm, Thickness 5mm or 6mm. Fixed Side Holes: Pre-cut 17mm diameter circular pockets for the drive-shaft 606ZZ bearings. Tensioning Side Slots: Pre-cut 17mm x 30mm horizontal oval slots on the opposite end for the idler-shaft bearings so you can slide the idler roller to adjust belt tension. Mounting Holes: Holes for mounting the 12V DC motor L-bracket and LM393 sensor board. Step 2: Custom Part Fabrication 3D Print the Rollers (2x) How: Export the roller CAD files as .STL or .STEP. Where to order online: Champ3D, Dwart Industries, Makerbread, or A3D Manufacturing. Upload the .STL file on their portal, select PLA or PETG plastic with 80% -- 100% infill density (to withstand set-screw pressure), and order. Laser-Cut the Frame Side Plates (1 Set)
Parameters
| Name | Value | Range |
|---|---|---|
| Plate Length | 320 mm | 240 – 400 |
| Plate Height | 80 mm | 40 – 120 |
| Plate Thickness | 5 mm | 3 – 8 |
| Bearing Pocket Diameter | 17 mm | 10 – 25 |
| Idler Slot Width | 17 mm | 10 – 25 |
| Idler Slot Length | 30 mm | 15 – 50 |
| Bearing Pocket Edge Distance | 25 mm | 15 – 50 |
| Idler Slot Center Edge Distance | 40 mm | 20 – 80 |
| Motor Mount Hole Diameter | 3.4 mm | 2.5 – 5 |
| Motor Hole Spacing X | 22 mm | 10 – 50 |
| Motor Hole Spacing Z | 20 mm | 10 – 40 |
| Sensor Mount Hole Diameter | 2.5 mm | 2 – 4 |
| Sensor Hole Spacing Z | 24 mm | 10 – 40 |
| Sensor Hole Offset X | 30 mm | 10 – 60 |
| Roller Outer Diameter | 40 mm | 20 – 80 |
| Roller Length | 70 mm | 30 – 120 |
| Roller Bore Diameter | 6 mm | 4 – 10 |
| Grub Screw Hole Diameter | 3 mm | 2 – 5 |
| Grub Screw Edge Offset | 8 mm | 4 – 20 |
| Assembly Clearance (per side) | 0.2 mm | 0 – 1 |
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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