Enclosures and housings
Taurus 3 Katrol Flat Belt Pulley
- Bounding box
- 27.0 × 27.0 × 28.0 mm
- Engine
- Precision B-rep
- Parameters
- 8
- Published
- October 2, 2026
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The prompt
// ============================================================ // TAURUS 3 KATROL - VLAK LOOPVLAK (SLS NYLON PRINT) // ============================================================ // Dimensions: // - Outer Flange Diameter: 27.0 mm // - Flat Belt Surface Diameter: 19.0 mm (completely flat) // - Flat Belt Width: 10.0 mm // - Side Wall Thickness: 2.0 mm (Total Width = 14.0 mm) // - Bearing Seat: R4-2RS (OD 15.875 mm - Press-fit tuned) // ============================================================ $fn = 120; // Smooth curves // --- PARAMETERS --- bearing_od = 15.875; // R4 bearing outer diameter bearing_width = 4.978; // R4 bearing height (~5.0mm) bearing_clearance = -0.085; // Press-fit offset for SLS Nylon (-0.085mm) flange_od = 27.0; // Outer flange diameter groove_od = 19.0; // Flat belt surface diameter belt_width = 10.0; // Width of flat belt surface wall_thickness = 2.0; // Flange wall thickness total_height = belt_width + (wall_thickness * 2); // 14.0 mm bearing_seat_dia = bearing_od + bearing_clearance; // 15.79 mm pass_through_hole = 8.0; // Center clearance hole for axle/inner ring // --- GEOMETRY GENERATION --- difference() { // 1. Solid H-profile body with flat belt bed union() { // Flat center cylinder for belt cylinder(d = groove_od, h = total_height, center = true); // Left Flange translate([0, 0, -total_height/2 + wall_thickness/2]) cylinder(d = flange_od, h = wall_thickness, center = true); // Right Flange translate([0, 0, total_height/2 - wall_thickness/2]) cylinder(d = flange_od, h = wall_thickness, center = true); } // 2. Press-fit Bearing Seat (R4-2RS centered inside) seat_depth = total_height/2 + bearing_width/2; seat_z_center = total_height/2 - seat_depth/2 + 0.01; translate([0, 0, seat_z_center]) cylinder(d = bearing_seat_dia, h = seat_depth + 0.02, center = true); // 3. Center clearance hole for 1/4" / 6mm axle & inner ring rotation cylinder(d = pass_through_hole, h = total_height + 2, center = true); }
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Flange Diameter | 27 mm | 20 – 40 |
| Flat Belt Surface Diameter | 19 mm | 12 – 30 |
| Flat Belt Width | 10 mm | 4 – 20 |
| Side Wall Thickness | 2 mm | 1 – 4 |
| Pass-Through Hole Diameter | 8 mm | 4 – 12 |
| Bearing Outer Diameter | 15.88 mm | 10 – 25 |
| Bearing Width | 4.98 mm | 3 – 8 |
| Bearing Clearance (negative = press fit) | -0.08 mm | -0.3 – 0 |
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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