Gears and transmission
4-Colour Rotary Selector (Exploded)
- Bounding box
- 159.0 × 44.0 × 38.5 mm
- Engine
- Precision B-rep
- Parameters
- 23
- Published
- September 19, 2026
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The prompt
// STANDALONE 4-COLOR ROTARY SELECTOR (EXPLODED VIEW MODULE) $fn = 60; // Smoothness // Exploded View Spacing (Change to 0 for assembled view) exploded_offset = 30; // --- COMPONENT A: BASE FLANGE WITH 36mm RECESS RING --- translate([0, 0, -1 * exploded_offset]) { difference() { // Main Mount Plate (44mm x 44mm x 8mm) cube(size = 44, center = true); // 36mm Round Motor Seat cylinder(d = 36, h = 9, center = true); // Central Shaft Clearance cylinder(d = 8, h = 12, center = true); } } // --- COMPONENT B: 10-TEETH (10T) DRIVING PINION --- translate([0, -12.5, 0]) { color("Red") difference() { // 10T Gear representation (Module 0.5, Pitch Diam = 5mm) cylinder(d = 6, h = 8, center = true); // 5mm D-Shaft Bore for Motor cylinder(d = 5, h = 10, center = true); } } // --- COMPONENT C: ROTARY BARREL WITH INTEGRATED 40T DRIVEN GEAR --- translate([0, 12.5, exploded_offset]) { color("LightBlue") union() { // Main Cylindrical Barrel (34mm diameter, 35mm length) difference() { cylinder(d = 34, h = 35, center = true); // Center axle bore cylinder(d = 5, h = 40, center = true); // Channel 1 at 0 degrees rotate([0, 0, 0]) translate([9.5, 0, 0]) { cylinder(d = 2.2, h = 42, center = true); translate([0, 0, 16.5]) cylinder(d1 = 2.2, d2 = 4.5, h = 3.1, center = true); } // Channel 2 at 90 degrees rotate([0, 0, 90]) translate([9.5, 0, 0]) { cylinder(d = 2.2, h = 42, center = true); translate([0, 0, 16.5]) cylinder(d1 = 2.2, d2 = 4.5, h = 3.1, center = true); } // Channel 3 at 180 degrees rotate([0, 0, 180]) translate([9.5, 0, 0]) { cylinder(d = 2.2, h = 42, center = true); translate([0, 0, 16.5]) cylinder(d1 = 2.2, d2 = 4.5, h = 3.1, center = true); } // Channel 4 at 270 degrees rotate([0, 0, 270]) translate([9.5, 0, 0]) { cylinder(d = 2.2, h = 42, center = true); translate([0, 0, 16.5]) cylinder(d1 = 2.2, d2 = 4.5, h = 3.1, center = true); } } // Integrated 40T Gear Base (Module 0.5, Pitch Diam = 20mm) translate([0, 0, -17.5]) cylinder(d = 21, h = 4, center = true); } }
Parameters
| Name | Value | Range |
|---|---|---|
| Exploded spacing | 60 mm | 20 – 200 |
| Plate width X | 44 mm | 20 – 120 |
| Plate depth Y | 44 mm | 20 – 120 |
| Plate thickness | 8 mm | 2 – 25 |
| Motor seat recess dia | 36 mm | 10 – 44 |
| Recess depth | 6 mm | 1 – 8 |
| Shaft clearance hole | 8 mm | 2 – 20 |
| Module | 0.5 mm | 0.2 – 2 |
| Teeth | 10 ea | 8 – 30 |
| Face width | 8 mm | 2 – 20 |
| D-shaft bore | 2 mm | 1 – 3 |
| D-flat depth | 0.4 mm | 0.1 – 0.8 |
| Barrel diameter | 34 mm | 15 – 80 |
| Barrel length | 35 mm | 10 – 120 |
| Centre bore | 5 mm | 2 – 15 |
| Gear module | 0.5 mm | 0.2 – 2 |
| Gear teeth | 40 ea | 12 – 80 |
| Gear width | 4 mm | 1 – 15 |
| Channel dia | 2.2 mm | 0.5 – 8 |
| Channel count | 4 ea | 2 – 8 |
| Channel PCD | 19 mm | 8 – 60 |
| Counterbore dia | 4.5 mm | 1 – 12 |
| Counterbore depth | 3 mm | 0.5 – 10 |
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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