Very Simple Gears 3D Printer Model
The file 'Very Simple Gears 3D Printer Model' is (stl,scad,txt) file type, size is 526.3KB.
The file 'Very Simple Gears 3D Printer Model' is (stl,scad,txt) file type, size is 526.3KB.
I created this very small OpenSCAD file to create very basic gears for transmitting power from stepper motors primarily, and in this instance to move a carriage along a multitap inductor for selecting different inductances.
The OpenSCAD file is just a text file comprising the OpenSCAD scripts to generate the gears.
There is no science behind the generation of the teeth, but for simple applications I have found them useful at the default settings:
Pitch = 2.0;
ToothH = 1.5;
ToothSlopeAngle = 75;
MeshFactor = Pitch/20;
For printing I have set layer height to either 0.1mm or 0.15mm, and have printed in PLA and ABS. In the photo attached, black is ABS-X printed on a Prusa i3, and white is 3DJake Eco PLA Tough printed on a FlashForge Guider 2.
I have included a number of ratios in pre-created STL files at 5mm gear thickness for a 4mm central axle, with 2 STL files for 5mm (Std Stepper Motor compatible).
The following modules create the gears (lines 33 to 48 of the SCAD file):
/ All fixed gears require the 2.5mm hole in the hub to be tapped for M3 /
/ Parameters: (Number of Teeth, Gear Thickness, Axle Hole Diameter) /
//Cog3DToPrint(40,5,Rod4mm);
/ Parameters: (Number of Teeth, Gear Thickness, Axle Hole Diameter, Fixing Hub Dia, Fixing Hub Ht) /
//FixedCog3DToPrint(80,5,Rod4mm,10,8);
/ 4mm Axle Hole Parameters: (Number of Teeth Gear 1, Number of Teeth Gear 2, Gear Thickness) /
DoubleCog4mmToPrint(80,16,5);
/ 3mm Axle Hole Parameters: (Number of Teeth Gear 1, Number of Teeth Gear 2, Gear Thickness) /
//DoubleCog3mmToPrint(40,10,4);
/ Fixing Hub Parameters: (Fixing Hub Dia, Axle Hole Diameter, Fixing Hub Ht) /
//FixingHubToPrint(10,Rod4mm,8);
| 10T_5Ht_4Axle.stl | 62.6KB | |
| 16T_5Ht_5Axle.stl | 250.5KB | |
| 20T_5Ht_4Axle.stl | 89.4KB | |
| 20T_5Ht_5Axle.stl | 263.6KB | |
| 40T_5Ht_4Axle.stl | 154.9KB | |
| 40T_5Ht_5Axle.stl | 329.4KB | |
| Cogs.scad | 3.2KB | |
| Dbl_Fixed20T_10T_5Ht_4Axle.stl | 310.0KB | |
| Dbl_Fixed30T_20T_5Ht_4Axle.stl | 370.0KB | |
| Dbl_Fixed40T_20T_5Ht_4Axle.stl | 403.1KB | |
| Dbl_Fixed50T_20T_5Ht_4Axle.stl | 436.1KB | |
| Dbl_Fixed60T_20T_5Ht_4Axle.stl | 469.0KB | |
| Dbl_Fixed70T_20T_5Ht_4Axle.stl | 501.8KB | |
| Dbl_Fixed80T_16T_5Ht_4Axle.stl | 520.9KB | |
| Dbl_Fixed80T_20T_5Ht_4Axle.stl | 534.4KB | |
| Fixed10T_5Ht_4Axle.stl | 242.4KB | |
| Fixed120T_5Ht_4Axle.stl | 171.2KB | |
| Fixed15T_5Ht_4Axle.stl | 273.3KB | |
| Fixed20T_5Ht_4Axle.stl | 266.6KB | |
| Fixed40T_5Ht_4Axle.stl | 332.3KB | |
| Fixed80T_5Ht_4Axle.stl | 463.2KB | |
| Notes_on_use_of_SCAD_file.txt | 1.5KB |
