3D-Printed-Cycloidal-Drive

This is a hobby engineering project of a 3D-printed dual-disc cycloidal drive with a 13:1 reduction ratio.All custom mechanical parts were designed from scratch and optimized for 3D printing.Included:• Assembly instructions• Calculations and datasheets• YouTube build and test videoA pulley and weight system was used for load testing. Test setup:• Pulley radius: 35 mm• Lifted load: 10 kg• Measured output torque: 3.43 Nm• This value represents the safe operating torque• Higher torque may be possible but was not testedDrive input:• Motor: NEMA 17 stepper motor• Supply voltage: 12 V• Driver current: 1.6 A• Microstepping: Full step (1/1)Speed:• Theoretical motor speed: 120 RPM• Actual motor speed under load: 86.7 RPM• Output speed: 6.67 RPMReduction ratio: 13:1Print SettingsNozzle diameter: 0.4 mmMaterials:• Outer housing (3 parts): PETGLayer height: 0.18 mm (initial 0.20 mm)Material: PETGInfill: 50% GyroidWalls (perimeters): 4Infill/Wall overlap: 35%Top layers: 5Bottom layers: 3• All other