Design Specifications
- Travel length: 500mm
- Lead: 5mm/rev
- Accuracy grade: C5
- Key components:
- 1605 ball screw
- BF12 nut
- Angular contact bearings
Tolerance Requirements
|
Component |
Dimension |
Tolerance |
|
Screw mounting |
Center distance |
±0.02mm |
|
Nut interface |
Parallelism |
0.01mm/100mm |
|
Bearing preload |
Axial play |
0.005-0.015mm |
Workflow
- Position screw relative to linear rails
- Add bearing supports with preload adjustment
- Create motion study for 50mm travel
- Analyze contact stresses in nut interface
- Export assembly for FEA analysis
Assessment
- Assembly constraint accuracy (35%)
- Motion simulation realism (25%)
- Tolerance stack-up validation (25%)
- Design documentation (15%)
Resources
- Ball Screw Design Handbook
- Fusion 360 motion simulation tutorials
- Bearing preload calculation spreadsheet
- GD&T assembly standards PDF