Pulley Block CAD Re-Design
Budget: $250 – $750 CAD
An existing pulley block needs its CAD files updated in two stages.
Stage 1 – Full-size unit
• Modify both the sheave and the axle.
• Sheave: alter the inner and root diameters and add a knurling feature exactly where marked on my hand-annotated drawings.
• Axle: create several stepped diameters, new radii and an offset-slot revision so a sealed needle bearing can be press-fit without touching the cheeks.
Nothing on the cheeks themselves changes; injection-mould tooling will handle those later.
Stage 2 – Scaled concept
Using the same geometry, generate a second set of models at roughly two-thirds of the original overall size so I can 3-D print and check visual proportions.
Files I will supply
• Current .STL of the cheek
• .IGS of both sheave and axle
• Scans of the drawings with my handwritten dimensions
What I need back
1. Updated solid models of the full-size assembly (.IGS)
2. Matching assembly at 2/3 scale (.IGS)
3. Printable .STL for the cheek (both sizes)
4. Dimensioned fabrication PDFs for all revised parts
Fit, clearances and stack-up must be verified in an assembly environment before export so I can send everything straight to the printer and the machine shop. Use any mainstream parametric package—SolidWorks, Inventor, Fusion 360 are all fine—as long as the neutral formats above are honoured.
Stage 1 – Full-size unit
• Modify both the sheave and the axle.
• Sheave: alter the inner and root diameters and add a knurling feature exactly where marked on my hand-annotated drawings.
• Axle: create several stepped diameters, new radii and an offset-slot revision so a sealed needle bearing can be press-fit without touching the cheeks.
Nothing on the cheeks themselves changes; injection-mould tooling will handle those later.
Stage 2 – Scaled concept
Using the same geometry, generate a second set of models at roughly two-thirds of the original overall size so I can 3-D print and check visual proportions.
Files I will supply
• Current .STL of the cheek
• .IGS of both sheave and axle
• Scans of the drawings with my handwritten dimensions
What I need back
1. Updated solid models of the full-size assembly (.IGS)
2. Matching assembly at 2/3 scale (.IGS)
3. Printable .STL for the cheek (both sizes)
4. Dimensioned fabrication PDFs for all revised parts
Fit, clearances and stack-up must be verified in an assembly environment before export so I can send everything straight to the printer and the machine shop. Use any mainstream parametric package—SolidWorks, Inventor, Fusion 360 are all fine—as long as the neutral formats above are honoured.