CNCCMV2/CAD: Difference between revisions
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=Shafts= | =Shafts= | ||
[http://opensourceecology.org/wiki/CNCCMV2/CAD/Shafts Shafts CAD and 2D Fabrication Drawings] | |||
=Bearings: Sleeve Bearing= | =Bearings: Sleeve Bearing= | ||
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*BLDC Outrunner | *BLDC Outrunner | ||
=Collars: Shaft Collar= | =Collars: Shaft Collar= | ||
Revision as of 20:18, 10 April 2012
Block Uniformity
- Keep 2 block dimensions same for all blocks
- Based on the conceptual design, 1 of the block dimensions will solely be used to fit the diameter of the leadscrews, precision shafts, and sleeve bearings.
- The other block dimension to be uniform will mostly support the part by its length on precision shafts.
- For accommodating leadscrew nuts up to 10mm or 3/8" dia, dimension 1 will be 40mm (approx. 1.5")
- For accommodating stepper motor mounting and axis stability, dimension 2 will be 75mm (approx. 3")
Stepper Motor Mount Uniformity
- Use the same stepper motor type for each axis.
- Nema 17 steppers for appropriate performance characteristics.
- Standard 31mm center-to-center mounting holes. Modular.
Sleeve Bearing Mount Uniformity
- Use the same sleeve bearing type throughout machine
- 2 fastening holes on the part to which sleeve bearing should be mounted. For sleeve bearing of 24mm diameter, mount circle with M5 screws and 1mm clearance should be 24 + 5 + 2 = 31mm diameter.
- 20mm depth mount holes
Leadscrew Nut Mount Uniformity
- Use the same leadscrew nut throughout machine
- 3 fastening holes on the part for the nut mounting. For current leadscrew nut, insertion diameter = 12.7mm, mount circle diameter = 19.05mm.
- 20mm depth mount holes
Assembly
Structure
Structure CAD and 2D Fabrication Drawings
Shafts
Shafts CAD and 2D Fabrication Drawings
Bearings: Sleeve Bearing
Bearings: Ball Bearing
Drive: Leadscrew
- 320mm Lg, Qty 3
- 120mm Lg, Qty 1
Drive: Leadscrew Nut
Drive: Stepper Motor
Drive: Spindle Motor
- BLDC Outrunner
Collars: Shaft Collar
- 25mm OD, 12mm ID, 10mm Lg, M6 Setscrew
Couplings: Axis Coupling
- 15mm OD, 30mm Lg, M6 Setscrew x2
- End 1: 5mm dia, 15mm Lg
- End 2: 1/4" dia, 15mm Lg
Couplings: Spindle Motor Coupling
- 15mm OD, 30mm Lg, M6 Setscrew x2
- End 1: 1/8" dia, 15mm Lg
- End 2: 5mm dia, 15mm Lg
Couplings: Spindle Bit Coupling
- 15mm OD, 30mm Lg, M6 Setscrew x2
- End 1: 5mm dia, 15mm Lg
- End 2: 3mm dia, 15mm Lg
Fasteners: Hardware Screw
- 20mm Lg, M5x0.8
Fasteners: Platemount Screw
- 30mm Lg, M5x0.8
Fasteners: Spindleblock Screw
- 60mm Lg, M5x0.8
Fasteners: M5 Washer
- 5.3mm ID, 10mm OD, 0.9-1.1mm Thk