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Selection of a linear rail and bearing to test for 19-0/1.
Requirements (preliminary):
- Cleanroom compatible
- Load: ~1kgoperator handling loads
- weight of loaded Ring and HF (~1kg, not in SE)
- operator load - handling/sliding linear rail
- installing HF onto rail fixture while extended - robust to operator error
- Range: ~0.4m (retracted) to ~0.9m (extended)
- extend by at least 0.5m (to make ring engage far side 1/4-shell)
- retracted length ~0.4m (to not overhang edge of table)
- Precision:
- Line up threaded holes in Ring with thru holes in 1/4-shell
- 2mm pins, 2.4mm clearance holes → ~0.4mm dia. clearance shared between assembly and manufacturing tolerances
- 19-0/1 prototype: linear rail, HF bolted on. no other adjustment. unbolt/rebolt to make small adjustments via oversized holes
- Bolt together, slide in rail, check misalignment, slide out rail, adjust if required
- Bolt together, install taper pins, slide in rail, install fasteners
- Line up threaded holes in Ring with thru holes in 1/4-shell
- Usability:
- include handle
- include lock in "extended" position
- keep clear of fragile parts - work with covers etc.
Candidate vendor parts:
- 8020 Inc. # 6516
- slide on 1.5" t-slot rail. add #6800 locking handle. prototype only
- Misumi # SAR 340 (customize length)
- linear slide w/ bearings. configurable
