Horizontal Tangent Drive
AssemblyEndless friction fine-motion drive that rotates the telescope smoothly onto the staff without clamp-then-adjust steps. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Horizontal Tangent Drive
4 top-level lines as of r167920| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Tangent Knob | surveying-level-tangent-knob | 2× | 2 | · | part |
| 2 | Friction Clutch | surveying-level-friction-clutch | 1× | 1 | · | part |
| 3 | Helical Gear Pair | gear-pair | 1× | 1 | · | part |
| 4 | Ball Bearing | ball-bearing | 1× | 1 | · | part |