Parallel-Arm Linkage
AssemblyUpper and lower arms pivoting on bearings at the rear, kept parallel so the blade rises and falls vertically with little lateral wander. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Parallel-Arm Linkage
5 top-level lines as of r150476| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Upper Arm | scrollsaw-upper-arm | 1× | 1 | · | part |
| 2 | Lower Arm | scrollsaw-lower-arm | 1× | 1 | · | part |
| 3 | Pivot Pin | scrollsaw-pivot-pin | 2× | 2 | · | part |
| 4 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 5 | Tension Lever | scrollsaw-tension-lever | 1× | 1 | · | part |