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A shop-made plywood jig that turns a circular saw into a pivoting circle-cutter, sized to any radius within its length.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Jig base | 1 | 1/4" × 12" × 48" | 1/4" plywood | ☐ |
| Guide rail | 1 | 3/4" × 1 1/2" × 48" | 1x2 | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| 1/4" plywood, 12in x 48in | 1 each | ☐ |
| Pine board, 1x2, 4 ft | 1 each | ☐ |
| Wood screws, 1" | 8 each | ☐ |
Overall cost: $. Lumber varies by region, species, and season, so we give a band rather than a figure.