1 Inch Cutting Jig

I needed something to guide my foamboard cuts for TTRPG terrain building, so I made these two stackable jigs in TinkerCAD. One is for cutting squares (shown) and one is for cutting circles. The third item slots into the square jig to align corners. You can either cut through the slots directly, or use a pencil to mark and cut after.

One side of each surface has small spikes, and one side is smooth. The spikes help it stay secure to the surface, and will leave little marks on either side of the 1" line. If you want to avoid surface blemishes, use the smooth side.

Total dimensions:
Each jig is 1.25" x 1.25" x 0.125" (excluding small spikes. included, they bring the height to ~0.21" depending on printer resolution)
The corner-aligner is 0.625" x 0.625" x 0.5"