Remember, measure twice - cut once.
Regardless of construction material, making small adjustments here and there is likely. For this, a hobby knife is ideal. A pair of scissors may also be helpful if your primary construction material is paper-based.
When it comes time to assemble some of the mechanical bits, have a pair of pliers and screwdriver nearby.
Let's move-on to the materials we'll need to construct the robot chassis / body.
I've printed mine out of PLA on a 3D printer... as I mentioned before this is just one approach. Alternatively, you could use foam-core presenter / poster board, 1/8 inch plywood, 3mm acrylic, or cardboard. I constructed my first models using foam dinner plates.
When you're done, you should have a pile of flat parts ready to assemble.
- 35mm x 10mm round compression springs
- 10mm M3 screws
- 12mm small wood screws
- #10 O-Rings
You can go the fancy route and use neodymium magnets in the corners of the front and back of the body... I purchased a package of 100 1/8 x 1/16 inch rare earth magnets from Amazon for a few dollars.
Or, you could go the craft rivet / paper fastener route.