How To Make a Jigsaw Guide and Crosscut Jig
If you only have a jigsaw in your workshop and you want to make straight or 90° cuts, this simple plywood jig will help you do just that. I’ve used this one in tons of projects, and it’s still one of the most useful guides I’ve built. Best part? It’s easy to make, costs almost nothing, and works great for both straight cuts and crosscuts.