✅ Router Straight-Line Guide Tip Always reference one consistent edge of your material. When you’re making a straight cut with a router and a straight edge or guide, the router can wander if your board isn’t perfectly square. To keep your line dead straight, clamp your guide and always keep the router base firmly pressed against the guide edge—don’t just let it loosely follow. Bonus Tips: • Take multiple shallow passes (⅛” at a time) instead of trying to hog out material in one go. Cleaner cut,

This video shows how to cut a straight line with a jigsaw by applying how a router works. In general, it is very difficult to cut an exact straight line using only a jigsaw. However, if you attach the newly manufactured jig to the jigsaw, you can cut straight lines without difficulty. Source : My youtube channel https://youtu.be/bBmFkEOdU6M | B-Star Crafts