Use unsharpened, unused pencils that are the exactly the same length. This will make your crossbow more stable. Make sure the rubber bands are fastened very tightly. You don’t want the pencils to get loose, roll over on each other, or just break apart in general.

Use unsharpened, unused pencils that are the exactly the same length. This will make your crossbow more stable. Make sure the rubber bands are fastened very tightly. You don’t want the pencils to get loose, roll over on each other, or just break apart in general.

The crossbow should be constructed so that both the stock and the lathe lie flat when you set the crossbow on a table. If one piece sticks out at an angle, adjust the rubber band that’s holding them together until the crossbow will lie flat.

Wind the tape around the shaft and stock piece a few times to make sure it never comes loose.

If anything wobbled or seemed loose when you used your crossbow, use tape to stabilize it. Experiment with different arrows and figure out how you might want to improve your crossbow. For example, Switch out the strings for bigger, stronger rubber bands. Construct a better seat out of piece of fabric. Use wood scraps and wood glue to build a bigger stock and lathe.