Customizable drill hole spacer jig

thingiverse

I needed a spacer thing to drill holes (i.e. for dowels) in the center of the board and thought to make it customizable and share it. It's a simple design but works like a charm. It has a view port to center it on possible pencil marks if necessary. The offset is printed in the top/bottom so you can print several offsets and keep them in your toolbox.