CENTER MARKING JIG

 This is one of those tools that you can easily live without, but it sure is a time saver when laying out a bunch of center points. I drilled a hole through the dowel for a tight fit with a round mechanical pencil. The pencil had just a little wobble in the hole, so using a Q-tip, I wet the inside of the hole to raise the grain inside the dowel. This made for a snug fit, without any wobble. After trying it out though, I found that the pencil lead would break off too easily. I ended up wrapping some tape around a standard #2 pencil, to make it fit in the oversized hole. This pencil works much better.

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It’s important to drill the holes for the rollers, in line with the pencil tip, and also exactly equal distance from the tip. I used shower door rollers that use an 8-32 screw for mounting.

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