Big beam compass

My engineering beam compasses can't accept a Sharpie. I've had a set of woodworkers' trammel points for a long time so I dug out some of the evil brown stuff and made a REALLY BIG beam compass...

Attachment 43094

To allow the beam to accept markers of different diameters, I copied the arrangement that Elmer Verburg used on the smaller beam compass I built...

https://www.homemadetools.net/forum/...-verburg-27353

A simple V was bandsawed into the end of the beam. Then a small hose clamp through a transverse hole was used to clamp the marker into the V. The adjustability of the hose clamp means it can accept many cylindrical sizes, including center punches for marking out points on a radius.

Attachment 43095

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Thanks mklotz! We've added your Beam Compass to our Measuring and Marking category,
as well as to your builder page: mklotz's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-beam-compass-18"> <img src="/uploads/255449/homemade-beam-compass-18.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="https://www.homemadetools.net/homemade-beam-compass-18">Beam Compass</a> <span> by <a href="https://www.homemadetools.net/builder/mklotz">mklotz</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/compass'>compass</a> </div> </div> </div> </div>
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Slick!

Nicely done, as usual!