View source for PVD Tube Butt Gauge

Every framebuilder needs a way of measuring where the butts and tapers within a tube begin and end. I finally got around to making a simple tool to do this after seeing a similar one built by [http://www.shandcycles.com/2007/03/25/measuring-tube-wall-thickness/ Shand Cycles].

I made my tool quite a bit more ridgid than theirs. I used solid bar welded to 1/2" plate and a precision clamp over a 440C ball bearing. The tool is still quite flexible, so I suggest going nuts on ridgidity when making one of these tools.

This gauge will measure butts up to 300mm.

[[Image:Tube-butt-gauge-1.jpg]]<br><br>
[[Image:Tube-butt-gauge-2.jpg]]<br><br>
[[Image:Tube-butt-gauge-3.jpg]]<br><br>



[[category:Bicycle]]
[[category:Frame Building]]