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For a future project, I wanted some triangular sheet metal sections. I have a finger brake folder, but needed some special tooling to do this job. It works, and the 'future project' is about half complete.
https://www.youtube.com/watch?v=DdZtNvTTMpY&t=11s
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Thanks Occasional machinist! We've added your Triangle Folding Fixture to our Brakes and Presses category,
as well as to your builder page: Occasional machinist's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-triangle-folding-fixture"> <img src="/uploads/256747/homemade-triangle-folding-fixture.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-triangle-folding-fixture">Triangle Folding Fixture</a> <span> by <a href="https://www.homemadetools.net/builder/Occasional+machinist">Occasional machinist</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/brake'>brake</a>, <a href='https://www.homemadetools.net/tag/fixture'>fixture</a> </div> </div> </div> </div>
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A reliable shape for locating pins that need to disengage, often by hand, is bullet shaped. The lower portion remains cylindrical, and the 'point' easily shaped by a cordless drill and belt sander, in the case of hardened dowel pins.
The solution of a internal and removable forming 'die' is a great solution; if held to limits of pan brake gauge & width capacities.