Semi-octet truss first prototype

1 safety first
welding is dangerous; always work in a well-ventilated space, wear eye protection, and be careful!
welding the first semi-octet truss prototype at the Kokrobitey Institute makerspace
welding the first semi-octet truss prototype at the Kokrobitey Institute makerspace
octet truss KI first prototype
Emmanuel load-testing first octet truss prototype at Kokrobitey Institute makerspace, during #ampqamp14.

This was the first time we welded a complete full-length octet truss. Rudimentary structural tests after fabrication demonstrated good performance/strength but unacceptable dimensional tolerance (i.e. it was strong, but not precise).

Special thanks to Chamil, master maker at the Kokrobitey Institute makerspace, who suggested to develop a 2d truss jig (to hold 1in angle bar frame straight and square while welding) and square pyramid jig (to enable standardized production welding of square pyramids, as a component for full octet truss).

Chamil

More on spacecraft M&D from ampqamp14 here.

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