Mandrel V1

Hi Makers!  I'm a mechanical engineer & open source developer.  You'll find all my designs are inter-operable and have documentation at OpenLab Project.

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Fastening bracket design for Joining Steel tube such as EMT Conduit.

It's parametric, easily adapted for different size tube & fastener. Insert nut into part, insert part through a plate, and insert assembly into the conduit before tightening the fastener. Make sure to remove burr from the conduit or tube before assembly.

► Use M8x30mm machine screw and nut

► ABS plastic is best for strength

► print in direction of upright font

► Use 3/4 inch trade-size steel EMT conduit

► TESTED 20 lbf pullout force (or more)

► TESTED 150 lbf shear with doubly supported member (or more)

► See DATA folder for more info. Please expand on this concept!

Learn more at qr.net/openlabproject