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Bumper Attachment Design
Hi everybody, this is my first thread! Anyways, my team had a lot of trouble with bumper attachments last year. They were constantly bending, breaking, being difficult to change, etctera. I am attempting to solidify our approach before build season starts. The plan for the sides is to use solid steel 1.5x1.5 in stock bolted to the robot with 1/4in thick u channel going over it and a 1/2 in diameter pin going through both. The front and back will be simply 1/4in thick u channel that goes over the box tubing of the frame, with the same 1/2in diameter pin going through. Please check out the attached renderings and let me know any feedback you might have. If it would help, let me know and I can also post the CAD and/or BOM!
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Go with what you know will work, and try a little less if you are feeling brave. That is my rule of thumb. - sanddrag [more] 
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