Adjustable Parametric Angle Bracket for Round Pipe like Seat Post or Handlebar

thingiverse

I created this bracket to attach a cargo rack to the rear of my e-bike. The aluminum profiles are designed to receive support from the seat post, specifically a 27mm post in this case. I've included an OpenScad design that can be customized to fit your needs. The stl files provided are for 22mm and 27mm posts with M8 clamping bolt sizes. If you modify the scad file, you'll need to export two design elements as stl and print four of each due to symmetry. The printed plastic will be bolted between metal plates, distributing pressure loads evenly. I used PETG for the prints to ensure they can withstand high summer temperatures without degrading. If you require custom sizes or prints, I may be able to provide them in exchange for a paypal donation. Check out my other bike-related content for more inspiration and ideas.