37 Pin Circular Connector for Molex Pins
thingiverse
EDIT 2020-10-15: Made a bunch of small tweaks after more testing. Thickened up some parts, optimized a few areas, etc. Better pin fitment, threads work better, overall stronger. EDIT 2020-10-12: Tweaked the sizes of things slightly to allow 0.4mm nozzles to print the holes properly. Please use the latest version as the original doesn't print properly on many stock setups. A decently low profile circular connector using molex pins. I used this to pass wires through the firewall in my car to the engine bay. These are the pins used: https://www.amazon.com/gp/product/B073T6RVD3/ I printed using PETG for the extra durability and heat resistance.
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