14mm OD Hard Tubing Bend Mandrel

thingiverse

I didn't want to spend $40+ on a bending mandrel to use for 4 tubes one time, so I drew this up quickly. There are bends for 90 and 45 degrees, as I figured 180 wasn't that commong anyway. It's set for 14mm OD tubing. Smaller should work just fine, though, and I'd imagine that 16mm OD would kinda work too. Worst case, scale it up by 5-8%, as the channel diameter is just a hair over 15mm, but I can't confirm if this will fit. Anyway, it worked great for me and made bends easier. I printed it in PLA and had no issues with putting warm/hot PETG tubes on it to bend. This is also my first Fusion 360 design. I've used OnShape historically and figured I should make the jump at some point, so it may not be the best design. I've included the .step so you can do whatever you want with it. Best of luck!