About this 3D model

Summary Tried to build my own "Berd-Air"-style tube. As there are no tube bender available on thingiverse that allowing to bend a 360°- circle, I had to design my own. The procedure of bending is quiet simple: 1.Things you need: aluminium tube (3mm od) screws: 1 x M3 x 10 mm 1 x M3 x 20 mm 1 x M3 Nut (not necessary) 2 x M6 screws (as lever) drill (I took 1,5 mm) plier and a 3D-printer of course ;-) Things to print: 1 x U-form 1 x Retainer 2 x Wheel big 1 x Wheel small Drilling template (the one you like. Template 1 has an angle of 45° to align the drill more easily) Assembling: Clamp the end of the tube with a plier to protect air leake Mount the Tube bender as shown in the picture. (The large wheel consists of 2 parts to facilitate disassembly at full bend). Bend the tube Drilling holes Calculated, the optimal drilling angle should be 18.4 degrees. I have tested this angle and found a problem: At this angle, a lot of air escapes towards the hotend and influences the printing temperature. The best angle so far as a compromise of temperature stability and cooling, I have now found at 45 °. If you like my design, leave me a like or comment if you have an idea to improve it :) edit: added a Retainer with vise mount. Could be a little more difficult to print. I ordered the pumps in germany from pollin electronics: 12 V version: https://www.pollin.de/p/luftpumpe-daypower-lp36-12-12-v-330071 24 V version: https://www.pollin.de/p/luftpumpe-daypower-lp36-24-24-v-330072 Print Settings Printer: Hypercube Evolution Rafts: No Supports: No Resolution: 0,2 mm Infill: 40 %