Tesla Turbine

thingiverse

Here is the rewritten text: It's all about showing off an idea for making a Tesla turbine rotor from a 3D printer. The shown turbine basically works. As for efficiency rates, I'm not in a position to make any statements. My goal here is to inspire designers to develop their own turbines! By setting the rotor blades at +/- 45°, you can build the rotors completely without support structures. This should not cause any major issues with functionality! In my concept, some additional thoughts have been incorporated that might spark further ideas. In all Tesla turbines I've seen, the largest cross-sectional area is in the intake area. With every other (gas) turbine, the cross-sectional area increases because of expanding gas. I've tried to keep the cross-sections at least somewhat constant. Much more isn't possible due to geometry constraints. The fact that the rotor blades, in my concept, have more clearance towards the shaft may also be a thought error...I'm not an expert in this field and would greatly appreciate corresponding comments! If you want to build my turbine, keep the following points in mind: 1. It's far too large. The turbine requires a massive volume of air as input, but very little pressure. I operated it using the exhaust from an industrial vacuum cleaner. 2. The bearings are 22x12x8 or 22x10x8. It makes sense to wash them out (the grease). 3. The housing is multi-part to print because, in this first version, I couldn't do without supports. To remove them, the part needs to be disassembled. 4. The printer must be extremely accurately calibrated, and this part requires additional work! The housing has only 0.2mm clearance from the turbine. The wheel must spin absolutely freely. I applied a lubricating coating (be careful with the bearings).