Hi Guys
Thank you for joining my thread and helping me.
Today I met Dieter Albisser and bought a new Turbine wheel and shaft. The chinese turbinewheel sweeps so badly that I could not use it. This Albisser Turbinewheel looks absolut great... I will show you some pictures later.
The progress on the turbine is quite slow. Tried designing the difuser inlet, so that I can CNC turn the whole inlet. I do it from black POM.
Hope that 1.5/10 mm of space all around is OK or should there be almost zero mm space at the difusers end? Not sure if that would work out when fireing up the turbine for the first time.
Did also some spreadsheet calculation for resonance vibrations. These results showed me that I would need a bigger/stronger shaft for rotational speed more than 100k (I saw that Gerald drawed also a bigger shaft on his documentation). But Dieter Albisser mentioned that tey used this standard kj66 shaft also for heavier wheels and more than 123k speed. Hope that's ok as well.

PS found an other cool guy who is doing quite the same here his Webpage: http://www.bigscaleheli.com

Best regards Lukacs<br type="_moz" />