Amost ready with my build and this is a worry. The shaft couplers I bought are all not fitting tight.
When reading this thread I thought i would be interesting to see if Hiorth’s design could be combined with prints I made for th PM setug (duct, gearbox mount, etc).
This is what I came up with yesterday. Its not all there yet but it captures the idea. Its about 3cm longer than the orignal, to make space for the coupler and bearing retainer. It still has the M40 thread for the duct. But perhaps this needs to ditched to make it more robust. I would like to make it shorter too.
@hiorth Hi Hiorth. Borrowed your idea for my setup. I noticed in the text that you recommend steel as material. I am not sure if you were specifically referring to the bearing retainer ring or the whole assembly. The latter would be an issue for me haha.