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Step 4PVC blades Assembly
Before you start you need to know that the spaces between the spokes vary closer to the centre, so use the wider side of the pvc on the more loose separation between the spokes on the wheel, that is why we Alternated the pvc end...remember.
1- Slide all bike Rims in place first
2-Screw the end rims first, one PVC at a time.
3-Once you finish the end Rims, then you screw down the mid one.
faroun
1- Slide all bike Rims in place first
2-Screw the end rims first, one PVC at a time.
3-Once you finish the end Rims, then you screw down the mid one.
faroun
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the drum or savonius works on tork and most will not excceed 200rpm.
lift is more effecient, but the rpm causes few issues so it has to be build well.
sam
Looking at the photos, I'm thinking that you really cant turn the vanes any more towards the *outside* of the rim because you wouldn't have anything to attach to the rim. The way the vanes are constructed requires the orientation shown. If the builder had left a small ring at either end, that ring could be attached to the rim, allowing the vane to be rotated so that the concave face presents more 'windwardly', but this would make constructing the vanes MUCH more difficult, with little realized difference.
@Faroun:
Have you considered twisting the vanes along their length? As half a pipe, the vanes should have much greater flexibility around their vertical axis. You could rotate the rims w/respect to each other to twist the entire assembly. Would be interesting to see if it had any effect.
I like this design a lot, Nice Job!
regards sam