"Bob Minchin" wrote in message
...


Bob ... very interested in this ... have you made a set of drawings
for this ? ...... (or is that being to cheeky)

Not at all cheeky just naive! LOL

The con rod was made the same way as the arms but longer. same 35mm
bearings. Bought a pack of 10 off fleabay - stupidly cheap.
Even the pillow blocks for the crankshaft were less than a fiver each.




Bob ... thanks for that, the crank seems to be the biggest troublesome item
..... wood work side no problem, but I no longer have access to a lathe.

I'm assuming the somewhat complex motor arrangement was just to use what you
had ? ...
A suitable 1/2 hp 1ph induction should do the job, key would be getting
toothed belt step down ratio correct.
Thinking here that a cement mixer motor would have enough ooomph.

Or do you find variable speed is needed ?

Did you get the bearing supports of ebay as well ? ..