Anyone going to be at Arlington??? I will be there Saturday so look
me up if your there.
Ken Welter
Ken do you have any dwgs on your belt drive?
Got any pulleys for sale? What belt are you using?
What max RPM are you running. Jerry is thinking of
building a belt drive for his one rotor.
--
Paul Lamar ...No rotor no motor.
No dwgs or pulleys, the belt I use is a 8mm X 85mm and would not
run any narrower belt on the single rotor as the power pulse is the
same as a two rotor in fact maybe more.
Ken
Can you make more pulleys or is there an aluminum one available?
I can do the dwgs from scratch.
Paul Lamar ...No rotor no motor.
> Yes I can make them but the aluminum price has gone out of site, it
was $300 for the slug for the big pulley about four years ago the,
the lower one is steel, also the price to have them hobbed will be
higher on a single run where I was doing five sets at a time before
so I would have to research the price.
> Also I think the weight will be way to heavy for a single rotor.
> Ken
Hi Ken,
Do you have any thoughts about making the large pulley from three pieces? The
outside could be 10 or 12 inch heavy wall tube or pipe hobbed
whatever length your
vendor could do, then "slices" could be utilized. The wall would
need to be thick
enough to provide for machining an internal flange. Mating to the
flange would be
a disk cut from plate stock. In the center of the disk a bar stock
cylinder with a
step can be inserted and bored concentric to the hobbed OD. All
three pieces could
be a bolted assembly ( welds might crack in this application ). This
approach would
save pounds of expensive aluminum chips. Same idea but maybe
lighter. Sandwich the
"slice" with a thin plate on each side rather than one central thick
plate. This should
provide a box-beam effect. Paul may have a better idea if the two
thin plates are worth
considering
Dave M
You can get a lot of weight out of a belt drive if you have an NC mill.
Paul Lamar
Sounds way too complicated to make it out of three pieces, the
weight of the one piece is only 9 lbs for a 12 inch pulley so that
would be hard to beat.
Ken
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