[papercreters] Re: MIXERS; - lawn mower engine?

i agree - a clutch would be necessary to get the thing going, and restart the engine if it stops.  ideally, a transmission would be useful, lower gear for higher torque for mashing up fresh fodder. but clutch and gearbox adds complexity, and requires mechanics to put together.  that's why i suggested different size blades, a small blade for thrashing up the paper/cardboard, moving to a larger blade for mixing slurry.  a slipping-belt clutch is fairly easy to construct, and would allow you to "gear down" the output of the mower engine.  or if you can spend the money a belt driven torque converter would do the trick:  http://www.ebay.com/itm/1-40-SERIES-GO-KART-TORQUE-CONVERTER-  the advantage to a lawn-mower engine is the vertical shaft.  a horizontal shaft engine would require a means of re-directing the output to drive a vertical mixing shaft.  my first thought was a motorcycle engine - has clutch, has transmission, but horizontal shaft output.  that's another kind of engine in abundance in the rest of the world, cause they use 90-125cc motorbikes for transportation everywhere.  and they do end up in wrecks...

i haven't built any of these ideas myself mind you, i'm working out the concepts.  the group has some wonderful experiential feedback.  for those folks who don't have a vehicle that can tow a mixer, or who want to mix PC close to where it will be used without having to haul it from the road uphill to the building site, a small motor powered mixer makes sense.


--- In papercreters@yahoogroups.com, indiakarl <indiakarl@...> wrote:
>
> perhaps it's already been done, but i was thinking that a vertical shaft lawn-mower engine might make a suitable power source for a non-towed mixer.  .....  you might even go with a shaft that has a keyway that fits the drive end of the motor, so you could take off the  mixer shaft.  you could have a small "pulping" blade that would thrash the paper/carboard material to pulp, then a larger blade that would be good for mixing in the concrete.

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