Regular Member
Joined: 12/01/2011
Location: AustraliaPosts: 62
| Posted: 01:59pm 16 Feb 2011 |
Hi all
I am collecting parts to build a hybrid remote controlled
lawnmower, which when completed will allow me to mow
a very steep (30-40 deg) bank. I plan to use a two stroke
pope motor that I have, as this type doesn't fuss about running
at extreme angles. The motor will run the blade disc and a
small car alternator which I have ready to go. I plan to run
four gearmotors that I salvaged from a wierd mobility scooter
with the front two reverse linked to the rear two to facilitate
four wheel steering. The motors will be steered via a small
servo of some kind. (still trying to find this part) I plan to vary
the field voltage to the alternator to facilitate speed control
and regulate & charge a small battery pack for the RC and
steering servo. No engine throttle needed as the pope is
governed. I'll use a rover SP deck as it has a belt hole behind
the crank which will allow easy mounting of the alternator.
The wheels will have negative camber, wide track and nobbly
tyres to keep CG down and minimise rollover, but I'll also fit
a couple of hoops to help it roll back onto it's feet if the
inevitable happens. I've nearly slid under the self propelled
mower too many times for comfort on this crazy bank.
One neighbour wants one if it works for a gully on his block,
however it runs to near vertical about two thirds the way down
so I think he'll need tank tracks and lots of luck..
Amc-elec