>dustbuster type units that have a motorised brush head. It'll suck more
>current but it's got to do a better job.
>
>The electrolux vacuum robot uses a motorised brush as can be seen in their
>patent (5781960).
>
>Dave.
>
My current project uses the push type sweeper. I believe that I will
require less current draw than a vacuuming unit. Also from personal
experiences of running the Hand Powered version that I need to vacuum much
less often. Since this unit will run during the times I'm not at home and
have chosen a random turn and degree on finding an obstacle. Then again,
"much less" is not a truly quantitative measurement.
Ben