[mowbot] cutter, power

robin nospam at acm.org
Thu, 26 Sep 1996 02:08:52 +0100

Dominic Peterson <d.peterson nospam at qut.edu.au> wrote:
> Two plates like this (say 6mm thick) are mounted on top of each other with
> one (probably the top) fixed and the other able to oscillate left-right by
> the tooth width (5mm in the example).
> ... It should be fairly power efficient too as the moving
> elements are relatively light and moving fairly slowly and the cutting
> acting is 'two cutting edge scissor-type' rather than 'single, fast-moving
> edge cutting against the inertia of the blade of grass'.
My thoughts exactly.

> The most difficult part of this is finding one or making it from scratch.
Quite so. Time to trawl through garden supplies and DIY shops I think.

> I'm going to do a bit of experimenting (aka skinning my knuckles and
> reminding myself about my limited metal-working skills) and I'll report
> back to the list with my results.
Great! Hope you succeed. If you do, bear in mind you'll be getting
orders for 20!

> I've seen some truly SCARY numbers quoted for estimated power consumption
> here over the last few days. 10A at 12V is an awful lot! I think
> something below 5A continuous for all of the system (not just cutters, but
> drive etc) should be easily achievable.
Gosh, I seem to be agreeing an awful lot here!


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