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From: zen cycle <funkmasterxx@hotmail.com>
Newsgroups: rec.bicycles.tech
Subject: Re: rec tech mower
Date: Wed, 16 Apr 2025 05:35:59 -0400
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On 4/15/2025 5:58 PM, AMuzi wrote:
> On 4/15/2025 4:42 PM, Frank Krygowski wrote:
>> On 4/15/2025 2:33 PM, Jeff Liebermann wrote:
>>> On Tue, 15 Apr 2025 13:29:16 -0400, Frank Krygowski
>>> <frkrygow@sbcglobal.net> wrote:
>>>
>>>> On 4/15/2025 8:39 AM, AMuzi wrote:
>>>>> On 4/14/2025 9:48 PM, Frank Krygowski wrote:
>>>>> I'm not an expert but there were or are corded electrics as I knew
>>>>> someone who loved his. Assuming your house is roughly centered on the
>>>>> lot a 100ft cord would do.
>>>>
>>>> I know those exist, but there's no way it would work. I just counted,
>>>> and there are at least 13 "islands" of landscaping, large trees or 
>>>> other
>>>> obstacles I have to cut around. They'd require far too much
>>>> backtracking, etc. if I were dragging a cord.
>>>
>>> Perhaps a robot lawn mower that goes around the trees?
>>> <https://www.google.com/search? q=robotic%20lawn%20mower&udm=2>
>>> <https://www.youtube.com/results? search_query=robot%20lawn%20mower>
>>
>> I've been paying attention to the development of those for years. 
>> There are now a couple models that don't require the buried wire 
>> barrier systems (like Invisible Fences for dogs), but use some local 
>> electronics that enhance GPS for precise location. Supposedly one can 
>> manually steer the mower around the lot and "teach" it where to mow 
>> and what to avoid. They're quite pricey, though! I've got about 25,000 
>> square feet to mow, and the Luba brand capable of that is about $3000. 
>> That would get me a lot of teenager hours, if I can recruit a new one. 
>> Also, its level of technology makes me worry about long term reliability.
>>
>> I had a thought about a simpler alternative that would require far 
>> less technology. I'm not a guy that wants beautiful lawn stripes, so I 
>> usually mow by cutting the perimeter clockwise, then working my way 
>> inward, always straddling the boundary between "that's cut" and 
>> "that's not cut." Seems that a self propelled mower should be able to 
>> do most of that on its own, if it could reliably tell the difference 
>> between "cut" and "not yet cut." The "steering" logic seems pretty 
>> simple, based on separate drives for the left wheel and right wheel 
>> (or perhaps, left and right "tank tracks" to handle lawn lumps and 
>> holes).
>>
>> But I haven't been able to dream up a sensor system, especially 
>> because in dry times, there will be patches that are very non-uniform 
>> height. (My lawn is a diverse ecosystem, the farthest thing from a 
>> putting green.) Machine vision could probably do it, but that's very 
>> complex.
>>
> 
> 
> I bricked in my front yard at a house I owned. Very happy with that over 
> the years,  and no mowing.

Scene: Boardroom of The World Wide Wicket Company

J. B. Biggley (boss of the World Wide Wicket Company):
[to Bratt] That stuff you recommended for my crabgrass doesn't work at all.

Bert Bratt (personnel manager):
I can't understand it, J.B. It worked beautifully on my lawn.

Biggley:
My lawn is still a mess. Better come up with something new.

Bratt:
Right, J.B.

Bud Frump (Biggley's arrogant and lazy nephew):
We never have any trouble with crabgrass at our place.

Biggley:
What do you use?

Bud:
Cement (laughs at his own joke).
(They all look at him.)
Sorry, J.B. Just a little joke.

Biggley:
Gentlemen, you will excuse my nephew. It's a combination of youth, high 
spirits and
extreme stupidity....

 From How to Succeed in Business Without Really Trying (Loesser and 
Burrows musical)

>