Robot mowers

Author
Discussion

durbster

10,277 posts

223 months

Saturday 13th April
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I posted earlier that my charging station had died but replacing it didn't work, and it turned out the power supply had gone as well. Somehow both ended up dead so I'm guessing water got into the transformer, which did something that took out the charging tower too. I'm now £270 lighter but Rolly is back to work.

I was quite surprised the power supply failed but the supplier said if it's exposed to the weather, then 5 years isn't an unusual lifespan, especially with the relentless rain we've had in the last few months.

I thought I'd share this because I think quite a lot of mowers use the same Husqvarna power supply (I believe the Flymo 1200R included), and you might want to consider protecting it from the elements if you haven't already.

dhutch

14,390 posts

198 months

Monday 15th April
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Talk to me about guide wires.

Just come to get the 'Mow mow mow' out and connect it back up, knowing that I got a break in the boundary wire at the end of last year, so got the multi meter out on 'beeb mode' stripped off the ends at the guide joint and started a few tests, not a dicky bird!

Ended up pulling up the guide wire (Flymo cable, surface laid) and its came up in about six bits, snapping at each point where the outer had obviously been nicked and allowed the core to corrode. The nicks that didnt snap, where pretty obviously, nick in outer, inner swelled and corroded, load of oxide powder. Had to cut back maybe 50-60mm to hit good cable. Which appears to be tinned copper in a fairly tough black outer.

Then ended up doing the same with one side of the boundary cable (SHS/Rasenfreund cable, surface laid) which again had two failures in it, one snapped when pulling it out, but the other I couldn't see at all. Ended up cutting the cable in half about four times till I had the dead section narrowed down to 1m. Looked the same as the good bits, but cutting it further I did find about 100mm which was corroded and weaker. Cable appears to be copper, bare, very fine strands, outer is a bit thinner and softer but still not thin wall as such

Fortunately the other side was ok, about 2/3 of the perimeter of which 1/3 was buried and the other side was surface laid including a section where the grass dies back exposing the cable over winter due to a larger hedge.

Maybe I didn't do a good enough job at pinning it down, especially during some early trials, and perhaps this picked up the cuts in the outer. I avoided buying anything claiming to be CCA wire or substantially thinner gauge, but otherwise as it was just trailing it out was somewhat lead by price which was maybe a mistake.

If I have enough left on the reel I might just repair with the wire I have and bury it, but does anyone have any suggestions of more durable wire?

Hopefully its not going to be a case of having to relay half of it every spring?

dhutch

14,390 posts

198 months

Monday 15th April
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Frimley111R

15,674 posts

235 months

Monday 15th April
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I bought this for mine, it's thicker than the std stuff https://www.ebay.co.uk/itm/185363734563

dhutch

14,390 posts

198 months

Monday 15th April
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I have just done some digging, and it appears that both the cable I bought and the one you linked to are infact CCA, which explains the white oxide products, as well as way it so spectacularly disintegrates when wet. The product you linked to is atleast tinned like the Flymo own brand stuff which I suspect is also CCA.

Seems like such an odd application to use copper clad aluminium, but maybe its as good as anything else as long as you dont nick in the insulation, and if you do nick the insulation even pukka tinned copper fails prematurely? It does explain why they are so keen on you leaving a good length to allow you to re-terminate the cable!

fiatpower

3,043 posts

172 months

Monday 15th April
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My Flymo guide wire has been down 4 years now with no real issues on the wire side of things. The only issues i've had are where foxes (I assume) have dug it up and cut/chewed the wire. I now have multiple sections which are joined with the block things which I would suggest are a potential weak point but had nothing fail yet.

Mr Pointy

11,234 posts

160 months

Monday 15th April
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dhutch said:
I have just done some digging, and it appears that both the cable I bought and the one you linked to are infact CCA, which explains the white oxide products, as well as way it so spectacularly disintegrates when wet. The product you linked to is atleast tinned like the Flymo own brand stuff which I suspect is also CCA.

Seems like such an odd application to use copper clad aluminium, but maybe its as good as anything else as long as you dont nick in the insulation, and if you do nick the insulation even pukka tinned copper fails prematurely? It does explain why they are so keen on you leaving a good length to allow you to re-terminate the cable!
It looks like copper cable is about twice the price:
https://www.ebay.co.uk/itm/395174382192

Surely burying it is the answer?

h0b0

7,609 posts

197 months

Monday 15th April
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fiatpower said:
My Flymo guide wire has been down 4 years now with no real issues on the wire side of things. The only issues i've had are where foxes (I assume) have dug it up and cut/chewed the wire. I now have multiple sections which are joined with the block things which I would suggest are a potential weak point but had nothing fail yet.
I made the mistake of leaving the base station turned on over Winter. I have now repaired 6 sections of broken wire and still have one to find. I think the squirrels can sense the cable as I often find the hole they have made right above the wire.

Zoon

6,707 posts

122 months

Tuesday 16th April
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h0b0 said:
I made the mistake of leaving the base station turned on over Winter. I have now repaired 6 sections of broken wire and still have one to find. I think the squirrels can sense the cable as I often find the hole they have made right above the wire.
I think you are meant to leave it on.
To stop problems with frost, if I remember correctly.

dhutch

14,390 posts

198 months

Tuesday 16th April
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Zoon said:
I think you are meant to leave it on.
To stop problems with frost, if I remember correctly.
I unplugged mine and stuck it in the garage with the mower!

Zoon

6,707 posts

122 months

Tuesday 16th April
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dhutch said:
I unplugged mine and stuck it in the garage with the mower!
Yes if you don't unplug it and store it inside I think you are meant to leave the base powered up.

dhutch

14,390 posts

198 months

Wednesday 17th April
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Related question.

What if anything are people using for Boundary Switches?

I need to have a temporary line to keep the 'mow mow mow' of the daffodils each spring, so need a pair of switches, just a spst on/off switch, but clearly needs to be outside in all weathers and hopefully a neater solution to just a male and female spade connection smothered in silcon grease!.

The genuine lawn ones are £40 and huge, so must be able to do better than that!
https://www.husqvarna.com/uk/robotic-lawn-mower-in...

dhutch

14,390 posts

198 months

Wednesday 17th April
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dhutch said:
dhutch said:
ruggedscotty said:
dhutch said:
Good source for a compact, fully waterproof, on/off switch for outdoor ELV duty?

Only needs to be SPST and can be gel/silicon filled or the like but will live in the hedge bottom switching a robot lawnmower boundary wire between spring and summer zones.


The 'proper thing' is £40 and a huge black monstrosity so that's right out.
Link: https://www.ebay.co.uk/itm/314679348776?
Yeah, saw that exact item, looks ok. Do you have an experience of using them? Else cheap enough to take a punt.

I need three.
Thanks.

Ordered three of what appears to be the same thing from this seller at they claim to have UK stock.
https://www.ebay.co.uk/itm/134987568733
I'll let you know how they go!

h0b0

7,609 posts

197 months

Wednesday 17th April
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Zoon said:
h0b0 said:
I made the mistake of leaving the base station turned on over Winter. I have now repaired 6 sections of broken wire and still have one to find. I think the squirrels can sense the cable as I often find the hole they have made right above the wire.
I think you are meant to leave it on.
To stop problems with frost, if I remember correctly.
I am up to 10 repairs now and still no luck. I am at a stage where the radio technique of finding any breaks no longer works. I have had the green light briefly twice. But, a few minutes later I am back to flashing blue. My last attempt to fix the cable was to replace a large section to remove several repairs but still no luck.

Reading around and I see many others have seen degradation of the cable after several years. When pulling out the section it kept breaking in my hands far too easily. I suspect I neeed to bite the bullet and reinstall the entire cable. Going to pay someone this time.

mrpbailey

975 posts

187 months

Wednesday 17th April
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My flymo easilife is currently doing the same as it did last year at the start of the season, refusing/playing up with charging, then setting out to cut and throwing up a low battery error. Goes back home to charge but then after 24 hours on charge the same cycle repeats. Also played dumb on its first startup, was like a new 1st time install, choose country/lawn size/new pin etc.
It did this exact thing last spring but then sorted itself out and worked perfectly til winter when I put the mower and charging station away in the garage.
Not sure if it’s a battery, station fault or something else.

dhutch

14,390 posts

198 months

Wednesday 17th April
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h0b0 said:
I am up to 10 repairs now and still no luck. I am at a stage where the radio technique of finding any breaks no longer works. I have had the green light briefly twice. But, a few minutes later I am back to flashing blue. My last attempt to fix the cable was to replace a large section to remove several repairs but still no luck.

Reading around and I see many others have seen degradation of the cable after several years. When pulling out the section it kept breaking in my hands far too easily. I suspect I neeed to bite the bullet and reinstall the entire cable. Going to pay someone this time.
Sounds familiar.

I've ordered 100m of the Grimshom 'Premium' tinned copper core cable so I'll see how that goes. Same as linkes to above but a fiver (10%) cheaper bought direct from their website rather than eBay shop.

https://www.gardenhirespares.co.uk/2647-100m-signa...

BGARK

5,494 posts

247 months

Thursday 18th April
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100 pages to check through!

What is the BEST quality robot mower for large gardens, 1 - 3 acres no boundary wires wanted, lots of trees, bushes, obstacles and debris.

Not concerned about the price, I appreciate for what we want it will not be cheap.

Thanks

h0b0

7,609 posts

197 months

Thursday 18th April
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dhutch said:
h0b0 said:
I am up to 10 repairs now and still no luck. I am at a stage where the radio technique of finding any breaks no longer works. I have had the green light briefly twice. But, a few minutes later I am back to flashing blue. My last attempt to fix the cable was to replace a large section to remove several repairs but still no luck.

Reading around and I see many others have seen degradation of the cable after several years. When pulling out the section it kept breaking in my hands far too easily. I suspect I neeed to bite the bullet and reinstall the entire cable. Going to pay someone this time.
Sounds familiar.

I've ordered 100m of the Grimshom 'Premium' tinned copper core cable so I'll see how that goes. Same as linkes to above but a fiver (10%) cheaper bought direct from their website rather than eBay shop.

https://www.gardenhirespares.co.uk/2647-100m-signa...
I cut out a large section of wire and got Geoff up and running. He was happily munching away all night and this morning.

About an hour ago I hear my neighbours dog barking and look out to see Geoff dead with dog staring at him. Not sure what happened as it is blue light flashing again so unlikely to be the dog.

Neighbours dog then has a pee on my grass and then jumps back into their garden. We have complained about the dog being in our garden before and they suggested I put up a fence.


snobetter

1,162 posts

147 months

Friday 19th April
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BGARK said:
100 pages to check through!

What is the BEST quality robot mower for large gardens, 1 - 3 acres no boundary wires wanted, lots of trees, bushes, obstacles and debris.

Not concerned about the price, I appreciate for what we want it will not be cheap.

Thanks
https://www.autocut.co.uk/ Husqvarna

Frimley111R

15,674 posts

235 months

Friday 19th April
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BGARK said:
100 pages to check through!

What is the BEST quality robot mower for large gardens, 1 - 3 acres no boundary wires wanted, lots of trees, bushes, obstacles and debris.

Not concerned about the price, I appreciate for what we want it will not be cheap.

Thanks
Just watch a few YT vids, look at reviews online and on Amazon. As it'll be pricey I'd imagine all will be very good.