Mowrobot Wheel

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Update_17th_May_2020: Now that a couple of weeks have passed and the robot is finally doing a good job I'd like to give you an update what has happened in the meantime to make it so: The first couple of days at the end of March and the first couple of days in April weren't bad, but not perfect. Then it started with the really good weather and the turf started getting dry and hard. The tractor tread is not ideal for our clay-rich earth, that gets rock hard as it dries. The tread just scrapes away on the hard surface and doesn't find any grip apart from the gras that inevitably gets schredded, when the robot gets stuck on the sand box or whatever. Then I mounted the spiked wheels again and it got better. Still not perfect though. In the end I finished up modifiying the flexible pillars attaching the body to the chassis. I took an angle grinder with a 4mm thick !!used!! cutting disc and inserted a slot at both ends - reducing the stiffness and making the collision detection alot more sensitive. The used cutting disc is very important, because it gives you an nice rounded slot, preventing the rubber from tearing there so easily. I fear there is no perfect wheel tread for all conditions like it is with car tires for summer and winter. I'll upload the file for the spiked wheel and the pictures of the modded pillars to give you an idea what to do. But all in all I'm happy with the result, because instead of having to save the robot during its mowing mission (multiple times) every day, this has come down to once or twice a week. These incidents are mostly due to our kids toys being left hidden all over the garden and not the robot getting stuck somewhere. The first days I had already gone looking for the robot out of pure habit just to find it happily charging on the base. --------------------------------------End of update--------------------------------------- This is the fourth version of a new set of wheels for our lawn robot. The orignal set was literaly ground away, when the robot got stuck on objects in the garden where the grip wasn't good enough to make the collision-detection work and therefore kept the wheels going until the battery was dead, or he was rescued. Obviously a simple line of programming with a time limit without hitting the wire barrier would have fixed this, but as it's a cheap Mowrobot - what do you expect? So here it is, supposedly the best version jet, it's already mounted on the robot and waiting in the cellar to prove itself in the mowing season to come. BTW: This fits on the Yardforce SA600 and its derivates such as the rebranded Mr. Gardner and Florabest versions.

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