Project | Lawn Dog Robotic Lawn mower

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Spiked solid rubber tires gives super grip
03/30/2018 at 14:38 • 1 comment

I used a box of 100 screws and drive them into the solid rubber tire, the screws seemed to work really well at holding grip. I may consider moving to a all rubber tractor tire , but this is working fine. The screw heads stick out .5 inches. I will clean them off and coat the tire and screws with a thick coat of liquid rubber from plastidip so I can keep them from scratching the driveway and also have matching black wheels / tires. This guy also needs a paint job !!
Maiden voyage, first time cutting grass RC
03/30/2018 at 14:31 • 0 comments

First time out in the yard with high grass, I immediately noticed that the wheels are too slippery to keep any grip. I will try some other options to get good grip on the soil without damaging the yard.
This is controlled in RC mode there.
Adding electronics
03/30/2018 at 14:22 • 0 comments

Sabertooth 2 x 12 motor controller to power the motors from two 24 volt lawn and garden batteries..
Front wheels swapped to omniwheels
03/30/2018 at 14:18 • 2 comments

These are 8 inch omniwheels, two meshed together I found online, andymart.com
I had to tap on bearings on the original axle the mowers wheels came off of. Two bearings support one wheel. one inner and one outer with a bold on the outside.
First movement test
03/30/2018 at 14:14 • 0 comments

The Jazzy and the mower are together for the first time. I had an initial movement test and took a video.
making a flex bracket to connect the mower
03/30/2018 at 13:52 • 0 comments
Cutting down the jazzy power chair chassis
03/30/2018 at 13:49 • 0 comments

The jazzy has a lot of parts I wont need, like the stalk on the top for example. I want to do something to get more grippy wheels as well. In this picture I removed the center post that bolted in.
Remove the wheels and add an axle
03/30/2018 at 13:33 • 0 comments

Ok so I picked up some hardware. 1/2" steel zinc threaded rod , nuts, wing nuts and lock nuts. Should be able to basically slide the shaft in or out by unscrewing a wing nut when done. I removed the original axle and it appears to fit in fine.

Next I need to pull out the grinder and cut away the center post that is in the way and drill out all the holes the shaft will slide through to 1/2"
Posted at 8/22/2017 7:16:38 PM
03/30/2018 at 13:30 • 0 comments

started stripping down the jazzy and removing brackets , wires and controller that will not be used, it has a circuit breaker set for 30 amps , hmm I wonder if I will leave it in, 15 amps max per battery is not a very high ceiling.

Anyways as always feedback is welcome