Just finished construction of the robot with the kids (2 preteen) which was good but frustrating. Finally found that a small straw was great at holding the nuts in place for bolting. I wanted to get it up and running to see if it works. It does but this was not flat enough I think. Failed calibration. Will try on flatter ground with less grass. I am a teacher and have a dream of going into a classroom and having the kids help set it up then cut a puzzle piece each with their name or something on it. I think it would work in a day. I want a frame setup that I can put in the car and move easily and have them help set up. Anyway this did not work as pictured but I will try on shorter flatter grass and maybe make some quick raised stakes or anchor blocks.
Diagonal shade structure worked great for suspending the power cord and the legs fit in the unused spaces that the cables don’t move through.
Did you drive the tent stakes directly through the belt ends? I want to do something similar but with permanent stakes so I don’t have to recalibrate each time.
The first time I tried, I put them directly in the ground, 10 in spikes sold at walmart for camping. The belts seemed to brush the grass too much. My next attempt will be to stake down some small T’s of 2 by fours, maybe a foot across with three stakes each and then mount an anchor or a place to drop a stake in a hole on that little frame. I have not tried this yet. If you did something like that especially with treated lumber I bet it would great for a while outside. I would be careful with roughing out a good rectangle, when I tried with stakes across the driveway I went larger than 5 meters in the square on the sides and the machine can’t normally handle anything larger than 5 meters across. With 1.13 calibration went much faster the times that I had to do it. Maybe only a few minutes so that might make things easier.
Curious if you get this to work. Was recently thinking about driving some PVC pipe into the ground through out my lawn. They can act as anchor points (and golf ball holes for putting…), then having a camera + raspberry pi + opencv feeding gcode to Maslow 4 CNC mill the crap out of my broad leaf weeds. If anyone’s CNC’n their lawn weeds, ~100sqft section at a time, I’d love to know?
Lol. Have you seen the farming laser weeding robots?