This is Bob, our 3 ft tall house robot using the Ez-Robot kit and leftovers from plastering angle beads (lengths of perferated coated- right angle tin use to finish edges of plasterboard).
The angle beads are super cheap, can be cut to any length and can be easily riveted together. The big plus is the material is super light but strong. Bobs head comprises of 2 X 1.25 ltr plastic bottles. We are soon to retrofit Bob with Electric drill motors so he can venture up the driveway and down the street.
By Hazbot
— Last update
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I think you made a good buy for that tank! is fast, good speed, I saw that you use a lipo battery, this is good but very light, if I could add more batteries in the robot base or replace it with a battery lead pordrian reduced oscillations of the robot to accelerate and stop (lower center of gravity) Maybe a 5 amp 12v and not 12v and weighs as much as 7 Amp. His robot amazes me, for me the best robot which satisfies these requirements: Much with so little CONGRATULATIONS.:)
Thanks guys, in many ways you have all helped the development of Bob and I thank you for that. Now he is definitely up for a design improvement to lower his centre of gravity. I'm thinking of receding the front of his frame from half way up to give him a chest and emphasize his arms and shoulders. Battery placement is another thing I will be experimenting with to help his balance. Of course my son Austin enjoys racing Bob around with arms waving and shooting those stinging plastic pellets from the base - they sting when you cop them in the ankles - ouch.
UPDATE - Bob has had a design change. His front is elongated as in the coming months I'm having a small touchpad pc valcro'd to his chest. This body was thrown together in a few hours and is in test phase, more of a custom fit to the tank base and give Bob a sleeker but somewhat Sumo look. His stability has greatly improved. Again, special thanks to Richie from Richie's RC and Robotics for getting Tanks transmitter working properly and adding a few spares. Richie you servos are holding up well, your quality parts and service are excellent.
He looks better..... Good job!
Thanks Hazbot, I'm more than happy to help and you know how much I hate playing with other peoples toys...LOL You didn't tell me that you are planing to strap a PC to BOB that will be awesome. You will have to let me know how the 20amp H-bridge goes once you get a chance to test it. (only $25.00 plus shipping people)
Richie's RC
Thanks Richie, I'll keep you posted on that H-bridge. Right now I'm testing the limits on how far the tank base can take him since you solved the RC signal glitch. Video of him getting up the steep driveway soon. I'm happy to say he made it (about 40 meters return trip from house to letter box and back.
This is a true milestone video of Bob making his way up our driveway and back. He nearly toppled over a few times (it is much more steep than it looks).
That's awesome!!!!