Introduction: Simple Bots: Hopscotch
Perhaps the name Hopscotch is a bit of a misnomer. This bot doesn't actually play Hopscotch. It is actually more akin to a jump rope or leapfrog. Nonetheless, after watching it go for a while, it just seemed like Hopscotch was the most fitting name. It has that sort of personality about it. Maybe this says more about the way I think than the way the bot acts. I am okay with that. At the end of the day, no matter what we call Hopscotch Bot, it does not detract from it being a fun, playful, self-righting, hoppity, little bot.
Also, if you like this project, check out my new book Homemade Robots for even more!
Step 1: Go Get Stuff
(x2) continuous rotation servos modified for direct drive**
(x1) 4 x AA battery holder
(x1) 4-5/6" x 6" x 3/8" U-bolt and nuts
(x1) small push-broom head attachment
(x2) 4-40 x 1-1/4" nuts and bolts
(x1) assorted zip ties
**Modify your servos for direct drive here
Step 2: Attach
Zip tie them firmly in place.
Step 3: U-Bolt
Zip tie the U-bolt firmly to the servo horn such that it won't slide.
Step 4: Trim
Step 5: Drill
Using your battery holder as a guide, drill two 1/8" holes downward through the brush.
Step 6: Fasten
Step 7: Wire It Up
Connect together the three remaining wires from the motors and battery holder.
Step 8: Tidy Up
Step 9: Batteries
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