Simple Bots: Scrub
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As part of my effort to make our life easier through robotics, I have made a low-cost cleaning bot called Scrub Bot. This state of the art cleaning robot is great at polishing floors and shining glass tables (provided that you soap it up first). It also disperses small particulates evenly across your floor in such a manner that your home may look cleaner than it actually is. That's not all! Thanks to its unique non-patented frisbee design, Scrub Bot allows you to easily add all of your favorite thingamajigs and what-nots directly to the bot without wondering where to put them. Create a circuit to toggle each motor independantly for a more "intentionally driven" effect. What are you waiting for? Make one today! Everyone, but your pets, will thank you.
Check out my book Homemade Robots for more projects! |
Go Get Stuff
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You will need:
(x1) Frisbee
(x3) Scrubber brushes
(x3) Adjustable tracks
(x2) Computer fans (of the same size)
(x1) 9V battery connector
(x1) 9V battery
(x6) 1-1/2" bolts
(x18) nuts for 1-1/2" bolts
(x6) 1/2" bolts and nuts
(x1) a bunch of small zip ties
(Note that some of the links on this page are affiliate links. This does not change the price of any of the items for sale. However, I earn a small commission if you click on any of those links and buy anything. I reinvest this money into materials and tools for future projects. However, you are obviously free to source the items as you please.)
Drill Holes
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Drill holes in the end of each scrubber brush such that you can later bolt on the adjustable track parallel along its length.
You can use the ends of the track as a drilling guide.
Attach the Track
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Insert one or two nuts to space the track off of the scrubber brush in such a way that the middle slider can move freely.
Insert the bolts into the hole on the scrubber brush and fasten it on with another nut.
Mark for Drilling
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These marks should be made in such a way that it splits the frisbee into even thirds.
Drill
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Fasten
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The brushes should now be acting to create a tripod to support the frisbee.
Vibrating Motors
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You should try to avoid making them evenly symmetrical by cutting off the fan blades in a different pattern on each fan. This will give it a little bit more of a unique mobility.
Zip Tie
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Also, you may want to consider connecting them together in such a way that the wiring on each motor, is roughly across from each other.
If done right, the 9V battery should be held firmly in place and the motors should spin freely.
Trim off any excess zip tie bits when you are done.
Wire It Up
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You may want to solder them and cover them with electrical tape for a more reliable connection.
Drill More Holes
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Use your fan assembly as a guide for drilling the holes.
Put It All Together
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Zip tie each corner of the the fan assembly to the frisbee using the holes you drilled in Step 10. Trim off the excess zip ties when you are done.
Get Going
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Plug in the battery and you are ready to clean.
Placing the brushes in differing positions creates different patterns of motion.
Try experimenting.
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