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Simple Bots: Skitterby randofo on February 27, 2011

Table of Contents

Simple Bots: Skitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Intro:   Simple Bots: Skitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 1:   Go get stuff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2:   Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 3:   Attach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Step 4:   Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Step 5:   Secure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Step 6:   Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Step 7:   Drill and fasten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Step 8:   Center and drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Step 9:   Attach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Step 10:   Measure and drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Step 11:   Attach the legs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Step 12:   Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Step 13:   Wire it up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Step 14:   Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Step 15:   Glue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Step 16:   Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Step 17:   Case closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Related Instructables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

http://www.instructables.com/id/Simple-Bots-Skitter/

Author:randofo    Randy Sarafan loves you!I am the Technology Editor here at Instructables. I am also the author of the books 'Simple Bots,' and '62 Projects to Make with a Dead Computer'.Subscribing to me = fun and excitement!

Intro:  Simple Bots: Skitter

Skitter Bot came into this world as result of a chain reaction of exploded of cosmic energy. By current estimates, this chain reaction took roughly 13.7 billion years tocomplete. When put into such context, it becomes quite clear just how long it takes for near-perfect walking scrub brush bot to come into being.

Do not be fooled. Scrub Bot was not the simple sort of bot that materializes overnight when I zip tie a bunch of scrub brushes together. No! There was an ineffablecosmic plan that led up to this bot's creation, going back well beyond the day when man, through genetic mutation, first evolved the ability to manufacture zip ties andscrub brushes. This bot is a bona fide cosmic child.

Get the Simple Bots eBook for more projects!

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Step 1: Go get stuffYou will need:

(x1) continuous rotation servo modified for direct drive**(x1) 3 x AA battery holder(x1) DPDT toggle switch(x4) scrub brushes(x1) small plastic container(x1) ballpoint pen(x1) 1-1/2" x 3/8" corner brace(x1) assorted zip ties

**Modify your servos for direct drive here

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Step 2: DrillDrill four 1/8" holes into each corner of the servo horn.

Step 3: AttachPass two zip ties down through the front two holes in the servo horn.

Next, pass them through the two adjacent center-most holes in the corner bracket.

Then, pass the zip ties through the hanging holes in the brush handle.

Finally, zip tie everything firmly together.

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Step 4: DrillUse the two free holes in the L-brackets as guides for drilling downward through each of the brushes.

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Step 5: SecureSecurely zip tie the brushes to the L-bracket.

For extra support, zip tie the brush handle mounting ring to the unused back holes of the servo horn.

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Step 6: CutCenter the backside of your servo near one of the short edges of the plastic container lid.

Trace the outline of the back of the servo and then cut out the shape with a razor blade.

Finally, pass the motor wires through the hole and slide the plastic container lid down over the servo.

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Step 7: Drill and fastenDrill 1/8" holes in the plastic container lid that line up with the mounting holes of the servo.

Zip tie the motor firmly in place.

Trim away the excess zip tie ends if you haven't done so already.

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Step 8: Center and drillCenter the battery holder over the underside of the plastic container and use the holder's mounting holes as drill guides.

Drill two 1/8" holes.

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Step 9: AttachPlace the battery holder inside the plastic container and fasten the two items together using nuts and bolts.

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Step 10: Measure and drillTake the two remaining scrubbers and measure 1" in from the edge and make a mark.

Drill a 1/8" hole down through the handle where you made this mark.

Step 11: Attach the legsTurn the plastic container upside down. Mark, drill, and zip tie the two remaining scrub brushes to the front of the plastic container such that they meet at a 90 degreeangle, and point evenly downwards towards the direction of the plastic container opening.

In other words, make two even-length front legs for your bot.

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Step 12: SwitchDrill a 1/4" centered hole near the other short edge of the plastic container lid.

Pass the DPDT switch through so that the shaft is pointing at the scrubber legs and then fasten it on with a nut.

Step 13: Wire it upWire together the opposite corners of the DPDT switch.

Solder the red battery wire to one of the center DPDT switch pins and the black battery wire to the other.

Turn the switch so that there are only two pins facing you (as opposed to three). Solder the black motor wire to the DPDT pin closest to you on the right. Solder the redmotor wire to the other pin on the left.

Note: If, when you power it up, the switch isn't making the motor move back and forth, remove the batteries. Next, detach the motor wires and reverse the switch pinsthey were connected to.

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Step 14: ExtenderTake apart a pen and cut about 1-1/2" from the end of the pen tube.

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Step 15: GlueMake certain the switch is positioned between the two scrubbers.

Fill the pen cap with hot glue and quickly slide it onto the switch's shaft. Be careful not to get any hot glue inside the switch. This could prevent it from working.

Hold the tube in place until it begins to set.

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Step 16: PowerPut some batteries into the holder and the legs will start to go.

Step 17: Case closedQuickly close the plastic container and let the bot go free.

Get the Simple Bots eBook for more projects!

Download it in Kindle, iPad, and PDF format.

Related Instructables

Simple Bots:Wobbler byrandofo

DuneBot 1.2 -An EasyBotSlideshow(Photos) by WinGuy

GrubBot 1.2 -An EasyBotSlideshow(Photos) by WinGuy

Wireless, CheapBristle Bot inUnder Twominutes byObiwan5090

Simple Bots:Scrub by randofo

Simple BotSwitches,Sensors, andModules byrandofo

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Comments

3 comments Add Comment

 M.C. Langer says:  Sep 10, 2012. 6:48 PM  REPLYAwesome! I just made my version of your Walker (photos soon). This will be the next Randofo's Simplebot I will to make! :-) Thanks gor those amazingprojects!

 mikeasaurus says:  Sep 10, 2012. 5:02 PM  REPLYYou've got some mighty clean floors with a few of these around

(Also, the broom in the video looks sad not being able to participate)

 iceng says:  Sep 10, 2012. 4:15 PM  REPLYExceedingly Excellent ....  times four.

These will become known as your wondrous off the shelf  Botepoch instructable years :-)

Your very creative tutelage directs my hands to add some intricateservo action to enhance the flavor of my next ible.

Now sorry that I didn't add anything to the recentDisappearing Bike Baskets ible

I relish the future fun involved in making something work..Thank you

A