Category Archives: robots

Using 2 relays to control a motor

A D/C Motor that is. Interesting build especially for higher power DC motors. https://www.instructables.com/id/DC-Motor-Controller-With-Two-Relay/

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I want one of these sorting machines

Its fun to watch the video. Basically a light from the bottom lights up the parts for a camera to take a pic of and figure out what is what in shapes, then it picks them up and puts each … Continue reading

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Print your own Linear servo actuator

I like this build/print.  Basically you can 3D print out the actuator to fit on standard hobby servos. Save a Few Steps on Your Next Build with These Easy Linear Actuators

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3D print and build your own spider bot

Nice build, involves ALOT of servo motors thought. https://www.instructables.com/id/ESP8266-WIFI-AP-Controlled-Quadruped-Robot/

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Make a water bottle connector

I like this build, you can use it to make custom floaties, and quick robot builds (for water). https://www.instructables.com/id/Water-Bottle-Connector-Recycled-Building-System/

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Making a cheap foam R/C boat

Nice build.  If you want to make a big R/C boat, this is the way to go. https://www.instructables.com/id/Foam-RC-Airboat-Build-DIY/

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Make your own wheels for a robot, or R/C car

Interesting build…me…if I was in a pinch I think this would be a great idea.  But… You can get wheels pretty cheap on ebay.  Or cheap casters at Harbor Fieght and then take them apart. https://www.instructables.com/id/Home-made-Robot-Wheel/

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A nice etch a sketch build

I like this build, the author with 2 steppers, an RPi, build this to draw pictures on an etch-a-sketch, could be a good way to into for kids into CNC or robotics. Bot Makes Etch A Sketch Art In One … Continue reading

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Cool CNC robot for sand (or spray gun)

Nice looking build for a robot (CNC based to write stuff out in sand, or adapted to use spray cans. Spraychalk Anoints your Sidewalks with Precision Sandprints main site https://openbuilds.com/builds/cnc-sand-and-spraycalk-drawmaschine.4792/

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Make your own sand printing robot

Nice build.  Most of it was 3D printed and I like the use of the servo and a “stick” to write in sand.  Downside, it seems to move pretty slow. https://gizmodo.com/this-automated-sand-printer-is-ready-to-flood-your-inst-1827313521

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