Category Archives: Arduino

POT to PWM controller

Posted on September 23, 2021 by robertwilkie

Using an ATiny no less, bascially you turn the POT, and a PWM comes out to control the motor speed. Good for DC based motors. It also has a nice small footprint. https://www.instructables.com/Poti-PWM-Control/

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Another interesting Drawbot

Posted on September 9, 2021 by robertwilkie

This one does not use gravity, its an interesting build with most of the parts are 3D printed out. Not so sure if I would put this one on the list (take too long to print everything out). I do … Continue reading →

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Different take on a CNC plotter

Posted on August 31, 2021 by robertwilkie

Build to look like an odd robot. The good news is the base pieces are PVC pipe and are cheap and easy to come by. Downside, most of the other material used is not. Also wonder if there is a … Continue reading →

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Neat hot wire CNC

Posted on August 27, 2021 by robertwilkie

Its a neat build that looks like an Ender3 base. I like how the author has “clamps” built into the base to hold the foam board in. https://www.instructables.com/Spatial-Hot-Wire-Cutting-for-Complex-Surfaces/

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A pretty serious nerf ball turret

Posted on August 25, 2021 by robertwilkie

The motors the author uses this are ones you find in higher end RC cars. Its a clever build and seems to shoot an move pretty fast. https://www.instructables.com/Arduino-NERF-Ball-Wireless-FPV-Sentry-Turret/

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3D printed mini cooler

Posted on August 22, 2021 by robertwilkie

basically the author takes a 3D printed jet engine like design and puts it on a swamp cooler. Seems a bit of an expensive build overall. https://www.instructables.com/3D-Printed-Mini-Air-Kooler-the-OverEngineered-Edit/

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Using planetary gears for more torque

Posted on August 18, 2021 by robertwilkie

The video does a good job explaining why and how you go about doing this. Its an intersting one to watch and helps explain why you would want to do this. https://www.hackster.io/news/this-split-ring-compound-planetary-gear-system-can-achieve-super-high-reductions-4f2c4e103a22

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Nice 3D moving Digital Clock

Posted on August 17, 2021 by robertwilkie

Only downside is each “digit” needs 7 servos, so for 4 digits, that 28 servos. So this could turn into a bit of an expensive build. I think the author should have added in LEDs to the build as well. … Continue reading →

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Arduino Telegraph

Posted on August 13, 2021 by robertwilkie

Interesting build with old CDROM parts. The author is a little light on how to make one yourself, but thankfully has enough pictures to get the point across. https://www.instructables.com/Arduino-Powered-Writing-Telegraph/

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Touchpad to gcode

Posted on August 12, 2021 by robertwilkie

Interesting build, the author uses a rather big, and clear, touchpad to draw something that the arduino will convert to gcode, which then can be sent to a CNC. This could be a good kid project (they draw something, then … Continue reading →

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