Cool 3 color CNC wall plotter

Posted on April 14, 2022 by robertwilkie

Reminds me of the Maslow CNC in its build. Most of the parts are 3D printed and it has an internal gear to switch markers. I like how the author uses vasoline for “grease”. Parts here https://www.thingiverse.com/thing:4192091

Whiteboard Plotter Rocks Three Colors and an Eraser
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Nice center punch build

Posted on April 13, 2022 by robertwilkie

But its alot of work, for something you can get pretty cheap at Harbor Freight. Me…I think I would buy it myself. Thought the homemade one does seem to work better.

https://www.homemadetools.net/forum/spring-center-punch-video-90441#post200601

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A simple small (and cheap) vaccum chamber

Posted on April 8, 2022 by robertwilkie

A really small one, made with a glass jar, and a cheap battery operated food container pump. Figure 5-6 dollars in materials. Good for small resin builds.

Degassing Epoxy Resin On The (Very) Cheap
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OK crazy boat motor build

Posted on April 7, 2022 by robertwilkie

The author uses 8 cheap DC brushed motors, and an 8 way gearbox to drive a propeller for a boat. Cool build but I don’t know how long that setup will last.

Eight Motors Speed This Boat Along
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Making your own lie detector

Posted on April 6, 2022 by robertwilkie

Now you have to attach staps to the person, but its an interesting build using an arduino to tell when someon is not telling the truth.

Arduino Polygraph Shows How It’s Done
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3D print a frame for Pingpong ball disffusers

Posted on April 5, 2022 by robertwilkie

Basically you use the ping pongs as an LED diffuser. Neat idea.

Modular Design Enables Huge Ping-Pong Ball LED Displays
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Turn a RPi into a Dogecoin miner

Posted on April 4, 2022 by robertwilkie

Not so sure how much you would get from this, or if you get even close to enough to cover the electric costs. Anyways could be a good way to into people into mining.

https://www.instructables.com/How-to-Make-a-Raspberry-Pi-Crypto-Miner-Dogecoin/

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Nice short write-up on using dowels for joints

Posted on April 1, 2022 by robertwilkie

The author does a nice job on how you can a tool called the dowelmax to use dowels as corner joints. But…I have seen several homemade tools that do the same job. Still nice article to read up on.

DOWEL JOINERY: Why It’s Easy to Love This Great Woodworking Technique
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Using a RPi as a security camera

Posted on March 31, 2022 by robertwilkie

Interesting build. Myself, I am still fond of Wyze cameras, thought some changes have me a little concerned.

https://www.makeuseof.com/create-a-multi-camera-cctv-system-with-raspberry-pi-and-motioneyeos/

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3D printing forms for making custom paper shapes

Posted on March 31, 2022 by robertwilkie

Basically the author takes old paper, converts it back to pulp, and then puts it into a form he 3D printed out to shape the paper. Nice idea to make custom containers.

3D Printing Paper — Sort Of
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