Category Archives: CNC/3D-printing

Cool magnetic gear box

Posted on January 12, 2023 by robertwilkie

Clever build for a gear box with magnets. Could be useful for underwater robots for example. https://www.instructables.com/Magnetic-Gear-Box/

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Build a concrete CNC

Posted on January 11, 2023 by robertwilkie

Nice build, price is not too bad at first (under a grand) UNTIL you add in the concrete mixer and pusher…thats 4500$ alone…. https://medium.com/@Nik_chen/how-to-assemble-your-own-concrete-3d-printer-4e6da490b6e6

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Two Servo drawbot

Posted on December 14, 2022 by robertwilkie

This is a bit of a ghetto build, and instead of using steppers, the author uses servos to drive the x/y. https://www.instructables.com/Two-Servo-and-Drawer-Rail-Pen-Plotter/

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Nice plotter build

Posted on December 8, 2022 by robertwilkie

Pretty fast plotter too. https://hackaday.com/2022/06/19/this-arduino-pen-plotter-is-built-for-speed/

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converting an old plotter into a camera slide

Posted on November 15, 2022 by robertwilkie

The author took and old plotter and make a motorized camera slide out of it. Nice build, only issue I can see is its a “short” slide. https://hackaday.com/2022/04/07/turning-old-plotter-parts-into-a-smooth-camera-slider/

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A drawbot that can use a multi color pen

Posted on November 1, 2022 by robertwilkie

Interesting build for a drawbot, it uses a multicolored pen to switch colors, instead of changing the “pen” for each color. https://www.instructables.com/Multicolor-DrawBot/

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Interesting build for a automated pet feeder

Posted on October 12, 2022 by robertwilkie

Nice build overall, just it would need a top to keep the pet from getting into the dispenser. https://www.instructables.com/Simple-and-Easy-Automatic-Pet-Feeder-With-Arduino/

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Nice Halloween bat build

Posted on October 11, 2022 by robertwilkie

Cheap to make too. The author uses soda cans and old flag wire to make them. Seems a bit time consuming to cut the bat itself out..I wonder if I could CNC the cans and do a bunch at once….hum… … Continue reading →

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This just shows why home loom robots don’t exist yet

Posted on October 4, 2022 by robertwilkie

This is an OMG this is a complicated build and very picky. Shows why folks don’t have CNC like looms for clothing yet (well on the cheap hobby scale). https://hackaday.com/2022/06/07/3d-printed-power-loom-shows-how-complex-weaving-really-is/

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Well this is one way to make money with a 3d printer

Posted on October 3, 2022 by robertwilkie

I first heard about someone in Texas doing this, but apparently someone in NY (Utica) did it too and walked away with 21K in giftcards (500 dollars per gun). Most of the prints where just receivers or parts, so surpised … Continue reading →

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