Category Archives: epoxy

How To Build A Mill With Epoxy

The typical machine tool you’ll find in a workshop has a base and frame made of cast iron or steel. These materials are chosen for their strength, robustness and their weight, which helps damp vibrations. However, it’s not the only way to make a machine tool. [John McNamara] has been …read more

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Posted in cnc, cnc hacks, CNC mill, epoxy, Machine tool, mill | Leave a comment

A Classy USB Knob For The Discerning Computerist

The keyboard and mouse are great, we’re big fans. But for some tasks, such as seeking around in audio and video files, a rotary encoder is a more intuitive way to get the job done. [VincentMakes] liked the idea of having a knob he could turn to adjust his system …read more

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Posted in diffuser, E11, epoxy, input device, neopixel ring, peripherals hacks, rotary encoder, trinket m0, usb | Leave a comment

Epoxy Too Thin? Use Wood Flour as a Thixotropic Filler

The world of glues is wide and varied, and it pays to use the right glue for the job. When [Eric] needed to stick a wide and flat 3D printed mount onto the back of a PCB that had been weatherproofed with an uneven epoxy coating, he needed a gap-filling adhesive that would bond to both surfaces. It seemed like a job for the hot glue gun, but the surface was a bit larger than [Eric] was comfortable using with hot glue for. The larger the surface to be glued, the harder it is to do the whole thing before …read more

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Posted in 3d printed, chemistry hacks, epoxy, filler, glue, led, led hacks, snowflake, thixotropic, two part | Leave a comment

Epoxy Fix For A Combusted PCB

When the Magic Smoke is released, chances are pretty good that you’ve got some component-level diagnosis to do. It’s usually not that hard to find the faulty part, charred and crusty as it likely appears. In that case, some snips, a new non-crusty part, and a little solder are usually enough to get you back in business.

But what if the smoke came not from a component but from the PCB itself? [Happymacer] chanced upon this sorry situation in a power supply for an electric gate opener. Basking in the Australian sunshine for a few years, the opener started acting …read more

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Posted in copper, epoxy, fiberglass, fr4, JB Weld, magic smoke, pcb, Printed Circuit Board, repair hacks, resin | Leave a comment

A Slightly Scientific Examination Of Epoxies

Two-part epoxy is one of those must-have items in your toolbox, albeit kept in a ziploc bag to keep all that goo off the rest of your tools. It’s a glue with a million uses, but which brand is best? Should you keep some cheap five-minute epoxy around, or should you splurge for the fancy, long-setting JB Weld. It’s not a perfect analysis, but at least [Project Farm] has done the experiment. This is a test of which two-part epoxy you can find at your local home supply store is strongest.

The epoxies tested include Gorilla epoxy, Devcon Plastic Steel, …read more

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Posted in epoxy, glue, hardware, JB Weld | Leave a comment