Projects Paul McClay likes and follows

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Make Beautiful Big Labels Practically for Free

Masking Tape Plotter

Visualizing the mechanical properties of 3D-printing filaments (BASF Ultrafuse data)

Mechanical tests of 3D-printing filaments

emmanuel-de-margerie Emmanuel de Margerie

2021 Hackaday Prize

A new way to generate wind energy using only polyester film based flexible circuits

Flexible circuit wind generator

stuart-mackenzie Stuart MacKenzie

Simple, inexpensive bird feeder that dispenses peanuts in exchange for dropping stuff in a hole. A vending machine for clever birds.

Vending Machine for Birds

stephen-chasey Stephen Chasey

An active scope probe with high-ish bandwidth and very low input capacitance

DIY 1.3 GHz FET Probe

Sticking 2 magnets and one piezo stack, you can make a nanoresolution piezo motor in 10 seconds

Hacking any linear slide/bearing into piezo motor

edwin-hwu Edwin Hwu

This is a homemade 7-bit SAR ADC using discrete components for principle study.

Homemade Successive Approximation Register ADC

mitsuru-yamada Mitsuru Yamada

Think of the smallest 7-segment display you've seen. OK. Think smaller. Smaller. Smaller....

The NanoRaptor NanoSegment

sam-ettinger Sam Ettinger

a wee demo to explore a funky phenomenon: FR-4 PCB cores fluorescing under blacklight

UV Fluorescent PCB - 7 Segment Display

sam-ettinger Sam Ettinger

I will present my early homemade computers around 1980 that was the starting point for the computer project I have already introduced.

Prehistory of my homemade PERSEUS computers

mitsuru-yamada Mitsuru Yamada

A small tribute to the 80's game Elite. An Arduino+LCD shows the iconic tumbling Cobra Mk 3, plus some extras (other ships, clock mode).

ElitePetite

mark-wilson Mark Wilson

Musical instrument without batteries!, created with the motor of a PC CD player and a piano generated with the incredible 555

Acordeonador

LEDs also act as tiny capacitors and this can be a source of them lighting up when you don't want them to

Deghosting multiplexed LEDs

mihaicuciuc mihai.cuciuc

Fixing up vintage sewing machines for hobby use.

Vintage sewing machines

joseph-eoff Joseph Eoff

I've assembled many dense(-ish) PCBs with small components (down to 0201) during the last three years. A summary.

Assembling dense SMD PCBs - lessons learned

How to turn waste plastic parts into granules of specified parameters.

Turn waste plastic into raw material

norbert-heinz Norbert Heinz

Accepting the challenge made in a previous Hackaday post.

555 ultrasonic levitation

Up to now, most manufacturers of laser cutters of the mid to lower price range make use of grbl, but totally ignore the GPL v3 license!

Don't ignore Open Source licenses!

norbert-heinz Norbert Heinz

Uses brush current pulses to measure speed

Brushed motor speed control with stable RPM

USB to Commodore Datasette and Floppy Disk Drive Adapter based on ATtiny814

C64 DumpMaster64

stefan-wagner Stefan Wagner

A quick tour where I fix an old tube-based oscilloscope, the OS12 from Advance Electronics.

Fixing the OS12 scope

el-juanan El Juanan