Reflow Toaster Oven Insulation Notes

click to see bigger images

I decided to make an SMD reflow oven from a toaster oven I found abandoned in my garage. There are many excellent build guides already on the web, so I’m not going to replicate them here, I’ll include links below. I did see some improvements I thought I could […]

SonarI2C – multiple HC-SR04 sensors on Arduino I2C

HC-SR04 octopus

HC-SR04 octopus on I2C plus one pin

I recently had my first encounter with ultrasonic distance sensors – specifically the Parallax Ping))) – while helping the Cresta Blanca Girl Scouts robotics club prep for the local RoboGames Fire Fighting challenge. This got me all interested in doing robot things again so I’ve dusted off […]

Making a Custom Planishing Dolly

Completed Planishing Dolly

I needed a dolly with the correct profile to planish out the dents in a crumpled 1930s Ariel motorcycle front mudguard. As there is no such thing obtainable, I made my own.

I had one point on this old moonscape guard with a reasonably intact original profile. Using a piece of […]

Restoring a Vintage Valanced Mudguard – Part Two

Right rear patch tacked

It quickly became clear that it would not be possible to smooth out all the dents until the metal had an approximately consistent thickness. Some of the previous repairs consisted of overlay patches and lumpy welding. On the other hand, making accurate patches for a lumpy and distorted part was […]

Splitting Jumper Wires for Arduino

A while ago I stocked up on jumper wires from Sparkfun and recently found while connecting an Arduino clone to a Raspberry Pi that the single straight header on both ends was not what was needed. Unlike the male breakaway headers, these female JST RE wire headers do not split up.

To solve this you […]