Rainbowduino!

Rainbowduino 3.0b driver from Seeeeduino with 8×8 LED Matrix The b is an ATmega328 so make sure you select the right board. Selecting the wrong board (ATmega168 for example) will cause a failure to upload. If you aren’t sure if avrdude is actually sending packets, go to Arduino: Preferences and check Verbose error reporting. Then…

Setting up OctoPi to talk to Printrbot Simple Metal via RasPi

Adam and Jamie’s Tested page is a wealth of resources, not the least of which is this OctoPi tutorial.  But for me there was one missing instruction. Here are their instructions, with my diff in bold: open the /etc/network/interfaces file with nano using the following command “sudo nano /etc/network/interfaces” Uncomment the line in wlan0 that…

LED beads

I saw this awesome Instructable about DIY sewable smd LEDs by user Carleyy.  I use smd LEDs a lot in paper circuits, taped down or carefully soldered. And I’ve had the pleasure of sewing Lilypad LED sequins in soft circuits. Now, the Lilypad ones are very reasonably priced, about a dollar each. But if you want…

Running Cura on Ubuntu

A month ago, the museum’s beloved Printrbot Simple Metal suffered a fatal crash. By which I mean it literally crashed on the concrete floor. Being the caring and nurturing person that I am, I ripped open its body and corrected it with my doctoring mallet. So after the repairs and replacement of the shattered coupler…