One engineer's project-log, thoughts and ideas.

Entries for September, 2011

Make: Aluminum foundry

Always seeking cheaper ways to source materials to cut with the CNC, I came across some tutorials on building a charcoal fired aluminum foundry. Some external resources if you want to try your hand at it! http://www.backyardmetalcasting.com/bucketfurnace1.html http://www.instructables.com/id/Build-a-foundry-and-sand-cast-aluminum/ http://www.instructables.com/id/My-Second-Aluminium-Foundry/ http://www.instructables.com/id/Aluminum-Foundry/ Be extra careful if you decide to embark on this project! Here are some photo’s [...]

Make: The big swing

This summer (2011), we built this giant swing in our backyard — it’s over 20 feet tall and swings out over the hill behind the workshop. Total cost was under $40, but we had the pressure treated beam and some of the hardware lying around, we just had to buy the cable and some extra [...]

Work in Progress – Building a brushless axial stepper motor

Here we’re cutting the stator plates that will hold our coils, and showing off the coil winding jig on the variable speed drill press.

Sketchbook: Mechanical Systems

Sketchbook: Abstract

Sketchbook: Polyscape

Sketchbook: Skew

Sketchbook: Square Bot