David Knaack

Crystals

Recently I’ve been playing around with growing crystals. It was always a fun and easy thing to do when I was a kid, so I thought I’d try some that are more interesting than the usual salt, sugar, alum, epsom, etc.This is recrystalized acetylsalicylic a…

Macro Images of a Chip

A friend from the Omaha Maker Group gave me an interesting chip a while back. Apparently it is some kind of optically sensitive chip, it has a clear case.I thought it would be interesting to take some macro photos of it and see if I could capture some …

Web-attached pan tilt camera

With some help from Brandon and Ben I got the mechanics for the pan tilt camera rig going. The servos attach to an Arduino which is connected to a computer running a Windows web service that provides access to the camera.I had an issue with the movemen…

Tippy forge

Here are a couple of videos of the tippy forge I’ve been working on for the Omaha maker Group. At this point it just needs the frame to hold it and a handle to make it easy to tip. There is a little leakage from the input that we need to get sealed up,…

Motor demonstration rig

One of the interesting projects from the Omaha Maker Group meeting on Jan 10. Ben put together this little motor demonstration rig with a couple of magnets, a 3D printed frame, and the armature from a commercial motor. Here he is just holding a couple …

Social Media Auto Publish Powered By : XYZScripts.com