So tonight after the kwartzlab board meeting (welcome Paul and Dan to the group, BTW), I got a bit more methodical about optimizing different solenoid parameters. All revealed in the video.
Click through for a few stills…
But before you do, I’ll plug my talk coming up next Wed (Nov 25) at the Waterloo Regional Children’s Museum for the Ignite:Waterloo event. My 5-min talk is “Meta-Making: building a hacker space in 17 easy steps”. Come check it out and chat with me at the bar afterward. I’m always happy to meet you lurkers who are reading but leaving me running open loop
Rigged this up in a cardboard box. The test solenoid is taped to some foamcore acting as a standoff. The idea is to load the solenoid plunger, adjust various parameters, and compare the travel of the plunger.
Used #10-32 machine screws as a load + some hex nuts
Paper ruler at the back makes for convenient travel measurement. Maybe a bit of parallax error, but good enough.
There is a separate chunk of straw stuck in the bottom of the barrel and fastened with this pin. I can adjust the starting position of the plunger just by pulling the pin and moving this lower straw.
Next up, I’ll run some more thorough tests. Tonight was just ad hoc for fun and to see if the test rig worked.