Mark Rehorst's Tech Topics

Progress on the smaller sand table, Arrakis, was recently brought to a standstill. There was an incident... The mechanism was working fine s...

Update 4/30/22 After a year of riding in all kinds of weather, the bottom bracket in my bike started clunking in two spots with each turn of...

I was recently working on a smaller version of the sand table, called Arrakis, and noticed that when the magnet carriage was moving in X onl...