Done printing, not done sanding, probably not the best model to use to redial in my printer after rebuilding it. Anyways, is the valve arm too long? The valve goes all the way in, but the arm is too long and doesn't line up with the cam.
I began printing this, but I beleive the cylider is wrong, it doesn't match your pictures, and doesn't fit the base.
Paracord Belt With Carabiner Buckle
Arduino Nano based Microbot
A Preamplifier for Smartphone Oscilloscopes