Concept 2 PM5 Device Vice

This is a tablet mount for a PM5. It may also fit previous versions. The jaw capacity is about 3.5"-5.25" or 88mm-133mm. It can be trimmed to clamp on smaller devices. The hinge does have teeth to index the angle of the dangle and is spring loaded for tool less adjustment. I used random springs and bolts to assemble. A strong rubber band may also work fine for the clamping force.