I am looking for a detachable battery pack case that will easily clip or snap onto an OEM holder that is mounted to the bottom of a kinetic art piece. Something like a battery pack attaching to a portable drill would be perfect. But to do so, I need to find the mating hardware to attach to the...
Does anyone know where I can buy stock constant force springs with 1 to 4 lb-in of torque and about 120 inches in length? I am looking for companies besides Stock Drive Products and McMaster-Carr. I only need about 5-10 springs, so it is too expensive to have a company like Vulcan Spring make...
Does anyone know where I can find a relatively inexpensive ulta-low friction ball bearing with 5/16" bore. My application demands really low friction under 10 rpm, room temperature environment. I have tried a skateboard bearing called Bones, Swiss Ceramic @ $15.00 each. The bearing is ok but...
Does anyone know where I can find a relatively inexpensive ulta-low friction ball bearing with 5/16" bore. My application demands really low friction under 10 rpm, room temperature environment. i have tried a skateboard bearing called Bones, Swiss Ceramic @ $15.00 each. The bearing is ok but...
I am using a 0.6 in-lb constant force spring in a spring motor assembly. I have heard that constant force springs should always have at least 1-2 turns on both the storage and output spools. Is that true for small springs? If I were to attach the ends of the spring with a single screw to the...
