Hi all,
A couple of us want to build an actuator for a large (3m) satellite dish. It only needs to wind it up and down in elevation, and will be fairly well balanced. We intend to make a screwjack arm to push it up, but are unsure what will be the best thread type to use. I have seen elsewhere a thread which I can only describe as square - it is about 0.5inch pitch, and the thread looks totally square in cross-section, I guess for good load-bearing capabilities.
My questions are:
What is this thread called (if you can identify it from that poor description!)
Is it the best profile to use, or should I be looking at something else?
Where are some good places to get 1.5m from, along with the captive nuts etc?
Thanks
Gary