[TriggsJr]

I see our Rage telescope is making Igus very popular.

I designed the arm to extent by rotating a sprocket inside the openings of the chain. I really sick and tired of making cable and pulley operated telescopes. Their soooo complicated and the part count is huge.
All I have are 2 extending telescope tubes that free float. the chain is attached to the end segment. Really slick setup. The best benifit was the ability to run the 4 air lines right up the chain.

At first I used the closed chain for strength but repair was a pain.
So I started replacing the broken links with one side opening links.
the closed side I drove with the sprocket. Our two machines have been through 6 competitions and I'm never going back to cable/pulley setup again.
I can post some pictures of it apart.

You can't beat cable chain for wire management.
The size i used was a 15i.038.038