Telescoping boom for crane

[Doug]

Originally Posted by CustomClod

I bought telescoping tube from mcmaster-carr. had to build my own screw drive to move it but it fits great. Am using it for my tow truck build.
Scott

Customclod...can you give me some details of how you built the screw drive to move it? Do you have pics? How many sections of boom does it have?

Any information would be appreciated - just trying to get an idea in my mind of how to make it work.

Thanks!
Doug