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

[mack kid]

Dont know if this helps. but a modler in germany put a motor and screw drive on each end plate of each segmant of boom.
let me know if you need more on this. i can try and find the build.

[mack kid]

Try this site click on Kranes and enjoy

http://www.rc-baustelle.de/index.php

[CustomClod]

Originally Posted by Doug

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

http://www.rctruckandconstruction.co...?t=3348&page=2
From post 22 down. I'll take some more pics tomorrow. Mine will have 2 sections that move so 3 all together. When its all built i'll get u some more pics.
Scott