Telescoping boom for crane

[Doug]

Has anyone used the telescoping tubing from Eagle Mouldings (link below) as a telescoping boom on a crane? How did it work? Any problems? Does it have to me manually extended or can it be extended with a motor or hydraulics?

I'd appreciate any feedback.
Thanks!
Doug

http://eaglemouldingsinc.com/TubingSquareRectangularRound.aspx

[rcguyfarms]

first time I ever hear of this company, I will have to check them out for a future project. thanks for the link.

[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

[doodlebug]

Hey Doug, did I send to link for Kerst's Leibher crane? http://rctruckandconstruction.com/showthread.php?t=642&highlight=CRANE
That thread may help answer some question's.
Cheer's, Neil.

[Doug]

Thanks Customclod and Neil. I'll check out the info. Appreciate it.
Thanks,
Doug

[Doug]

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]

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.com/showthread.php?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

[Doug]

Thanks Mac Kid and Custom Clod. Great info