I have been wanting to create a version of the 8258 crane truck for a while now and have finally gotten around to doing so. What I wanted to build would be something completely new but would share the appearance, to an extent, with the original 8258. When I first got the 8258 I made this picture..
It was a very quick drawing but what I basically wanted was to have a completely remote control offroad crane that featured adjustable suspension and various other things. I have finally gotten around to building my creation and have used a heavily modded version of my Modular 8 Wheeler, which can be viewed on my Brickshelf here or in its separate thread here, as a base for my creation. EDIT: The original folder has been replaced by the finished one which can be found here.
Essentially, I have three XL motors for drive, the first two power the first two pairs of wheels, and the third powers the back two pairs. Then I have one M Motor in the front that powers the steering for all 8 wheels. I am also currently using 1 M Motor to power the adjustable suspension but that will likely change.
What I wish to ask of you my fellow builders is what I should about the following. I have four PF remotes and their corresponding receivers and, once I remove the M Motor from the suspension, I have a5 M Motors and 1 XL motor left for functions. I also have 3 XL and 1 M but those are for the drive/ steering and will be controlled with one remote. I am left with 6 motors and three remotes to control them which fits perfectly if I wished to have two functions per remote, but I do not! I want to incorporate some remote controlled gearbox so that I can have more functions! I think I will use something similar to the design CHOOPS created on his Brickshelf account located here
CHOOPS' design uses one M Motor to switch between four functions and a second motor to power each one. I am planning on using the same thing in the base of the truck and having the second motor be an XL motor. This will give the actual truck four functions + drive & steering and then I will have 4 M Motors left to use in the actual crane.
There is an alternative though which would be to use something like the gearbox featured in the 8043 Excavator which uses 4 M Motors to control 6 functions. I could put this in the base of truck and put the extra XL and M in the actual crane. Then I could have the first three functions power the suspension, stabilizers, and winch/ lift for flatbed and then have the second three functions be the turning of the turntable and two more through the turntable into the crane. I hope I am not being to confusing..
The third option is a combination of the first two options and would put CHOOPS' design into place in the crane portion and have the 8043 gearbox in the truck. This would give me a total of 10 functions (AWESOME!!) + drive & steering.
The problem with incorporating the 8043 gearbox is its size so CHOOPS' design may be the solution I am looking for..
In the end I am looking for some of the following functions: Moving stabilizers (Like the ones that came with the original 8258), Adjustable suspension, Winch, lifting flatbed (Like one of those in a tow truck.. I also figured that this would make a good use of all that space in the back of the truck), and then rotating turntable, and several unplanned functions in the crane portion..
If you have survived reading this I would greatly appreciate any suggestions or feedback.. Thanks
Edited by Crtlego, 11 July 2012 - 05:30 PM.