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In lugnet.trains, Ross Crawford writes:
> In lugnet.trains, Chuck Kabesh writes:
> > I've completed a rebuild of my site and have posted a crane. I wanted a rail
> > crane and started out by looking at set# 8460. The result is an 8-wide with
> > manual outriggers, a pneumatic assembly to raise and lower the boom, and
> > powered crane assembly rotation, cable control, and boom extension. A
> > micro-motor in the base powers the rotation, while 2 12v motors mounted in the
> > counter weight handle the cable and extension.
> >
> > The motors are contolled by tethering them to a Mindstorms brick and using the
> > remote control. The pneumatics are run from a tank, pump, limit switch and
> > battery box mounted on a drop centre car.
> >
> > Obviously not a prototype of anything but fun to play with. The major drawback
> > is the pneumatics. Simply put they are not up to fine control or raising the
> > boom while it is extended and bearing a load on the hook... but, as I said, it
> > plays well.
> >
> > They can be seen at http://www3.telus.net/chuck
>
> Nice model, Chuck! That 8460 certainly has a lot of inspiration to answer for!!
>
> Have you thought about using the technique I used in my all terrain crane for
> elevating the boom? It provides much finer control than pneumatics, and is
> easily motorised! It probably also slightly less real-estate. See it at
> http://www.lugnet.com/~469/projects/allterraincrane
>
> I've added .technic to the list as well - they'll probably like it over there
> too 8?)
>
> ROSCO
Thanks for that.
I took a look at your solution, then at John Barnes' solution. If I decide to
keep the model, I'll most likely try one or the other. That, by the way, is one
fine, compact, extention boom you came up with.
In the meantime, back to looking for a pneumatic application for train MOCs...
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Message is in Reply To:
 | | Re: Train crane MOC
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| (...) Have you thought about using the technique I used in my all terrain crane for elevating the boom? It provides much finer control than pneumatics, and is easily motorised! It probably also slightly less real-estate. See it at (URL) added (...) (22 years ago, 16-Feb-03, to lugnet.trains, lugnet.technic)
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