Hi all,
Has anyone had any experience with the Lego pneumatic parts especially the pneumatic pressure tank?
Regards,
TCIII
Yeah right…I wish! 
I probably spent a whole year of my life just trying to find out where to buy them. Good luck though!
wowy7,
There is the a store on eBay that has quite a selection of the Lego pneumatic components and electro/mechanical parts:
stores.ebay.com/iLegos_W0QQssPageNameZstrkQ3amefsxQ3asstQQtZkm
zoomkat,
Thanks for the instructables link. I also found instructions for a DIY air tank made out of a propane bottle that could be pressurized to 100psi.
The Lego pneumatic system seems to be able to be pressurized to some where between 30 and 60 psi. I ran across a study of the capabilites of the Lego pneumatic compressor with and without the pneumatic tank and found it to be very informative.
The reason for my post is to determine the viability of using the Lego pneumatic system to manipulate a robotic arm or power a small short range air cannon.
Regards,
TCIII
Why don’t they sell them on Lego’s website? are they not made by lego?
I wish I still had my lego mindstorms 2.0. It was fun until I decided I wanted to use pneumatics, and couldn’t find them anywhere.
wowy7,
I suspect that the pnematics were not big sellers and maybe had problems because people tried to use them in ways they were not designed for.
Regards,
TCIII
Plastic carbonated drink bottles can be pressurized to ~150 psi and are lighter and probably safer than metal containers. They are commonly used to make water rockets (below):
en.wikipedia.org/wiki/Water_rocket
ast.leeds.ac.uk/~knapp/rockets/
If you end up going the DIY route, Robart Manufacturing makes some interesting miniature pneumatic components, including small air tanks.
robart.com/air_systems/airkits.aspx
(Robart’s website currently broken, but usually works. Until fixed: www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXET23)
kaliatech,
Thanks for the link. Just what I was looking for and reasonable too!
Regards,
TCIII