I'm looking for a supplier of some large diameter (6" to 8" ID) plastic tubing, preferably convoluted with a flex angle of 90*.

I'm needing this to cover a robotic arm for a school project...I've found tons of small tubing, but dick on larger sizes. I've exhausted the usual suspects of mcmaster, grainger, etc. I've browsed a ton of individual tubing mfg. websites, and nobody seems to make large tubing with a decent flex angle.

Any help guys?

8" diameter flexible hose

http://www.sharpesafety.com/catalog/product-display.php3?ID=814

What am I missing, if this hose will not work for your application?

8" flex for heating and air,has a plastic liner and silver on the outside.perfect for robot arms and found at any home store

Guess I left an important detail out. . .we intend to use the tubing as a waterproof sheath (with modifications of course) for the arm, so we can submerge it in a tank of water.

I think that hose Swag posted a link to will work since it's neoprene coated. I just need to check if a short section of that hose (1'-0") will still flex well.

The problem we were having is that we could find large diameter hose/tube, but none of it would be flexible enough and it would limit our arm range of motion (minimum of 180* sweep needed).

I'm pretty sure you can get surgical style rubber tubing with an 8" dia. If not make a tube out of sheet rubber and contact cement.

Go to an industrial hose supplier. I know Houston Hose and Fitting over here has every size and application of hoses and ducting and crud.

http://www.gortite.com/bellows/enclosed/index.html


:smokin: