I know a guy....

[Paul Taylor]

that has a lath. I want to try and make some venturi's. Anyone know what that white plastic looking stuff is called that people make venturi's out of?

And can I get it at Home depot or Lowes?

Thanks!

[Mark Scarborough]

Normally,
its Delrin, not sure about home depot,, I know that Mcmaster Carr used to have it,, mail order

[Brett Buck]

that has a lath. I want to try and make some venturi's. Anyone know what that white plastic looking stuff is called that people make venturi's out of?

   Delrin (brand name), Acetal (generic name).

     Brett

[Larry Renger]

For some reason, known in the orient as POM, probably related to the formula?  Nylon would work OK, but is a pain to machine as it is so soft.  Good old Aluminum is easy to machine and readily available.  Also, that should be a "lathe"; a "lath" is a strip of wood, which really is awful to use for machineing anything. 

[frank williams]

Try,
www.smallparts.com

http://www.smallparts.com/s/ref=sp_search?searchNodeID=16414291%7C350666011&keywords=delrin&Action=submit

[George]

...a "lath" is a strip of wood, which really is awful to use for machineing anything.  

It sure holds plaster on the walls, though.  

I have used nylon electrical spacers to make venturis a couple of times, but I was not using a lathe. I used a drill press, and an X-Acto. I don't recommend it...go with Delrin or aluminum.

George

[Dick Pacini]

UHMW (ultra high molecular weight polyethylene) is an excellent material for that application.  I have machined it many times with great success.

http://www.olsonmfg.com/Material_Distribution/Material_List/UHMW.html

[ChrisSarnowski]

You can make the nylon spacers work but it is miserable to machine. The Acetal / Delrin is much better.

I did the drill press / knife scheme on a few nylon spacers.

You can also get the Acetal rod off the 'bay.

-Chris

[Glenn (Gravitywell) Reach]

Its also readily available on ebay.

[don Burke]

Take your pick, 5/8" or 3/4" dia is usually a good start.

http://www.mcmaster.com/#delrin-rod-stock/=6v8s1o

McMaster-Carr usually delivers to me in SoCal in less than two days.