Pink Foam

[knight_toolworks]

I said edge cutting. 3d is a different ballgame. though you still want 18k because ti s hard to keep the shipload high enough on the foam. but if you want to cut it in 2d if you go at tips you will have al to of tearout. You may be able to get to lips with a 4 flute bit but I haven to tested it. the problem with foam is getting a high enough chipload.

[curtiss]

This site has some interesting stuff...

cone calculator / ect...


http://www.i-logic.com/conecalc.htm

[Tony Omachinski]

I'll sand it lightly with 120 grit then put a coat of latex primer on.That allows you to fill any defects with drywall compound without tearing into the foam. Then prime again and paint it.If you need a tougher shell I'll use Styro spray or Sculpt and Coat.

[twelchPTM]

I love the stuff. I use it for prototyping, test runns on files, I've made gigantic signs and other decorations and even halloween costumes with it. I always use latex primer first but then you can use spraypaint or whatever to finish it. One time I was working on a haunted house however and I used spray pain in what I like to call a "controlled dissolve" to make rotting flesh!

[Brian Harnett]

I love the stuff. I use it for prototyping, test runns on files, I've made gigantic signs and other decorations and even halloween costumes with it. I always use latex primer first but then you can use spraypaint or whatever to finish it. One time I was working on a haunted house however and I used spray pain in what I like to call a "controlled dissolve" to make rotting flesh!

Shellac primer works really good too, it gives the surface a hard coat.