How do you cut foam to a partial depth?

[arjay]

Maybe a fabric store

 

[rwsmith]

This guy has it figured out.

Cutting Gun Case Foam (lots of photos) -

 

[CAJUNLAWYER]

Well, I'll say it....Why cut it in the first place???????????
Put the guns in, they compress the foam when you close the case
and voila-instant snuggle up. That way you can use the case for different things. It doesn't work for something like a big old boxy camera, but for something as flat as a gun there is no need to cut out an outline other than just looking for something to do.

 

[RalphMP9FS]

Well, I'll say it....Why cut it in the first place???????????
Put the guns in, they compress the foam when you close the case
and voila-instant snuggle up. That way you can use the case for different things. It doesn't work for something like a big old boxy camera, but for something as flat as a gun there is no need to cut out an outline other than just looking for something to do.

Without the foam cutouts, the pistols can still slide in the case if it's disturbed enough. They can't move at all with the cutouts.

 

[K-22]

I guess I'll have to be careful with the razor. I don't have a vise where I can secure the foam wedged in between two pieces of wood. I think a hacksaw would just rip the foam if it's unsupported.

A good bread knife is my tool of choice for straight cuts on foam rubber. Works great.

Best,
Gary

 

[shouldazagged]

Nice job. It looks as if you got exactly what you wanted.

 

[raljr1]

We used electric knives to cut foam insulation all the time in the factory I manged in Florida. Works like a charm.

 

[venomballistics]

A cute custom fit trick is to place the items you want fitted into the bottom of the case.
Lay cloth over the case, fill it with 2 part expanding foam.
Lay a sheet of plastic, parchment, or similar over the foam, put a sheet of ply over that and add about 30 + pounds of weight.

Once cured remove the cloth covered foam block, and the items you want cased.
Flip the foam over place it back in the case and your done.

 

[RalphMP9FS]

Here's a better pic of the cut foam using scissors for all the cutting and layering: