Cutting out a Fiberglass visor area?

This may sound like a stupid question from someone who's been around these boards for so long but I have a question regarding cutting a fiberglass helmet. I've got my MSH2 sitting on the shelf staring at me in the exact same condition it came to me about 2 months ago. I'm petrified of ruining it so I haven't cut out the T-visor yet. I've never worked with fiberglass helmets before so I'm asking what I should do to cut out the visor area. Should I use a dremel tool and just cut it out or should I use something else?

The tight corners towards the ends of the squint worry me with a dremel. What would get into those spaces without ruining it? Any sound advice would be very appreciated.

Hey Chief -

Using a rotary tool like a dremel is recommended for the dirty cut. This is the cut you will make that stays about 1/16th of an inch or so away from the detail lines. A standard fiberglass reinforced cutting disc is a must. Don't use the cheezy discs that came with your tool, they will break nearly on contact. When you get to the tight corners, stop about an 1/8th of an ench before you reach the end of each side of the squint. Once you've cut the top and the bottom of the squint, leaving 1/8th or so of mmeat, you can just snap out the piece you have diligently cut out. After you've got most of the center knocked out, you can safely use a good flat file to get the rest, especially in the tight corcers. And in case you're wondering about the keyslots, a small flat file will be you're friend Just drill a number of 1/16th holes in each keyslot, esentially a "perforated line" in the center of each keyslot. Then, use your trusty little file to true the shapes.

That of course, was the "Sound Advice".

If you're good with the rotary tool, and have a steady hand, you can trim the visor out clean by using the detail lines as a guide, if done right, you won't alter the shape, and you will have very little clean up remaining.

Hope this helps.

On a side note, I don't usually recommend it, but I also use a "Hot Knife" It's a essentailly a 30 watt soldering iron with an exacto blade attachment ... VERY effective, especially on the keyslots. But VERY dangerous. Not only is it sharp, but it's soldering iron hot ... so it will practically cut through you .. almost like a lightsaber
I suppose the bright side is .... you won't bleed to death ! It's cauterized (unless it's an ANH original blade, in which case, you'll bleed like a stuck pig

FP

Fettpride's 100% right.
I'll be honest, I was sick and tired of people raving onnnn & onnnn about how good rotary tools/dremels were supposed to be. That was until I used one.
I can honestly say that I'd STILL be cutting out my visor section if I was doing it by hand.

Fettpride is right.
The dremel will work fine for the visor and the drill and file for the keyslots. Exactly how i did my MSH1.

Thanks guys!