Cutting fiberlass not the core

[l0keman]

Anyone know how to cut fiberglass and not have to touch the core behind it? It is on a flat surface.

this is what it looks like:


and this is how it Should look:


I am not replaceing the pin. I think the previoua owner had it locked down and ran shallow and that is what caused this mess in the first place. I am just going to erase it.

[l0keman]

Lol... I'm done!


THIS is how it should look:

[knuterikt]

This tool is greate for cutting in cramped spaces FEIN MULTIMASTER HOME RENOVATION AND REMODELING SYSTEM with a HSS blade and depth stop you should be able to cut only in the fibreglass. You might be able to do it without the deptstop also, this machine uses an Oscillating movement to cut.

[dougyoung]

Get a sprial cut out tool from Harbor Freight. Like a combo drill/router with adjustable depth. Think dremel on Barry Bonds Steriods just bigger. About $20. The Fein is a great tool but runs about $350 the last time I looked.

[hellosailor]

Dremel, RotoZip, small router...even a razor knife or sharpened can opener or other "sharp" scoring the same lines several times until you cut through. In this case the Dremel might work better because even if it is not as powerful, it may be easier to use a flex shaft to get into tighter spots with it.

As often as not, once you remove the skin you'll find the core material is in need of replacement as well.

[sailingdog]

A Dremel with a routing attachment is probably the best way to do it. You can accurately control the depth, and prevent it from going into the core material. A regular router is probably too big to fit, but the Dremel will probably fit quite nicely.

[l0keman]

Ya, I have a regular router and it would be way too big. My dremel crapped out on me just before my last move, so I wiil have to head out sometime today to find a new one.