For enlarging an existing hole, either a router running against a guide, or my favourite, a 2" sanding drum chucked in a drill. With 80 grit sleeves it will cut scary quick, with 120 grit you get fast and controlled grinding without chipping the gel coat. A shop vac is very handy to catch the debris otherwise it gets everywhere.
Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC On 8 April 2017 at 21:07, svpegasus38 via CnC-List <cnc-list@cnc-list.com> wrote: > A friend in the plastic/fibreglass industry uses tools for cutting ceramic > tile. I tried them and they work great. Just go slow so as not to over heat > the cutting edge. > > > > Sent from my T-Mobile 4G LTE Device > Doug Mountjoy > POYC > Pegasus > Lf38 > > -------- Original message -------- > From: Rick Brass via CnC-List <cnc-list@cnc-list.com> > Date: 4/8/17 20:58 (GMT-08:00) > To: cnc-list@cnc-list.com > Cc: Rick Brass <rickbr...@earthlink.net> > Subject: Stus-List Advise on cutting fiberglass > > As background, I installed an opening port on Imzadi to replace a fixed > aluminum framed portlight, and it didn’t go to my expectations. I had to > expand the existing opening by a small margin, and decided that I could use > my handy dandy Dremel tool to cut the fiberglass laminate. But the cut I > got was far from smooth and straight. So I decided I’d put off installing > the other three ports until I figured out a better way of doing it. > > > > I have three current projects that will require me to cut laminate: > additional opening ports, removing the inner skin on the cockpit locker > covers so I can replace rotted core, and making a propane locker. So my > question is: What would be the best tool for getting smooth straight cuts > in fiberglass laminate? > > > > A friend in the boat repair business will loan me his Rotozip, but I’m not > confident that I would get better cuts that I did on the window opening > (operator error, I freely admit). > > > > Dremel (among others) makes a mini circular saw that looks almost ideal > for making shallow, straight cuts. But corners might be a problem. > > > > A vibrating multi-tool (I still think of it as a Fein tool) seems like a > real possibility, plus having a lot of uses on other projects. But I’m not > sure how well it will cut fiberglass. > > > > You guys are the experts. What tool should I buy (or borrow)? > > > > Rick Brass > > *Imzadi *C&C 38 mk 2 > > *la Belle Aurore *C&C 25 mk1 > > Washington, NC > > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > >
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
