|Topic Review (Newest First)|
|01-08-2008 08:18 AM|
Thanks for all the input. I'm understandably trepidacious about cutting a hole in my boat. Especially so, since I've never done so before. I'll let you know how it goes.
Gemini Catamaran Split Decision
|01-07-2008 08:55 PM|
Scott, odds are oyu have a lightweight filler in the deck, if anything. I think a standard 1/4" portable drill shouldn't have any trouble--since you are starting with a brand new sharp hole saw. As long as you don't bear down hard on the drill, it will slowly eat its way through without any risk of burnout. It can be hard to see your centering mark past a saw that size, so if you start a pilot hole with a regular bit, that should also help ensure the big hole is in the right place.
Assuming the deck is cored--remember, you want to chew out some of the coring material around the hole, refill it with epoxy, and let that set up then redrill/sand as necessary for a good fit.
|01-07-2008 08:42 PM|
The hole saw is the way to go. I described the process a few weeks ago:
Originally Posted by JohnRPollard View Post
|01-07-2008 08:36 PM|
|shantijwk||Or you will burn out the drill. Also try a pilot hole one size smaller than the pilot bit in the hole saw|
|01-07-2008 08:19 PM|
|soulesailor||Yeah, it's wicked easy. An underpowered drill will probably just take longer.|
|01-07-2008 08:15 PM|
|sailingdog||Not all that hard... you will want a corded drill or a very powerful cordless unit though.|
|01-07-2008 08:14 PM|
|NautiG||Thanks. Sounds like a good technique. It's quite a large hole for a hole saw, and I'm sure it's going to be quite a pain.|
|01-07-2008 08:12 PM|
How hard is it to cut through fiberglass? I've used drill hole saws for cutting doorknob holes and such, but a three inch hole is quite large. I've done the procedure I describe above for cutting larger holes.
Also, my portable drill is probably underpowered if the material is hard. But I'm at a marina, and could probably borrow a cord drill.
|01-07-2008 08:10 PM|
|soulesailor||One word of caution: when you start boring your hole it is likely the hole boring bit will grab the material (your cabintop in this case) and jump out of control, skidding along the deck and making a mess. To avoid this start drilling, slowly, and at a slight angle to your cabintop. This way only a small portion of the bit is cutting. Slowly revolve the bit around a full revolution until you have gone all the way around. Then you can drill more vertically, although you may still find it easier to keep it at a slight angle.|
|01-07-2008 08:05 PM|
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