Discussion in 'Construction' started by Justin Ragucci, Apr 8, 2018.
whats the easiest way and tool to cut windows out of a fiberglass hull?
Harbor Frieght multi tool. Cheap and cuts without fine dust, drill every corner and go slow. Cut off wheel on dremel works very well too but generates fine dust that sticks to everything. Cut it outside with boxfan blowing from your back, to blow most of the dust away. Dust mask required .
Thank you yeah I was going to cut it outside and I have the dust mask since I paint mintures and I use a mask when priming them.
Is time to cue up the McSpuds safety tip on rotary tools! pictures and cringe factor courtesy of Lee M.
Oh yeah that’s not good I will for sure be careful to not cut my self and take the upmost care when cutting
Multi tool is much safer than rotary.
Scroll down this page for an example of using the Harbor Freight multitool in cutting hull windows.
Ah yes I do have one of them at home when the weather gets nice I’ll have to start cutting the hull ribs are 1” and it’s 1” from the top and 1” from the bottom correct?
No, you should read up on the applicable section of the rules (well you should read all of the construction rules before building, just for familiarity). Part II, Section A covers your questions http://ircwcc.com/main/home/rules/
which hull are you cutting, the Cleveland or prinz?
Ribs can be at most 3/8" wide, a lot of people use 1/4" ribs so they get more of them, or a combination. There is a tool to help calculate the number of ribs here, it can also be done by hand. Once you know how many ribs, you can calculate the spacing by calculating:
(length of ship - 3") / (# of ribs + 1)
Here is rib calculator http://ircwcc.com/main/rib-calculator/
The deck rim (top of the hull) can be at most 3/8" thick
The bottom of the windows needs to be at least 1" below the waterline. To find the waterline you can fill the hull up with weights to the correct weight, then float it to mark the waterline, then go about 1 1/4" below the water line (waterline width is 1/8," then 1/8" for buffer)
You should look through some build threads to see how others have cut out the ribs. You should mark them first (1/4" tape works well), then take a picture and post it here so we can make sure it looks right. Here are a few links showing what i mean by marking them first
Yeah I was just reading the build rules and was like oh yeah I am wrong but I will do that and I will
Be cutting the Cleveland hull first because the Prinz one isn’t in my hands yet. But I will probably be doing 1/4” ribs because it’s just easier to measure out and I get more which in turn is nice. I did see the rib calculator so I will have to use that and then float the hull and then mark the lines and I will sure post pictures before cutting. I always measure twice cut one.