LM18 in Perry, GA

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Jwhitakeriii
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Re: LM18 in Perry, GA

Post by Jwhitakeriii » Fri Jul 20, 2018 5:32 pm

Crystal with the CNC department got it figured out today and emailed me the fixed plans. Thanks everyone
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Jwhitakeriii
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Re: LM18 in Perry, GA

Post by Jwhitakeriii » Mon Jul 23, 2018 9:31 am

Hello I got an update on my build. I got my strongback built with the help of my brother (and my two boys) and frames cut over the weekend. Still have some stuff to cut before epoxy and fiberglass gets here Wednesday. I'm off on Friday so I hope to put a big dent in the project this coming weekend.
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Capt UB
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Re: LM18 in Perry, GA

Post by Capt UB » Mon Jul 23, 2018 9:37 am

Looks great!

Put painters tape around the edge of the frames. They will not get glued to the hull as you build!
FS14 (SandPiper) launched 10/20/2018
LM18 on hold till cooler weather
NC16 build starts 11/3/2018

Jwhitakeriii
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Re: LM18 in Perry, GA

Post by Jwhitakeriii » Sat Jul 28, 2018 9:22 pm

Making some progress. I've got everything cut and glued. I've committed to the rounded chine option and am in the process of cutting my kerfs in the bottom and side panels. I'm using my strong back as a table for this then will clear and place the frames and molds then start stiching tomorrow. As you can see I have plenty of big helpers that are keeping focused and on task (Grant always wants to wear his "keets" aka cleats to work on the "magoona madro") I do have a question. The kerfs for the rounded chine are spaced 1 inch (on center I assume) but what should the thickness be? A saw blade 1/8 or more? Excited for this thing to start looking like a boat.
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seaslug
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Re: LM18 in Perry, GA

Post by seaslug » Sat Jul 28, 2018 9:58 pm

I built the FS18 with the rounded bow, and made my cuts with a jig saw not knowing any better and really struggled with stitching the bow together because all the strips were binding against each other. I had to keep trimming off material as I stitched the strips together with a jig saw and multi tool. It was a huge hassle, and very time consuming, plus created more fairing than was necessary if I would have cut with a wider blade. I think the CNC cuts are possibly 3/16 or 1/4", but Reid or Jeff can confirm. If I build another I would cut 1/8" at a minimum. Be sure and use the PVC pipes on the underside, it will make shaping the bow so much easier, and build the strong back so the entire bow area hangs over the end so you have total access underneath for stitching all the long strips. Good luck with the build. Mike

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Re: LM18 in Perry, GA

Post by OrangeQuest » Sun Jul 29, 2018 5:57 am

With the two younger boys wanting to help you could have them keep the scrap wood in "their build" pile! :). Good luck on your build.

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Capt UB
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Re: LM18 in Perry, GA

Post by Capt UB » Sun Jul 29, 2018 7:43 am

seaslug wrote:
Sat Jul 28, 2018 9:58 pm
I built the FS18 with the rounded bow, and made my cuts with a jig saw not knowing any better and really struggled with stitching the bow together because all the strips were binding against each other. I had to keep trimming off material as I stitched the strips together with a jig saw and multi tool. It was a huge hassle, and very time consuming, plus created more fairing than was necessary if I would have cut with a wider blade. I think the CNC cuts are possibly 3/16 or 1/4", but Reid or Jeff can confirm. If I build another I would cut 1/8" at a minimum. Be sure and use the PVC pipes on the underside, it will make shaping the bow so much easier, and build the strong back so the entire bow area hangs over the end so you have total access underneath for stitching all the long strips. Good luck with the build. Mike

Seaslog
Mine are 1/4" CnC cut.

Anyone know of a double jigsaw blade? Like a dado blade.
FS14 (SandPiper) launched 10/20/2018
LM18 on hold till cooler weather
NC16 build starts 11/3/2018

Jwhitakeriii
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Re: LM18 in Perry, GA

Post by Jwhitakeriii » Sun Jul 29, 2018 8:04 am

Thanks I was thinking Reid told me 1/4 inch but wasn't sure. Were they 1" on center (7/8 inch strip of wood left) or was there 1" of wood left on each strip? I guess I will try a router with multiple passes. I like the jigsaw dado blade idea. I wonder if epoxy would hold a few together? 🤔

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Re: LM18 in Perry, GA

Post by Jaysen » Sun Jul 29, 2018 11:05 am

Go get a small handheld router. Use a straight edge, brass collar and a 1/4” spiral cut bit. Probably the safest way to do it. And the way the CNC does it.

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Re: LM18 in Perry, GA

Post by jacquesmm » Sun Jul 29, 2018 12:11 pm

seaslug wrote:
Sat Jul 28, 2018 9:58 pm
I built the FS18 with the rounded bow and made my cuts with a jigsaw not knowing any better and really struggled with stitching the bow together because all the strips were binding against each other.
Yes, that is normal If you do not remove some material.
The length of the curve along the rounded chine is about 3/4" shorter than the hard chine.
When we cut a kit, the 1/4" router bit removes some material. For example 3 slits = 3/4". When you cut with a saw baled, there is too much material. Either you cut it off with the saw or use a small router to do it.
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