Malahini Chine bending

Designs for inboard or outboard power

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Re: Malahini Chine bending

Post by footer » Tue Jul 24, 2018 9:32 am

This is a picture of my steamer. It worked great (for the most part). My problem was with the grain of the wood. The boards I had, had a number of tiny knots in them. They broke at those knots. I tried to adjust the boards accordingly, but there was just too much waste.
I used the white oak and it bent great, with no cracking. I have a much better piece of mind now that I've shoved a hundred screws through it and it's holding up beautifully.
Attachments
IMG_3825[1].JPG
Malahini fiberglass done, splash rails on, and sanded for last coat of epoxy.
IMG_3056[1].JPG
malahini, steamer to bend chines and sheers.

PeterG
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Re: Malahini Chine bending

Post by PeterG » Tue Jul 24, 2018 10:43 am

Nice steamer! What wood did you use for the skeg and the spray rails? They look great. Did you use full length strips for the spray rails or did you have to use scarf joints? Taking notes for my build...
Murphy's Law: Anything that can go wrong, will go wrong.
Griffin's Law: Murphy was an optimist.

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Re: Malahini Chine bending

Post by footer » Wed Jul 25, 2018 9:35 am

The Chines, skeg, and spray rails, are all out of one piece of white oak. A local wood working specialties store had some rough sawn in stock. It was a full 1"x10"x18' clear board. The grain was flawless and straight. It had one straight sawn edge, I planed it to 7/8" and ripped it to size. I actually steamed it for a couple of hours. As you see in the picture, the boards were longer than the steamer, so the ends that stick out only had a minor bend at the stern of the boat, so not steaming them didn't really matter.
My sheers were laminated mahogany. I steamed those and they bent easily. Once they dried, they held their shape too.

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Re: Malahini Chine bending

Post by footer » Mon Aug 13, 2018 4:43 am

It's amazing how after 3 coats of epoxy and a butt load of sanding, it doesn't look much different. Almost ready for paint.
Attachments
IMG_3990[1].JPG
Malahini; 8/10/18 3 coats of epoxy and ready to sand for paint.
IMG_3989[1].JPG
Malahini; 8/10/18 3rd coat of epoxy and ready for final prep for sanding.

PeterG
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Re: Malahini Chine bending

Post by PeterG » Mon Aug 13, 2018 5:35 am

Wow :D
That looks great! Nicely done.
Murphy's Law: Anything that can go wrong, will go wrong.
Griffin's Law: Murphy was an optimist.

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DrBryanJ
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Re: Malahini Chine bending

Post by DrBryanJ » Mon Aug 13, 2018 5:45 am

Looks really good. Keep plugging away
Bryan

Building a malahini "Mona Lisa"

My wife said "If I build a boat, she's getting a divorce."

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hoodman
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Re: Malahini Chine bending

Post by hoodman » Mon Aug 13, 2018 4:40 pm

Looking great!
Matt

Building a Geronimo......!
viewtopic.php?f=2&t=25139

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Re: Malahini Chine bending

Post by footer » Fri Aug 17, 2018 3:48 am

Thanks. Final sanding of the epoxy and taping for the bottom paint and water line. Is there any special calculation of where the water line should be, or is it kind of builders choice. I just set up my laser level to where I thought it might be and went above that.
8/17/2018
Attachments
IMG_4264[1].JPG
Malahini; Final sanding of the epoxy. Ready to clean off and start painting.
8/18
IMG_4269[1].JPG
Malahini; taping off for the bottom paint to the water line. 8/18
IMG_4270[1].JPG
Malahini; taping off for the bottom paint to the water line. 8/18

TomB
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Re: Malahini Chine bending

Post by TomB » Fri Aug 17, 2018 4:08 am

The boat looks good. Have a look at the drawings and instructions. The design water line is described the instructions for my boat. Tom

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DrBryanJ
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Re: Malahini Chine bending

Post by DrBryanJ » Fri Aug 17, 2018 5:38 am

I have to reread my instructions, but I believe the waterline is at the top of the building form.
Bryan

Building a malahini "Mona Lisa"

My wife said "If I build a boat, she's getting a divorce."

eckie63
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Re: Malahini Chine bending

Post by eckie63 » Sat Aug 18, 2018 5:57 am

That is a mighty fine looking boat! And you got those chines bent nicely too. Is it a flat bottom in the back or does it still have a slight V back there?

I like your steaming rig too. When I had to bend the chines on my boat I was also pondering the various options. I had never done it before so had no idea what to expect. I came across this video showing a method for steaming and bending in place. It doesn't work for every application but it worked great for my chines. Mine were only 3/4" thick so I don't know how it would work for thicker material. I know you are already way past this stage but thought I'd share this in case someone else hadn't seen it and would like to give it a try.
My previous project: Popular Mechanics PM38 from 1962 (Not a Glen-L design though)
A neat method for steam bending in place.
Using Tractor paint for your boat. Great for trailered boats.

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Re: Malahini Chine bending

Post by footer » Mon Aug 20, 2018 4:53 am

Thanks for the info. I did find the waterline on the prints, but my wife won out as she wanted to see a little more color on the sides. So, it's about 1.5" higher than the prints. Hey, it's just a line, right?!
So, I went to a local professional paint supply in town and got some hi grade epoxy paint and painted her out. Still have the white water line to finish. The only problem is, even though it's gloss paint, it came out with a satin finish. I'm going to call my supplier today. I'm assuming I am going to have to put on some Spar Urethane to make is glossy.
Yes, youtube has a lot of good videos on steaming, which is where I got my ideas from. I saw the one for steaming in place, but went with this method.
Attachments
IMG_4298[1].JPG
Malahini; Bow view of fresh epoxy paint. Still have the white water line to finish. 8/18
IMG_4300[1].JPG
Malahini; Two coats of epoxy paint on both colors. One quart of each color was enough for two full coats. 8/18
IMG_4301[1].JPG
Malahini; Stern view of finished epoxy paint. 8/18

PeterG
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Re: Malahini Chine bending

Post by PeterG » Mon Aug 20, 2018 8:27 am

Looks great! Classic Chris Craft paint scheme, having some bottom paint above the waterline.
Looking forward to the flip!
Murphy's Law: Anything that can go wrong, will go wrong.
Griffin's Law: Murphy was an optimist.

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Posts: 257
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Re: Malahini Chine bending

Post by footer » Fri Aug 24, 2018 3:09 am

Got my white line painted. Now, I have to go over the whole thing with a clearcoat and hopefully it will make is shine. The epoxy paint I got was gloss, but not really. So I bought some two part urethane that should gloss it up.

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Posts: 257
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Re: Malahini Chine bending

Post by footer » Fri Aug 24, 2018 3:12 am

Oops. Hit the wrong button again. Here are the pictures
Attachments
IMG_4422[1].JPG
Malahini; White line painted. 8/18
IMG_4428[1].JPG
Malahini; White line painted. 8/18
IMG_4421[1].JPG
Malahini; White line painted. 8/18

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