How to Half-Hull Model - Directly from Boat Plans, Part 2
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- Опубликовано: 26 авг 2022
- Ever want to make a half-hull model directly from boat plans? The Art of Boat Building presents the second part of half-hull modeling. Boat builder, Bob Emser, guides us through making a half-hull directly from boat plan. Using the plans from famous Herreshoff 12 1/2 footer, Bob shows how to adjust the thickness of lifts and add a watering of contrasting wood. Carved of Honduras Mahogany with Aspen accents this beautiful model is one you’ll want to make yourself.
“If you’re going to make it, make it beautiful.”
Bob Emser
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Хобби
When are you going to start the tender “ Victoria “ looking forward to seeing and learning this build.
That's what I was going to ask. All this stuff about half hulls is interesting but I'm more interested in actual construction.
Hi Paul,
I appreciate your respectful comment. I have started the tender. You may be aware that Steve's videos have about a 3 week lead time. (what you see was done 3 weeks ago) I've been working hard to get close to his schedule so that there is a continuity between the channels. I've always had an interest in half-hulls and felt this was a great opportunity to build a few and get a few weeks ahead.
As I got into Victoria's hull I realize I need to pull lines directly off of the half-hull. This will result a more accurate line drawing with the proper amount of stations for strip planking the hull. So I will be doing a video on how to pull the lines and creating the line drawing in preparation for lofting the tender.
At 68 years old I have learned that preparation in the foundation for success. I appreciate your, as well as all of the viewers, patience in the building of Victoria. I promise you won't be disappointed!
Thanks for watching!
Cheers,
Bob
@@TheArtofBoatBuilding I am looking forward to enjoying, and learning from, anything you choose to share. Thanks so much for going to the enormous effort of producing these videos. I am signing up for supporting your channel this morning!
@@plakor6133 Thank you so much for your comment, you have no idea how much that means to me. And thanks for your support is is much appreciated!
Cheers,
Bob
I am always grateful for your content. A craftsman’s touch, an artist’s eye, a thirst to learn, and a dedication to share. Bravo 👏
Lofting is fundamental to boatbuilding. What a fantastic way to demonstrate it. Great work Bob. I enjoy your videos greatly. Ian
If you're going to build it beautiful, build it like Bob does. So well explained.
When I first started watching Bob, I thought his editing wasn't great. But now I've been following for a year or two I think the editing is (and not to mention his theme tune) fantastic, and just something that makes me happy on a Friday.
The waterline made from a contrasting wood was a great idea. I really love these pieces of wall art.
I must admit, wow, this is all over my head. I just cannot see with all of those lines. However, your explanations are fantastic, well thought out and very helpful. Thank you for taking the time to make videos like this.
I love the availability of a brad nailer and plastic nails for glue-up! Thanks!
Thanks Bob for making what looks so complicated seem simpler. I've built a number of cedar strip canoes & kayaks, and people sometimes say "I could never do anything like that". My response line is "There isn't a single step in building this that you couldn't do." It's just breaking it down and doing each step carefully & completely before going on to the next one that makes a finished boat (or anything else) beautiful. But it's been experience that gave me the patience to do it that way.
Hi, Bob.
Thanks for another peaceful Saturday morning video. I'm enjoying every minute!
Really beautiful work, Bob! It looks fantastic! 😃
Stay safe there with your family! 🖖😊
Thank you for such great educational content. Looking forward to see the "Victoria".
Another excellent demonstration of the lift style of building half models Bob. The alder waterline really set off the mahogany and give a striking look to the model. I am excited to see the video of taking the lines off of the Victoria half model. Thank so much for this educational portion of boat building. Have a great week ahead.
comment to show appreciation for your channel, and to please the algorithm
Thank you
That model looks great. Thank you for making and posting these videos.
Thanks Tom, I'm glad you like them!
Hello Bob! From NE Tennessee. I am a model builder and after a while I ran out of places to display my models, so I started building a few half-hull models. I have one that is a sloop rig, the Emm C Berry. About fifty inches long. In other words, the model is complete but only one side. I enjoy your videos.
Thanks Chet!
Neat-O!
Now you need a half tub of water to try it out.
Not so sure it will float upright... 🤔
Great work Bob. I have an old compass plane that I forgot about. I haven’t finished my deck yet. That will be perfect. Great job Buddy!!
Thanks Chuck. Yeah the compass plane it prefect and fun to use.
@@TheArtofBoatBuilding I'm still searching the antique shops for one of my own. No luck so far. (Fixed and limited budget prevents me from grabbing one from eBay.)
Sweet! 👏👏
Nice looking model!
I have read the book, “Boatbuilding” by Howard I. Chapelle several times over the last forty years . In 1995 I made it my mission to study the book and thoroughly immerse myself in it so as to be able to draw plans and build models or full size boats.
I am of the opinion that anyone with basic skills and crafty mind could take that book and become a boatbuilder. To me it was like taking a course in boatbuilding. Last year designed and built a model of a seventeen foot V hull skiff that I was hopeful of building full size. I used the station lines in order to build my model. I guess that the thought of using the water lines never occurred to me and it does seem to be a simpler method.
Hi Scott,
Howard Chapelle's book is and excellent. I have gleaned a lot of information from it. Glad to hear of your successful model. Station, Water, and Buttock lines all work, the nice thing about Waterlines and Buttock line is that the grain of the wood in running fore and aft which makes carving easier. Waterlines are good in presentation models in that you can add a boot stripe which fun.
Thanks for watching,
Bob
Fantastic work Bob! Great video!
Many thanks!
Very nice, very very nice.
Well done Bob. [KING BOB! (Minion's movie)].
Love the contrasting L.W.L. on the half hull model. Makes it kinda special. Just had to bring out the artist for this one didn't you 😉?
Can't wait to see part three and what you do to step it up for the third model. Since I'm behind on the videos, I don't have to wait, I'll go and watch it right now. Yay! 😃🙄
good stuff
Beautiful model Bob. Wouldn't it be nice to make a Half-Hull model of Arabella that can hang in Steve's cabin ?
Indeed! We'll see if that's something he'd be interested in.
@@TheArtofBoatBuilding Maybe you could add the line drawings to your patreon list.
@@johnshoureas1629 Is what you're interested in it a lift pattern for Arabella?
@@TheArtofBoatBuilding Yes
What about sculpting a half model first, to find the shape of the boat by feel/eye and then making plans from that?
I always thought that was what they were made for.
Indeed they are. I am currently taking the lines off of the half-hull I created for Victoria. This will result a more accurate line drawing with the proper amount of stations for strip planking the hull. So I will be doing a video on how to pull the lines and creating the line drawing in preparation for lofting the tender.
There are several reasons for making a half-hull.
1. To do exactly as you mentioned. This is the process great designers like N.G. Herreshoff did to design boats.
2. I encourage the making of a half-hull of a boat one would be interested in building. This way the builder can get a true feeling of the shape of the hull. In the online class I teach, Boat Building Bootcamp, one of my mentees build a half-hull of a catboat he was interested in. Afterwards he didn't like the shape of the hull and decided on a different boat to build.
3. Building a half-hull purely as a presentation model. This is a great process for builders that lack the space for building a full scale boat but want to build a boat. I know of boat owners that have carved half-hull of their boat. They are great works of art to display.
Thanks for your question and watching!
Cheers,
Bob
I hope you are going start on Victoria. I am really interested in seeing it come together
Please read my response to this same question from Paul Stephens. I've pinned the comment so it's at the top for you convenience
"Herreshoff" - a German family name - in German is not pronounced as Herre-shoff but as Herres-hoff (where herres means "lord's" and hoff means "court"). And, great channel, content!
Another beautiful half hull model. Such good tips for making this type of woodwork. How long did it take you to actually make each of the models? Thanks for sharing Bob!
Hi David,
If I had not been filming the pattern making, lift cut out and glue, up I guess about 3 hours. The carving and finishing 2-3 Hours.
@@TheArtofBoatBuilding So a leisurely 2 day task. (for overnight dry of glue) Thanks Bob
👍
Thank you Bob - very helpful, as always. May I ask about the rudder? Is that included in the plans and model?
Hi Jamie,
Yes the rudder is included. I'll be adding the rudder in part 3 as it fits in the advanced modeling better.
Thanks for watching!
Bob
many thanks. Your lessons are very very interesting; can you tell me where is possible to find water lines of a j24 sailing boat? have a good day. Alberto
Thanks for this content. I'm curious how difficult it would be to create a half-model for a boat where line drawings are not available. For instance, I'd like to create a half model of my sailboat, but I cannot seem to find line drawings anywhere for it. How difficult is it to extrapolate from a known shape?
Hi Bob,
It could be done. The way I go about it is the have the boat on a level concrete surface. I think a laser level would be your best bet. You would then need to make a straight line a couple of inches from the widest beam of the boat. caulk line on the concrete. Then make some station marks at equal increments. With a couple of right angles (drywall square carpenter square…) measure from the caulk line to the hull at the laser line. Record this measurement at each station. The raise the level in equal increments ( say your using 3/4” material for the lifts the you need to move 6”) these are your waterlines. Record all that info and the plot it on graph paper at 1’= 1 1/2”. Basically your reverse lofting.
Hope that all make sense!
Cheers, and best wishes.
Bob
@@TheArtofBoatBuilding Made perfect sense to me, but I have a very mechanically and spatially oriented mind. I think a sliding measuring rod for inside measurements would be quite handy. Take the accurate measure with the rod, then measure the rod with the same tape for every measurement and plot it. [Ft/in/16ths] and create your plotter for drawing your plans or making your half-hull. If you are an "A-type" perfectionist like some of us, then you could make your plotter more accurate, but 8ths or 16ths are fine for boat building. I believe 16ths are industry standard on most plans.
Drop some salt on glue - will prevent piece sliding...
So, there was no mention of allowing for the half bow stem in the model. The keel is there but not the rabbet line in the stem and fore foot. Can you explain? Is it disregarded?
On this boat the stem is faired into the hull. Additionally, there is what I would call a soft transition at the rabbet line from the hull to the keel. So all those parts are faired together. In the next model of the Dark Harbor the rabbet line is very distinctive so it will be more obvious.
Great video! What model number is your OMAR brad nailer? Thanks Paul.
Omer 12P.25H Brad Nailer
Many thanks :)
I am fortunate to also have the same Omar nailer. The first time i used it on a half model i put a couple in too far away from the centre line and landed up carving in too them. If they had been traditional nails that would have been game over but i was able to carry on. You can notice them if you look hard but i got away with it.
Is there away you can buy full old boat plans? Like if I wanted to build models and shrink everything down to size can I get plans somewhere?
Yes, you candy plans from several sources. I mention in the video that I bought the Herreshoff 12 1/2 plans from the Mystic Seaport Museum. The other source is the Wooden Boat Store which is where I bought the Dark Harbor plans that will be in Part 3.
Both have lots of plans to choose from.
Cheers,
Bob
I found getting line drawings was one of the biggest challenges to making half models. I found an excellent resource was Paul Gartside Boats who sells line drawings of all his boats for $20 each. They are pdfs and can be scaled to whatever size you want to print them to. Having access to a larger format printer definitely helps.
@@MurfittTim Yes, Paul is a great resource as well. Most any office supply store can print large format print. If fact I’ve had several Gartside plans print that way.
Thanks for the suggestion.
Cheers,
Bob
If I ever built a boat, it would be the ugliest craft ever constructed. I’ve never had the talent or patience to make things look nice. I can do mechanical work on cars, but body work? Nope. I can do framing carpentry, electrical and plumbing, but drywall, painting and trim? Nope. Glad there are people out there who can craft beautiful stuff like this.
Loads of people can only look at the outside and think that's all there is. Without you, those finishers would not even have a job. People like you make the world turn. The ones who make it look nice just make it easier to sell.
Pretty is an after thought if it doesn't work properly. You have more value than you seem to be giving yourself credit for. Works comes first, pretty is just a nice add on.
I subscribed to your channel to see you build a boat. Are you going to build a boat?