Hollowing a Wood Plank by "Backing Out", S2-E22
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- Опубликовано: 11 апр 2020
- Can you bend wood without steaming? In this episode I demonstrate a procedure called “backing out”. Backing out is the process of scooping out wood from the inside of a plank to give it a little hollow or concave surface. This allows the plank to appear to be bent and sit tight up against a curved frame. The degree of backing out changes along the plank’s length as the curve of the frames it rests on changes. I will do this with the round bottomed hollowing Plane I had created in an earlier episode. This plane, also referred to as a Coopering Plane, is an important tool for a shipwright who is “backing out planks” in carvel planking.
Хобби
The boat is looking good! Thanks for the videos.
Your video content is like a carefully brewed glass of wine.
After I have accumulated a certain amount of experience and knowledge, I can only discover the subtleties after watching it a few more times.
Bob, your video editing is nearly as good as your boat building! She sure has sweet lines and you're doing great. As I cold molded mine, I'm fascinated by the carvel planking and realize that I will have to take a crack at this on some later project. Your explanations are clear and some of the best demonstration I've seen when it comes to planking. Stay safe and well Brother.
Thanks Chuck!
you bet! one of my subscribers mentioned you and your project in a comment on my latest video and i told him that I follow you closely and that we had actually met at the woodenboat show. I see that they have postponed the show this year. My wife keeps suggesting that we trailer my Haven up there. seems a long way. I bet it felt like a long way for you last year and I'm further west still. cheers!
Bob I really liked the videography and editing on the time lapse on the first 4 minutes. Well done - it was fresh and fun for your channel. Great to see the curved bevel planar in action as well. Thanks for sharing!
Love the show. I am not planning to build that style of traditional boat but am already planning to build some of the tools you have made for my own collection. There is a suggestion that I might offer that came to mind while watching this episode. Several years ago I forced myself to learn to use and sharpen a cabinet scraper and it has changed the way I approach woodworking. During the backing out I recommend using a curved scraper which is much quicker than sanding to remove the planing ridges. Often I find that little to no sanding is required afterwards, saving me lots of time and dust. Might serve you well here as well.
I was thinking the same thing. Sanding dust clogs the grain as well, planed/scraped takes oils much better in the finnishing too.
Wow it is a big project not everyone can make, but just watching this video is fun and interesting.
I think I know someone that has sore shoulders. Nice job and it's coming together nicely. I must say you are very clear with describing the task your accomplishing.
Nice one Bob stay safe
You have such a lovely way of presenting your craft. Thank you!
I came for the plane!
That planking is looking fabulous Bob. Excellent explanation on laying out the plank and then backing it out. Seeing that beautiful plane at work is truly exciting. I can't believe that it has been a year since you started this new build, but what a wonderful year it has been. Thank you so much for the great videos. With these videos on the boat I may actually catch up on getting the tools made that you have made videos about. Take care, stay safe and stay well.
Backing out appears to be a religious experience, with the low saw horses and the planing while kneeling! Beautiful plane! Thanks for the great videos.
I'm sure he is kneeling so he is in position to double-check the frames in the position he is planing. But yeah, that would leave me in so much extra pain. I think the boat, and the planks I am working on, would be at a standing height on horses instead of ponies.
You do an excellent job explaining and showing .
Bob, the boat is really beautiful. I can't wait to see it complete. But what really impresses me is the time and love that you put in to making your tools so that they are just as beautiful as your actual project. Awesome! Thanks for posting this! May you and yours have a blessed and happy Easter! Be safe, stay healthy and may the wind be always at your back!
That was a nice montage you had there!
Coming together beautifully!
Very nice, again!! Stay healthy 😊
Sure! I'll watch them all again! Thanks!
Bob, love your video series and the slow methodical approach you take to every task. It shows the teacher in you shining through... one question, I've seen you bore slots into wooden block a number of times and always wonder why you don't have/ use square mortising drill bit to remove this material. I first saw them used by Norm Abrams on his " This Old House" series and always thought they were quite ingenious.
You could make possible this boat become far more available to folks that would like one. I could build this boat if i had a kit with already sized wooden parts. A computer program with all the ready to install wooden parts having been scan to it. So,next time you build a 12 1/2 Haven maybe you'd scan the wooden parts just before final installation? Love the videos. Thank you for your efforts.
Hi Frederick,
That would be nice. However, I do not own the rights to the Haven 12 1/2. Those belong to the heirs of Joel White, the designer, and the Wooden Boat Store.
There are hundred of small sailing craft kits available of similar size. Here is a link to some.
www.clcboats.com/shop/wooden-sailboat-kits/
I'm so glad you're enjoying the videos. Thanks for watching!
Cheers,
Bob
Really beautiful work, Bob! 😃
Now I'm starting to want to build one too! 😂😂😂😂😂
Stay safe there! 🖖😊
It is fascinating to see the small wooden boat construction skills restated so clearly. I used to work on repairing clinker built dinghies (damaged by over-enthusiastic Sea Scouts), but it seems so crude compared to the carvel construction.
A couple comments.
1) I always thought these planks would be formed by steaming.
2) I really think you should find a way to do this where you're not on our knees. That's going to take its toll on you.
Oh the man-hours to complete such a project!
That is one reason why boats, especially wooden boats, cost so much to buy.
One note on the physics of tapping the front of the plane to back out the iron - the principle in effect here is the law of inertia: an object at rest tends to stay at rest. When you force the body of the plane down, the iron tends to want to stay where it was, defeating friction for a moment.
The equal and opposite reaction to your hammer blow against the plane is the force the hammer experiences that causes it to bounce back away from the plane.
Almost correct. You are right that the equal&opposite is wrong, but the hammer coming to a stop is already the equal&opposite force, it doesn't have to bounce back (stop going down is enough).
You are also right about the law of inertia but what is at play here is the difference between static friction and dynamic friction. When the sound-wave of the tap of your hammer travels through the block, it lessens the static friction for a fraction of a second, allowing the blade to come loose (think of tapping a barometer to see which way the needle moves).
If it was just inertia, the blade would come up each time you try to use the plane as the wood to be worked would push against the blade.
Very nice work I like it.
Très joli travail j'adore.
عمل رائع جدا
I’ll bet those white cedar shavings feel really good coming off that white cedar we picked up in Rhode Island Bob.
They do. Some of the nicest soft wood I’ve worked with. And a bonus is my studio smells amazing. I look forward to cracking that door open every morning.
Thanks for your help last summer. Bummer we can’t do it again this year.
Cheers!
You might be the guy to ask,years ago a woodworker on PBS had a lesson on building wet box for sharpening tools ,he used a technique that compressed the wood fibers along the edge with wire and then planned down even ,the idea that the compressed fibers would make a gasket seal when wet and swelled, has this technique ever used in boat construction, thanks for your lessons
This will work great for my Adirondack chairs, except I will use it in the reverse. I know, it’s overkill, but, “make it beautiful!”
6:12 I always do my micro adjusting by taping at the toe (from the front) to get a deeper cut or tap from behind at the heel to get a shallower cut. I never ever tap on the blade.
She is coming right along and looking beautiful. There is something very calming about using a good sharp plane on wood and hearing that sliding snick sound. Sanding not so much. Could you have used the thickness planer to reduce the plank thickness?
Thanks Tom, I do love the sound of the plane as well. The thickness planer will only plane wood flat. So, hence the planks need to be hollowed out by hand.
Thanks for watching!
@@TheArtofBoatBuilding OK I was thinking when you did the final thinning of the out side of the plank but I see what you say
It is called "re-sawing",
if you are talking about the last slice at the bandsaw. Yes, the thickness planer could be used instead, but the offcut can be used for battens for shaping/spiling. If he used the thickness-planer, all he would have left over is shavings and dust. Just a thought.
I'm getting impatient, I want to see the boat in the water. I'm glad you have the patience to do the job right. It is going to be a beautiful and very well built boat. Comment: the background music should be a bit farther in the background. When I set the volume to your voice then the music comes on too strong. Thank you for sharing and please stay healthy.
Glen Crandall me too! Looking forward to launching. However, still lots to do and fun times in the shop.
Thanks for the audio suggestion. I’ll pay attention to it in the next video.
Thanks for watching!
Yeah, I set the volume to the music then can hardly hear his speech. Just can't find a happy middle ground. He needs either a quality lapel mic, or a bit more practice at editing the sounds. Personally, just listening to the tools and wood would be fine with me.
I love your videos. I have a question though. Why don’t you make yourself a more ergonomic / higher work station so you don’t plan while kneeling.
Roland Sawicki I like different work surfaces. Keeps me limber. I started doing the backing out on the low horses when checking each frame with the contour gauge ( before I realized they were mostly the same). So located near the boat and low made sense. Just got comfortable there.
Thanks for watching! Cheers!
Great skill in many ways, but why work on your knees when you can do it standing up ?
I have the same profile gauge that I inherited from my dad
An absolutely beautiful job! But my God, it would take 5 years to build a dinghy.
Ha, I thought you were about to break out the geometry lesson and calculate the radius of the curve when you just drew the line on the frame. Genius :D
Would have to go deeper than just geometry, the curve is likely not a pure arc, but more of a parabolic curve.
Hi, Why plane the whole board cant you just plane where the frames are. I apologise if this is a dumb question
Much easier to plane in long stroke. The frames are 9” apart so it would be difficult to plane just at the frames. Also wouldn’t look very good on the inside.
Thanks for watching!
Far easier to plane flats on the frames
Kayu apa yg dipakai
kenari hitam ( Black Walnut)
@@TheArtofBoatBuilding wauw...good job....thank you
Di indonesia my country ada
Excellent episode but please lose the overdriven guitar track. Thanks
Backing out is totally unnecessary. All you have to do is go to lowes, pick up the first board you see, blindly purchase it.
When you get home, you will find it to be warped in the perfect shape that you are looking for