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CYLINDER MAKING #4: Wooden Hinge for Cylinder... Is it possible?

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Blog entry by BertFlores58 posted 07-30-2012 12:37 PM 2131 reads 2 times favorited 3 comments Add to Favorites Watch
« Part 3: The Original Plan is Better Part 4 of CYLINDER MAKING series Part 5: THE WOODEN CYLINDER HINGE CHALLENGE »

The hardest challenge in this series is to make the WOODEN HINGE for a cylinder side. The difficulty of the curve fitting and the alignment of the pin to cater the correct pivot.

LID PART . The lid being the one that is on top will take the whole arc that will be close to the outermost part and length will just be enough to hold the post on each end. This must be tangent to the circumference and must be at right angle (at first only so as to route the slot that will hold the pin). You may ask how I cut the arc on the ebony to fit the curve side… coping saw, then file, spokeshave and sander. Nothing best but carve into shape.

THE MAIN POST. The plan is to have a vertical post that will run through the length of the main cylinder (the bottom part). This will provide full strength. However, I am testing the sides (made from bamboo skewers and a thin veneer) whether it can hold the lid. Though the lipping is strong, I am still having a reservation that pinned hinge to the sides will be forced by accidentally opening the lid at quick motion. There is also an alternative to fit transverse to support the end posts together. I have not decided yet. Here is what it is until today. I have to wait for the glue to cure on the lid.

Please note that I am using real black ebony (KAMAGONG) the best and very strong. It highlights the design too.

You can see the fitting of the right angled hinge. I have to be very accurate

This is how it will fit on the circular arc… the secret is grinding with a dremel and portable sander.

I think gluing the ebony will be easy to clamp but I will do it later. A lot of question still in the process.

1. How will I make the slot… it must not be through?
2. How will I attach the post and make the pin hole or slot for the pin? Which is the best?

TO TAKE A BREAK, HERE ARE SOME TEASERS FOR YOU. I was playing with some of my boards and cut them into pieces in my circular cutting jig using a router bit (1/8 spiral bit courtesy of Rand) and here are some designs to go.

And here are some of new rounds… I will blog this later when I will blog my circular jig…

Till then hope I can finish it this coming weekend…

God bless,

-- Bert



3 comments so far

View BritBoxmaker's profile (online now)

BritBoxmaker

4439 posts in 1780 days


#1 posted 07-30-2012 07:10 PM

Nice patterns, Bert. As for hinging the cylinder, good luck, a master stroke when you succeed.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging. http://www.theartofboxes.com

View Sheila Landry (scrollgirl)'s profile

Sheila Landry (scrollgirl)

7886 posts in 1664 days


#2 posted 07-30-2012 10:48 PM

My favorite of the teaser designs is the first one you have shown. That would look really nice as part of a box lid. As for the hinge, I will be watching to see how you accomplish it. You are way beyond my skill level, but it is great to watch it come to be. Wonderful work Bert. Always a pleasure to see your in progress pictures.

Have a great day! Sheila :)

-- Designer/Artist/Teacher. Owner of Sheila Landry Designs (http://www.sheilalandrydesigns.com) Scroll saw, wood working and painting patterns and surfaces. "Knowledge is Power"

View adaughhetee's profile

adaughhetee

104 posts in 1427 days


#3 posted 07-31-2012 09:23 PM

The teasers are teasing me, come on give us more! nice box by the way.

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