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August 28, 2014

Woodturning How to Video – Wood Turn a Segmented Knob on a Wood Lathe

Woodturning How To Video – Wood Turn a Segmented Knob

 

Woodturning how to video - segmented woodturning - turned knob with tenonThis woodturning how to video shows how to wood turn a segmented knob on a wood lathe using basic turning tools. In this woodturning project a parting tool, roughing gouge, and spindle gouge with a fingernail grind were used to wood turn the glue up. The woods used for the glue up were hard maple and African mahogany.

Woodturning how to video - segmented woodturning blockThe YouTube woodturning how to video shows a woodturner tightening the segmented glue up into the lathe chuck and then turning a tenon. The tenon is then reversed and tightened within the lathe chuck so that the woodturner can woodturn the main body. Notice how the designs in wood appear as the woodturning takes shape.

 

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Woodturning how to video - tenonA star pattern of maple emerges in the woodturning how to video as the woodturning project progresses. Watch how the  two laminated woods contrast one another as the woodturner rounds out the knob. Since the star pattern is solid throughout the wooden block, the white tips of the maple star appear as white lines between the arched African mahogany on the outside perimeter of the segmented woodturning.

 

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Woodturning how to video - Segmented woodturningVarious grits of sandpaper are used to sand and smooth the wooden project of the woodturning how to video. The woodturner starts with 120 grit and progresses to 320 grit wet & dry sandpaper. Afterwards, the woodturning project is nice and smooth to the touch.

 

 

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Woodturning how to video - Segmented woodturningFinally, the woodturning how to video shows how a wood finish of Tried and True varnish oil finish is applied. The lathe chuck still has a firm grip on the tenon, the wood lathe is turned on, and the finish is a applied using a paper towel. Only a small amount of the oil finish is necessary for a few reasons. The oil varnish simply goes a long way and the segmented woodturning is small. Also, the woodturner wants to avoid any splatter of oil as it is applied to the woodturning project. For this reason it is still a very good idea to work safe and always wear a faceshield during the application of the wood finish.

 

Watch more YouTube woodturning how to videos online.

…Your comments are welcomed…

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Comments

  1. William Yonescu says:

    Beautiful job! I’m a real novice at this and have a question that must have been asked 100 times but I failed to find any reference to it. The finished product is beautifully centered on the 6 sided star pattern, yet it was first centered with a 4 sided chuck to turn the tenon for the final turning. While the photo (2nd photo) of that tenon shows it off center (which would be easy to happen with the 4 sided chuck) the final knob is nicely centered.

    Am I asking a silly question?

    Thank you for your response… Bill Yonescu

  2. Bill…

    It’s an interesting question that you ask.
    Initially, a six sided (hexagon) block is to be turned. The first thing to do is to turn a round tenon. To turn the round tenon, the six sided block needs to be secured in the 4 jaw chuck.

    Once the round tenon is turned, it is secured and centered in the 4 jaw chuck. Theoretically, the six sided block is now centered and all points of the star should be equal once turned.

    Keep in mind, everything is focused on being centered. (When the wood segments are being glued together, the clamping of the segments, and even the cleaning & sanding the hexagon block.)

    When we finally get to the lathe, we continue with the goal of turning a perfectly centered knob. Experience and skill are the determining factors for our desired outcome.

    One thought…It does not matter how many sides the wooden block to be turned is. The reason is because a round tenon will be turned. The 4 jaw chuck will easily secure the round tenon. The only question that remains…Is the round tenon and the block centered within the 4 jaw chuck.

    Yes, the tenon is slightly off in the 2nd photo. Fortunately, the finished product reveals a fairly well balanced six sided star.

    Thanks for asking an important question,
    Bob

  3. William Yonescu says:

    Hi Bob,

    Thank you for the rapid reply. I’m in the process of making the sled for the bandsaw and will try cutting the diamond shape pieces within the hour. Time will tell. I’m thinking of making (trying to make) a XMAS ornament. Thank you very much… Bill

  4. Hey Bill,

    You’ll be up & running in no time. Once you start cutting the segments and arranging them, you will see new design possibilities. Have fun gluing them up. Wrapping tie wire around the glued up segments makes for a good clamp. It works well because it applies even pressure throughout.

    An Xmas ornament is an excellent idea. Bet you make more than one of them. Good luck with it!
    Bob

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