Tampilkan postingan dengan label turning. Tampilkan semua postingan
Tampilkan postingan dengan label turning. Tampilkan semua postingan

Next Project Laminated turning blanks

Minggu, 10 April 2016

Hi All,
Here is another project for a lovely late summer afternoon: turning a bowl from a laminated turning block.
Solid wood bowls are lovely to make and to look at but solid wood blanks that are deep enough for a bowl are expensive and unless a wood turner has the ability and the tools to core out the center of the bowl, most of the wood that makes up the blank will wind up being turned off--essentially you will wind up with a big pile of wood shavings.
An alternative to some of this (it doesnt solve the wood shaving problem) is to use laminated turning  blocks. These blocks are made up of different colored woods, usually scrap lumber left from some other project, and that are glued together into a block which can be sawed into a round shape and turned on the lathe:
There are some disadvantages to this type of blank: you have to be careful in gluing up the pieces. You must be sure to coat the surfaces of the boards completely with a good quality glue and clamp them securely for at least 24 hours. The direction of the grain needs to run in the same direction and you do need to use wood types that are similar in hardness. Using soft and hardwoods together isnt a good idea as the softwood will cut more quickly than its harder neighbors. This results in a very uneven surface.  The other major drawback is the resulting bowl wont have the beautiful grain patterns that you can only find in a solid block of wood.
But there are advantages. Using kiln dried dressed lumber reduces the problems with cracking and warpage that you can have with a solid block. Also you can greatly affect the final appearance of a turned piece by using laminated lumber. And you can use up small pieces of wood so this cuts down on waste and expense.
Lets take our above block and do a little turning:
You can see the outside beginning to take shape and Ive also cut a foot into the bottom. Since youve seen me turn many bowls, Im going to dispense with all the in between photos and show you the finished bowl:
Here is the finished bowl next to a similar block:
This turned very well. I used maple and walnut together and they turned well together and these two woods also give a good color contrast next to each other.
Im going to take the bowl upstairs and apply a food safe finish to it and then tomorrow Ill place it back on the lathe, and polish it with beeswax.
See you tomorrow,
VW
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The Drinking Bowl Turning the bowl

Selasa, 09 Februari 2016

Hi Everyone,
Well, I went downstairs and took a look at the bowl blank...
...and I decided to take it and put a small faceplate on the bottom and turn it. And you can see the set up here:
As I indicated yesterday the mahogany layer will form the rim of the bowl so that is the top and the bottom layer of red birch is the bottom layer. Ill cut the foot of the bowl from this layer in a minute or so.
I began the turning of the outer surface of the bowl and after several minutes of turning, here is what it looked like:
...and you can see how smooth it is compared to the top photo.
Now Ill flip the bowl around and finish the outside and the foot of the bowl. Here we are after several more minutes of cutting. You can see how smoothly cut the exterior is and you can also see the rounded shape like the light blue bowl in my previous posting:
Time to flip it over one more time and begin hollowing it out. You can see that Ive left a cone-shaped section in the center. This cone helps to steady the bowl while its being turned:
In the above picture you can see how Ive cut into the next, lighter layer of birch.
Here is the bowl after about 10 minutes more turning:
You can see how the bowl is deeper and the cone is smaller. I went ahead and cut the bowl down more deeply and I thinned out the walls of the bowl:
Ive smoothed the walls of the bowl and rounded the edges of the rim--see how the mahogany turned out?
Im going to stop here for now and contemplate--should I deepen the bowl some more? If I do I run the risk of cutting into the metal screws that hold the bowl on the faceplate. This could damage my tools and leave holes in the bottom of the bowl. Deepening the bowl will increase the volume of the bowl and it will look better. So what to do-leave it or take a chance?
Come back later and find out!
VW
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The Drinking Bowl Turning the bowl pt 2

Minggu, 31 Januari 2016

Hi Everyone,
Well, I went down to the work shop and took a long look at the bowl and did a little measuring as well and it turned out that there wasnt a lot of wood left between the ends of the screw holes and the bottom of the inside of the bowl. So I turned the bottom more convex a couple of millimeters. This deepened the bowl, improved the appearance, and added a little more volume. Heres what it looked like immediately afterwards:
And I decided to stop there. Its not worth the risk of cutting into the screws and ruining the bowl. I sanded and oiled it and here it is at present:
Im going to oil over the next several days and give it a beeswax finish at the end and polish it. Ill post more photos when its done.
VW
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