As a juried wood turner I often have opinions about the art and craft of lathe work. Here I intend from time to time to give my opinions regarding our craft of wood turning along with discussions of woodturning tools, lathes, sharpening and the like as well as entertaining other ideas from turners, artisans and interested parties.
Showing posts with label natural edged bowl. Show all posts
Showing posts with label natural edged bowl. Show all posts
I have managed to get a video up on YouTube regarding remounting the natural edged bowl, preparatory to finish turning. This one illustrates well the use of a hot glue block.
There have been some questions raised as to the use of hot glue with a glue block.
it is the same glue the crafters use. I have used heavy duty but find it no better.
make sure the gun is hot
the wood surfaces need to be reasonably flat or very slightly concave
the surfaces need to be dry
These are just the precautions you would use with any glue block. However, with hot glue there is no real need to clamp and you can turn right away.
Ta Dah! this is the 100th entry on the blog. Applause please. Now that we have that over, I have managed to get another video up on YouTube dealing with the natureal edged bowl. This is the fun part, roughing the inside. This is also the quickest part, especially here with so much air to turn. Air turns fast. Duh! As always, comments are appreciated.
For me, one of the things that keeps me coming back to the lathe is the everlasting hunt for the elusive curve. Every piece turned could be a little different with a subtle change in the curve of the bowl.
Here I have the fun of hunting in a spot where the curve changes dramatically as the bowl rotates. The line of the end will disappear around the side because the wood is simply not there. So the quest becomes a search for a curve that exists in different configurations at different spots. An ogee at one spot becomes a simple curve at another because half the figure is gone.
This is simply fun. The other side of all this is the wood is cheap to use. As I recall the pin cherry for this turning came from a tree that was too close to Dad's shed and was dying from black knot so it had to come down. Once I got it down, it was too good to toss so here it is.
One of the more difficult things for a wood turner to learn is where to watch the lines form for a turning. Most of the time we like to look at the tool edge to see where the action is and likely to watch out for a catch.
One of the problems with this is the tendency to over compensate for a cut that is not quite right and make the wrong move with the tool. This produces a dig that needs to be cleared up and produces more work than necessary. What is desired is to be able to see the lines of the piece develop and to make small adjustments in the line of the result. An artist on paper would tell you not to look at the pencil tip but rather at the line.
So a wood turner needs to look away from the tool and seek instead to watch the line of the developing piece. This would then appear somewhat as in the accompanying video. The tool is not seen, just the "ghost" of the piece. This is quite dramatic in this instance as determined by the shape of the piece.
In a very real sense, this is drawing in three dimensions. The only thing is, once a line is in place, it can not be erased except to make the piece smaller. It also leads to a style of turning similar to the broad styles of sketching.
Some artists sketch with a bold line from the top of the subject to the bottom. Others work in short lines. Generally both refine after the main idea in in place and perhaps ink and color as well. Similarly, some wood turners make broad and long cuts down the side of a vessel while others nibble away in small sections and blend it in later. Most of us combine the two.
In a case like this I seldom have a final idea of the shape of the piece except in general terms. This is after all, a bowl and not a vase. However, there may be undercuts or ogee curves or opportunity for carving or piercing or the like as the piece progresses. This is simply the fun of the turning.
One of the things, if not the thing that makes turning these natural edged bowls fun is simply the amount of air in the mix. That is especially true for one like this that is longer than it is wide. Of course this brings up complications. For one thing, there is really not firm bevel to ride. You depend on the speed of the wood to make up for the gaps and just go for it. As the video goes on you can see the difference in tool movement as I go from the sides with gaps to the bottom with solid wood. The other thing is the difficulty in viewing the bowl. There is so much air that it can be hard to see the wood once it starts turning. I am turning here at 1200 rpm. You need a decent speed to contend with the huge gaps. If you are not comfortable turning a bowl at that speed, just practice on a few regular ones first.
I have been playing with a video of turning a natural edged bowl. These are always fun to turn because so much of the turning is really air, not wood. For this one I am using a piece of pin cherry of which I have a lot. I tried to keep the bark on but did not make it this time. It is sort of a crap shoot to keep the bark, depending on when the tree was cut and how long it has been down and likely whether you hold your nose just right. Anyhow, I will put sections up on YouTube and eventually have the whole thing available for download. Hope you enjoy it and as usual any comments and critiques are welcome.
