Blake McCully
06-01-2006, 9:08 PM
Lee,
I got some pics of my triangle box, and another example that was just practice.
Since the three sides are each at 120 degrees, that is the angle that the outside centers need to be. I turn the blank round, the draw lines using the 14, 28 and 42 lock on my spindle lock. Extend each line around each end a bit to continue it through. Scribe a circle half the diameter of the blank and mark each intersection as a center. I number the centers to make sure I'm on the same one on each end. Another reason to do that is that you can actually turn a spiral triangle by using non consistent end centers. Not sure I explained that correctly.
You need to keep the lines on the blank as you are turning it to give you a guide as to how far you need to turn. It's surprising how little need to come off. Once you have your triangle, put the blank back onto the main center and make your cut for the top and bottom. Hollow out each as you would for any other box. When you are satisfied with the results, put them back together and return each perimeter center again to straighten things out.
I hope this makes sense. It's a lot of fun and very addictive. The box in the picture is about number 8 before I got anything reasonable.
I got some pics of my triangle box, and another example that was just practice.
Since the three sides are each at 120 degrees, that is the angle that the outside centers need to be. I turn the blank round, the draw lines using the 14, 28 and 42 lock on my spindle lock. Extend each line around each end a bit to continue it through. Scribe a circle half the diameter of the blank and mark each intersection as a center. I number the centers to make sure I'm on the same one on each end. Another reason to do that is that you can actually turn a spiral triangle by using non consistent end centers. Not sure I explained that correctly.
You need to keep the lines on the blank as you are turning it to give you a guide as to how far you need to turn. It's surprising how little need to come off. Once you have your triangle, put the blank back onto the main center and make your cut for the top and bottom. Hollow out each as you would for any other box. When you are satisfied with the results, put them back together and return each perimeter center again to straighten things out.
I hope this makes sense. It's a lot of fun and very addictive. The box in the picture is about number 8 before I got anything reasonable.