I have been wanting to play around with woodturning hollow forms. This is a form that is similar to woodturning a bowl except that the opening at the top is very small so it makes a form that is more hollow than it is open. I received a delivery of fir and maple wood a couple of years ago and I have been slowly turning that wood. I started with a piece of fir and an old hollowing tool that I had bought years and years ago that had just been sitting on the shelf waiting for me to pick it up. This attempt was successful but not as hollow as I would have liked. The opening was somewhere between what would be considered a hollow form and a bowl. I then received the new hollowing tool from Carter and Son Toolworks woodturning tools and this was a much better tool than what I had. I worked on some of the maple from the same delivery of wood and made a handful of hollow forms. After doing this, I realized that when you turn a bowl, you turn off the material with the screw holes from where the faceplate attaches when you initially wood turn the form. But when you do a hollow form, those screw holes are still there. So I was trying to think up a way to solve the problem of the screw holes that I had in my woodturning. I thought about cutting them out with the CNC machine. Then I came up with the idea of making a ring of segmented pieces and cutting that ring into the top of the hollow forms with the CNC. This would make a new smaller opening for the hollow form and cover up the holes left by the screws from the faceplate. This worked really nicely and it makes a beautiful collar for the hole for the hollow form. I really like this technique. I now have two maple hollow forms with walnut collars or frames around the opening of the form.
Avid CNC https://www.avidcnc.com/creator
Carter and Son Toolworks https://carterandsontoolworks.com/
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0:00 (introduction) 0:37 (first form) 2:07 (maple form 1) 9:06 (maple form 2) 17:49 (conclusion)