Re: My process, long winded reply
Doug Leite
>Aloha, Steve
I have been a machinist for almost 40 years, so precise is in my blood. I am glad that you like it. I actually enjoyed the task.
After designing the piece and printing my cut sheet, I cut all of the pieces including the feature ring. I then glued every ring together, and flattened each ring as I started gluing them together. I worked in sets of 3 rings, beginning with the base. I glued the 3 lower rings together, then mounted it on the lathe with the bottom facing out. I turned the shape and then mounted it onto a thick wasteblock mounted on a faceplate. To make everything run true, I turned a small shoulder on the wasteblock to fit into the recess on the bottom piece. When dry, I turned & sanded the top surface of ring #3 flat. Next, I glued the next 3 rings on, turned & sanded true and so on. When I got to the widest part,I finished turning and sanding the whole section to 3/16" thickness. Please note that I also simultaneously started working from the top down in a similar fashion. I also started on a third portion that started at about the portion of the "spherical" piece that reverses direction. I was now gluing/turning/sanding 3 different sections.When the lower part reached this stage, I finished turning all 3 sections and sanded the insides. Let me not forget to mention that a 1/64" deep recess and step was turned on the mating surfaces to provide a true register. Then it was time to assemble and glue all 3 pieces together. The whole assembly just barely fit under the spindle of my floor model drill press, as that is what I used to clamp all sections together. When the glue was cured, I mounted it on the lathe and blended in the outside joint areas and finished sanding the outside.I then removed the wasteblock & faceplate from the top end. Now,I reached in as far as I could and blended in the joints on the inside. Next I buffed the whole thing and applied many coats of Danish Oil. Turned it end for end, driven by my vacuum chuck and supported by 2 steadyrests and removed the lower wasteblock, and dressed up and finished the base.
I hope that this was clear enough, if not, I am open to questions. I will find and post pics of the seperate 3 pieces, if you wanr me to.
Mahalo,
Doug