Speaking about the ring...
(If you don't want to read the rambling skip down to LONG STORY SHORT)
Just a little background:
I am a break it first learn from that mistake kind of learner.
AND
I pretty much stick to my apple, brandy, and billiard shapes.
So my problem with Bulldog/Rhodesian have been the rings and a little issue on shaping the angle of the bowl just the way I want (but that's just going to be practice). I guess I can just not do the rings, but I like the challenge and I finally have figured out a
decent way to turn my rings. I still say a prayer before I cut the rings because I am a little scared, and just would like to hear how you guys are doing it. There is always a different way that might feel better for your style.
RAMBLING:
I have had ROTTEN luck with my 5 attempts. The first two I tried on my mini taig lathe with some new tools (this was the first time I have tried to turn the stummel on the taig and I just to see what would happen). This was a slight disaster.
Thankfully I can salvage those two, but they are almost not worth it (at least for the PITH). The taig was good for cutting those rings and getting the angles. All it means is I am going to save up more quickly for my PM Lathe
I am much more comfortable with my wood lathe, so I switched back over to that. I pretty much have a process down to get a great result in getting the holes drilled and squared. I use the taig for my stem work.
BUT the problem I have on the wood lathe is cutting these rings and it is either due to a lack of a steady hand or a lack of intelligence. I am turning on the wood lathe alternating speeds between 1000-1700 rpm and I am using a diamond carbide insert in order to cut the ring.
The first attempt on the wood lathe was an absolute botch. After shaping the bowl, I just went straight in to cut the rings (heavy handed OF COURSE) and that diamond bit skipped all over the place. After cutting the top of the bowl down and skipping the bit 3 more times I was left with an unusable pipe (the depth of the bowl was less than 10mm.
The second attempt, same issue, BUT I was able to get a usable pipe out of it and finally figured out the speed and pressure of cutting the ring. So this is pipe is my PITH backup. (I just think it is a lazy design and boring)
The third attempt, I got a little cocky and threw on a nice high grade, tight grain block. Turned that sucker beautifully, got my rings on without a problem, and after I drill my chamber I see a giant sandpit. I started shaping the pipe and low and behold that sandpit goes all the way through. I almost cried.
So I pulled out some more blocks and I plan to get 3-4 more in the works. I think I will not go traditional shape because I hate it. Going to go a little wild, that's what it is all about.
Also you guys posting the pictures. GOOD WORK! It has inspired me to use some of my nicer blocks for you guys. Hopefully you will be getting that creme de la creme!
LONG STORY SHORT:
Questions
1 - What are you big boys using to cut the rings on a WOOD lathe?
2 - How pertinent is the speed of the lathe when cutting the rings?
3 - How much pressure are you applying when cutting the ring? (I know this is almost impossible to answer, due to describing the pressure and everyone has a much different perspective and style on turning [relatively])
4 - Regarding shaping the bowl, any tips on getting the angle and/or how best to approach it? The issue I am having is getting the angle correct in between the shank and top of the bowl. I keep cutting the angle too severe and it looks more like a diamond than a pipe. Any tips on turning tool shape/size of bit or setting up the angle of the tool rest, etc... (I know this question is almost not a question, more so if anyone has tips on turning that bowl it would be appreciated)
Comments
1 - I square up my blocks on a table saw. In rare occasions I loose a good 1/4" - 1/2" in width, but it is usually just a loss of 1/8" in width. This method works great for the VF chuck (in my experience). I heard and have seen others square by sanding wheel or chop saw. Any other good ways? What do you guys do?
2 - KURT! That shape you posted that looks like a saucer is right up my alley. And in all honesty the top of the bowl looks easier to shape than traditional bulldog/Rhodesian shapes. A good bit of hand tool work, but that is generally what I do anyways (to me it is more relaxing, enjoyable, and ACCURATE!)