I had such great ideas for this swap. BTW if you have not joined a swap, you should – it will push your limits and you will learn a lot. First idea was a low rim open segment bowl with the openings filled with epoxy. Seemed like a good idea at the time. I didn’t do something right and it literally blew up. Good thing I had a jacket and face shield on. (I should show a picture, but it was too embarrassing, and I didn’t take one) After that disaster I made a small Movingui Salt bowl just to be sure I’d have something to ship if my next invention failed. Shown here in the hand of my recipient JD77 because I didn’t get a picture of it myself.
I had a couple of 3.5” x 3.5” Osage Orange chunks too small for much of anything but I figure if I spaced them and filled the gap with a metallic epoxy I’d have something interesting. Sealed the two pieces, mixed the epoxy and poured, waited a couple days and finally got it out of the “mold.” I glued a piece to the bottom to fit my chuck and started turning. Dang, chips and chunks of epoxy were flying off and hitting my face shield like rain. I did learn to lighten my cut and finally got it round (mostly).
After all the chips and chunks (I thought) I got the diameter down in what I intended to be a graceful curve. Hmmm… more chips and catches. Eventually I ended up with and kind of Bombay curve mostly because I was afraid of shattering the whole thing.
Finally finished the outside and tried to turn the inside. After a couple attempts I decided to just drill it our with a Forstner bit. Boy was that slow going. Cutting the end grain was tough. The bit would heat and gum up and the wood would toast. I spent almost as much time cooling and cleaning the bit as I did drilling. Here, I’m using a tool from another swap to gauge depth.
Finally made it to depth and wanted to thin the lip. Another bad idea – the whole sequence went MUCH better in my head, but caught an edge, flipped it off the lathe and onto the floor which chipped it.
Result? I had to trim off 3/8”. I finally knocked off the sacrificial piece on the bottom that allowed me to chuck the part.
With saw, file, and sandpaper I managed to get the lip where I wanted. Then I mixed a very thin epoxy to coat the inside and lip. That went VERY well and I did a second coat. The result is an OK (I think) Beer”Glass” that holds 8oz exactly and only by shear chance.
I think overall I learned a ton but I need to capitalize on techniques in the coming months.
-- Bill - Rochester MI
6 comments so far
Dave Polaschek
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10487 posts in 2074 days
#1 posted 03-08-2022 07:58 PM
For me, the projects that give me the most trouble are always the ones where I learn a bunch of things that make the next attempt go a lot smoother. Sounds like you had a good learning experience on this one, Bill!
-- Dave - Santa Fe
Bill Berklich
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1344 posts in 1880 days
#2 posted 03-08-2022 08:20 PM
Dave you are right! And while frustrating it was fun and I need to try it again soon. I saw in one of the Bowling posts that Epoxy dulls HSS. So that might have been part of my problem.
-- Bill - Rochester MI
JD77
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181 posts in 1181 days
#3 posted 03-08-2022 08:51 PM
Is that a “Hairy” touchmark on that tool? He was my very first victim of a swap, back in 2019 maybe.
I’ll try the mug out tonight and let you know for sure, but it looks like it will hold up just fine.
Bill Berklich
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1344 posts in 1880 days
#4 posted 03-08-2022 09:02 PM
LOL… why yes it is! And the mug comes with a 20/20 guarantee. 20 feet or 20 seconds and sad to say you’ve exceeded both ;-)
-- Bill - Rochester MI
Dave Polaschek
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10487 posts in 2074 days
#5 posted 03-08-2022 09:03 PM
Yeah, epoxy dulls HSS real fast. Either use carbide or do a lot of sharpening. Also, shear-scraping is your friend. I was getting thin ribbons of epoxy coming off when I got it right, and that was pretty cool.
-- Dave - Santa Fe
duckmilk
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5203 posts in 2816 days
#6 posted 03-09-2022 06:28 PM
Happy to hear the beer glass survived, it looks awesome Bill, as well as the bowl.
-- "Duck and Bob would be out doin some farming with funny hats on." chrisstef
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