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Third cholla bowl #6: Shaping and filling

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Blog entry by Dave Polaschek posted 05-15-2022 04:39 PM 652 reads 0 times favorited 16 comments Add to Favorites Watch
« Part 5: Roughing it out Part 6 of Third cholla bowl series no next part

I finally got back in the shop after a crazy week. On Saturday I shaped the outside of the bowl and filled a few holes, then Sunday I smoothed that out and finished it, then chucked the base of the bowl and started shaping the inside.

That’s the outside pretty good. Let’s get to the inside.

First I have to cut off the pine “base.”

Then clean up.

Once I get pretty close to the final shape, I pull the bowl from the lathe, leaving it on the chuck, and fill and gaps in the epoxy.

For this filling I use a 12 hour epoxy, which takes about a half-hour to get thick enough that it’ll most stay in place. But it flows better so I don’t end up with bubbles just under the surface. The down-side is that I need to spend about 45 minutes watching the bowl and turning it this way and that so that all the holes on the inside get mostly filled.

It won’t be perfect tomorrow, but I should be able to fill things more completely then with a faster-setting epoxy, and get the bowl back on the lathe on Thursday or Friday.

-- Dave - Santa Fe



16 comments so far

View Jim Jakosh's profile

Jim Jakosh

27794 posts in 4595 days


#1 posted 05-15-2022 05:51 PM

Good progress Dave. What brand of epoxy is 12 hour?

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#2 posted 05-15-2022 07:16 PM

Thanks, Jim! Stone Coat Countertop epoxy is what I used, Jim. Its not my favorite, but the longer time and better flow is handy when filling voids. I originally bought it for coating the inside of a coffee cup, because its also heat-resistant.

-- Dave - Santa Fe

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#3 posted 05-15-2022 09:19 PM

Four hours after applying it, I went back and re-filled some of the holes. The epoxy was the consistency of caulk, which made spreading it with a popsicle stick feel kinda like frosting a cake.

-- Dave - Santa Fe

View Oldtool's profile

Oldtool

3537 posts in 3680 days


#4 posted 05-15-2022 10:31 PM

I think I kinda like the first couple of cholla bowls more, with the orientation of the pieces such that they form more symmetrical patterns, the rings & ovals of end grain.
What’s your thoughts Dave?

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#5 posted 05-15-2022 10:47 PM

I think I agree, Tom. But I wanted to give this orientation a try. I think this orientation could’ve worked better, but it’s hard to get as dense of a packing of the cholla pieces in this orientation, and the bigger gaps don’t help. But the epoxy colors should make it interesting…

I think I’m also going to try one where I use a pair of dollar-store bowls as inner and outer molds, sandwiching a layer of cholla between them. But I’ve got two other projects that have to come first.

-- Dave - Santa Fe

View Eric's profile

Eric

5688 posts in 1363 days


#6 posted 05-16-2022 01:45 AM

Moving alone there Dave, taking some shape on. It has a random pattern, I would have to agree with OldTool, the first ones are nicer with more of a pattern. Still want to see the finished product, and that option may change.

-- Eric, building the dream

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#7 posted 05-16-2022 02:17 AM

Yeah, Eric. It doesn’t excite me either, but maybe when I get it a little thinner so the colors really pop, my opinion will change. Or maybe not. I figure I learned a few things anyhow, and this is the first thing I’ve ever turned with carbide tools, so that’s something, too.

-- Dave - Santa Fe

View Eric's profile

Eric

5688 posts in 1363 days


#8 posted 05-16-2022 02:21 AM

Overall a good learning process for you then.

I have used both HSS and some Carbides in my turnings, not sure which ones I like better. The HSS is what I am used to using. Gettingbbetter at keeping them sharp, I think.

-- Eric, building the dream

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#9 posted 05-16-2022 02:37 AM

Yeah. Turning epoxy dulls HSS pretty fast, and then the epoxy starts chipping, so the carbides have been nice for that. I think I prefer HSS overall, but I figured I should get a few carbide ones if I’m going to keep playing with epoxy.

-- Dave - Santa Fe

View pottz's profile

pottz

26521 posts in 2474 days


#10 posted 05-16-2022 03:15 AM

lookin damn bud.yeah im still here !

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View pottz's profile

pottz

26521 posts in 2474 days


#11 posted 05-16-2022 03:19 AM



Yeah. Turning epoxy dulls HSS pretty fast, and then the epoxy starts chipping, so the carbides have been nice for that. I think I prefer HSS overall, but I figured I should get a few carbide ones if I’m going to keep playing with epoxy.

- Dave Polaschek


im a huge fan of carbide,i know real turners use hss.but hey it works quite well for me.and as ive said many times,i hate sharpening. id rather be turning than wasting valuable time sharpening tools.i just dont get the beef with carbide.it’s all a plus for me ? maybe people just dont know how to use it ?

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#12 posted 05-16-2022 12:16 PM

For me, I worried that if I started with carbide, I would never bother learning to use HSS. And with HSS I can (and do) make my own tools, so it was something of a no-brainer. And when its sharp and I’m doing my job, the finish from HSS tools is often good enough with no sanding, avoiding dust in the air.

-- Dave - Santa Fe

View doubleDD's profile

doubleDD

11371 posts in 3533 days


#13 posted 05-16-2022 12:26 PM

Starting to look like a bowl now. Once you get a sheen on there you will be able to see better results. I was using 5 minute and 15 minute epoxy for filling gaps and chips but the price is getting out of hand.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View Dave Polaschek's profile

Dave Polaschek

10473 posts in 2072 days


#14 posted 05-16-2022 01:40 PM

Thanks, Dave. Yeah, it’s getting there. The 12-hour epoxy is still tacky to the touch this morning, so I won’t be doing much with the bowl today, but I can maybe fill the last few holes with the 5-minute stuff, so it’ll all be ready to go tomorrow

Yeah, the costs are going up, like everything, but this is one of the times when my sweetie thinks I’m smart. “Oh, buying a gallon at a time was a good idea, since the price has doubled!”

-- Dave - Santa Fe

View adot45's profile

adot45

692 posts in 2114 days


#15 posted 05-16-2022 09:20 PM

Can’t wait to see this one finished Dave. So different shape wise than your others.

-- Bowl Blog. https://www.lumberjocks.com/adot45/blog/133591

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