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Should I regrind my gouge?

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Forum topic by Rick Bailey posted 01-30-2015 02:49 AM 1507 views 1 time favorited 19 replies Add to Favorites Watch
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Rick Bailey

247 posts in 828 days


01-30-2015 02:49 AM

I got a new set of bowl gouges.
http://www.amazon.com/Hurricane-Turning-Tools-Woodturning-Inches/dp/B008DH8ZM2/ref=sr11?s=hi&ie=UTF8&qid=1422584853&sr=1-1

Should I regrind to a Irish grind?
I was getting a lot of catches doing the inside of the bowl.

-- I'll bulid your dream,you tear it down.


19 replies so far

View LeeMills's profile

LeeMills

271 posts in 767 days


#1 posted 01-30-2015 03:32 AM

I would. I am not good enough to use that grind but some of the pros can.
Most tools have to be reground to what you want. I did not remember my Hurricanes being that straight but they may have been. You would have to grind away a lot of steel length to get back to it if it came swept back. You can grind those wings backs and still not lose any steel length.
My wings are not identical but about the same as John Lucas shows in his video. Cuts are made off the tip removing only 1/8” – 1/4” width shaving. If you get too much wing into it you can also get a bad catch.
https://www.youtube.com/watch?v=M9G16ylEZHQ

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

View Troy Cleckler 's profile

Troy Cleckler

384 posts in 837 days


#2 posted 01-30-2015 05:00 AM

I don’t see anything wrong with the grind. Are you using it like you got it or did you sharpen it? New from the factory isn’t ready to use at the lathe. Keep the angle and shape and give it a good sharpening. Keep the rest close to the work and ride the bevel. And with the bowl gouge you are cutting from the rim to the center, right?

-- Troy. - Measure twice, cut once and fill the gaps....

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#3 posted 02-03-2015 02:22 AM

Up Date:
Well I did regrind my gouge and I think it came out just like the vids I watched.
So I fire up the lathe @ 500rpm- the lowest I can go- and BAMMM!
Bad catch, tore the dang thing right off the chuck.
Pucker factor? you bet.LOL

I think I need some lesson.

I put up some pic tomorrow.

Rick

-- I'll bulid your dream,you tear it down.

View bobasaurus's profile

bobasaurus

2673 posts in 2650 days


#4 posted 02-03-2015 02:36 AM

Try not to cut with the wings/sides of the gouge on the inside of the bowl, focus on the bottom of the gouge and get good bevel support beneath each cut. It’s easy to get a catch otherwise.

-- Allen, Colorado

View LeeMills's profile

LeeMills

271 posts in 767 days


#5 posted 02-03-2015 03:27 AM

Here are links to a couple of videos on catches.
The one by Brenden is two parts.. only the 1st part is linked but you can find the other (probably at the side).
The second is by Richard Raffan and the bowl gouge starts about half way through.

https://www.youtube.com/watch?v=xBNAkRe9bxw
https://www.youtube.com/watch?v=jOvF5f1phhY

As Allen said, you should be cutting just off the tip, maybe 1/8” wide. I sometimes cut up to 1/4” but after several years I would not even try like some of the pro up to 1/2”. Even with the pros shown here many of the shavings are not much wider than a pencil lead.
Too much wing in the wood is certain to get a catch.
You can use the wing but in a scraping or sheer scraping mode on the exterior but not making a slicing cut.

Looks like you are making good progress.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#6 posted 02-03-2015 03:33 AM

Thanks bob and Lee,
I will check the links out and see if I can get my head around this.
I’ve got a lot of sticktoitness.
Is that a word?

-- I'll bulid your dream,you tear it down.

View Les Casteel's profile

Les Casteel

159 posts in 2525 days


#7 posted 02-03-2015 04:16 AM

You need to have another gouge ground in the “bottom feeder” configuration. The curve at the bottom requires it. That I’m pretty sure is where your catch occurred? Do that and you’ll find it both speeds up your turning and improves the bottom area without catching.

-- Les, Arkansas, www.woodthatrocks.com

View LeeMills's profile

LeeMills

271 posts in 767 days


#8 posted 02-03-2015 05:14 AM

If unfamiliar with the term, here is an article by Dale Nish (1 page) on why you may have different bowl gouge grinds (the steepness of the angle, not necessarily swept back or not).
The figure 4 shows what Les is referring to by a “bottom feeder” and why it may be needed.

http://www.woodturningdesign.com/askdale/14/14.shtml

As steep as the sides of the bowl appear to be, I would go after the transition area lightly with a sharp scraper. But that’s just mho.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#9 posted 02-04-2015 02:14 AM

Ok,
This is what I did.

So lay it on me guys.
Thanks,
Rick

-- I'll bulid your dream,you tear it down.

View waho6o9's profile

waho6o9

7176 posts in 2042 days


#10 posted 02-04-2015 03:01 AM

Now that looks like a bowl gouge, good job!

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#11 posted 02-04-2015 03:07 AM



Now that looks like a bowl gouge, good job!

- waho6o9

Thanks waho6o9,
Now I just need to learn how to use it.LOL
Oh well baby steps.

-- I'll bulid your dream,you tear it down.

View LeeMills's profile

LeeMills

271 posts in 767 days


#12 posted 02-04-2015 04:31 AM

The first two pic look really nice. It may be the pic angle but in the last two the point appears very blunt. f you look back at the first little video early on (John Lucas) you can see what I mean. They may be more rounded than the pic looks like. You can leave as it and on future sharpenings just remove a tiny bit more toward the tip each time. It seems to work for you as is.

On the other hand your tenon seems to have 2-3 serious problems IMHO. If interested start a new thread so this one does not get so far off the original topic.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

View kwolfe's profile

kwolfe

108 posts in 1030 days


#13 posted 02-04-2015 11:49 AM

Is that where the catch happened on the bottom of the bowl? Looks like one of those spiral rings spins outward. The new grind looks good.

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#14 posted 02-05-2015 03:20 AM



The first two pic look really nice. It may be the pic angle but in the last two the point appears very blunt. f you look back at the first little video early on (John Lucas) you can see what I mean. They may be more rounded than the pic looks like. You can leave as it and on future sharpenings just remove a tiny bit more toward the tip each time. It seems to work for you as is.

On the other hand your tenon seems to have 2-3 serious problems IMHO. If interested start a new thread so this one does not get so far off the original topic.

- LeeMills


Lee,
Please tell me the problems you see,I want to know.
How do I move all of this stuff to a new thread?
Thanks again,

-- I'll bulid your dream,you tear it down.

View Rick Bailey's profile

Rick Bailey

247 posts in 828 days


#15 posted 02-05-2015 03:23 AM



Is that where the catch happened on the bottom of the bowl? Looks like one of those spiral rings spins outward. The new grind looks good.

- kwolfe


kwolfe,
You got a good eye, that’s just happen.
I think I’m doing things bassackwoords.

-- I'll bulid your dream,you tear it down.

showing 1 through 15 of 19 replies

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