• January Turning Challenge: Thin-Stemmed Something! (click here for details)
  • Conversations are now Direct Messages (click here for details)
  • Congratulations to Gabriel Hoff for "Spalted Beech Round Bottom Box" being selected as Turning of the Week for January 6, 2024 (click here for details)
  • Welcome new registering member. Your username must be your real First and Last name (for example: John Doe). "Screen names" and "handles" are not allowed and your registration will be deleted if you don't use your real name. Also, do not use all caps nor all lower case.

Gouges, scrapers, Easy Roughers, OH MY!!!

Joined
Aug 14, 2007
Messages
5,829
Likes
3,120
Location
Eugene, OR
I am at a bit of a loss here about all the fuss on the Tool Review thread, on just about all opinions.

First, I never understood what all the fuss about the "New" tool, the Easy Rougher was. It is not origional in any way other than the carbide tip. There is a tool here in Oregon that is only home made and has been around for ever. It is called the Big Ugly Tool. It is a scraper. You get a piece of 3/4 inch square stock about 30 inches long, and silver solder a piece of 7/8 wide by about 2 inches long tantung steel (I don't really know the specs about the steel, similar to carbide, but you can sharpen it on standard grinders) on both ends. You wear a heavy leather glove on your left hand to protect it from the sharp cutter. It was used by the coastal Myrtle wood turners here. You would sharped the tool on both ends at the beginning of the day. You use one end for half the day, and the other end for the other half of the day. If you haven't turned much Myrtle, it is rather abrasive on your cutting tools. The Big Ugly was used for roughing and finish cuts.

Personally, I use scrapers for roughing, and a lot of times for finish cuts. If you are looking to rough out as fast as possible, there are several deciding factors. One is how much horse power/torque do you have? Two is how much steel can you put to the wood? Three is how hard are you going to push. And 4 is how fast are you going to turn.

I have a Robust, so torque is never a problem. As to how much steel I can apply to the wood, well, a 3/4 inch scraper doesn't slow it down a bit until I get to the 18 inch bowls, but in the low speed/high torque range, it doesn't slow it down too much. A 10 inch bowl won't slow a 1 1/2 inch wide scraper down in the medium speed range at 1800 rpm (note, I am a production turner, and don't recomend this speed to anyone). With gouges, a conventional gouge (Stewart Batty/Mike Manohey type) only has about 1/2 to 3/4 inch of steel to put into the wood. A swept back grind has about an inch or more of steel you can sink into the wood. With the gouges, when roughing, you have the gouge on its side, so the wings are actually doing a scraping cut, while you can say that the nose is at more of a shear angle. The only real difference here is that a roughing cut with a scraper tends to send the chips up over the top of my hand rather than across the top of it like a gouge does. They all get the job done.

For roughing cuts, you always start slowly to take off all the high and lows before starting to really hog off the wood. It doesn't make any difference in which tool you use. You don't just stick any tool into the wood spinning at high speed unless you want to risk life, limb, and tools. At this stage, you can easily get into trouble by trying to take off more than you and your tool can chew. Bigger steel surfaces (tools) will grab more wood than smaller surfaces (tools). You gently feel out the surface on the first pass or two, then work more on the rougher sections, then when the blank is more round and balanced, you crank it up and watch the shavings fly. If you are putting more steel on the wood, this makes for more force on the handle. You need to keep the tool rest close. This (how much overhang you can get away with) is a limit that we probably all have experimented with and need to know. Equally important is what size of tool works best for you. This roughing is a bigger job if you are using chainsawn blanks, and a lesser job if you have a big bandsaw to get things really nice before you start, but still, the same principles. No one tool is more prone to catching than any other when properly applied. I could argue about a skew chisel, but the 'properly applied' part always comes up.

Finish cuts. Gouges and scrapers can both do just an equally fine job. It is the same steel, sharpened on the same grinder. You can hone them all as well. The only difference is in how you apply the tool. A scraping cut, done with either a gouge or scraper, won't give as fine of a finish cut in flat grain because it tends to pull. End grain is another story. A shear cut does a cleaner job because it is more of a slicing action. You can shear cut with all tools. With a scraper, some times you use a burr, some times you hone the burr off. Again, the same steel. You really can't 'shear scrape', You can shear cut and scrape cut. You really don't do both at the same time. The only real difference is if your tool is sharp or not. Maybe to some extent, who is weilding the tools of mass destruction can make a difference as well. I have seen very delicate light house spindles finish turned with the big ugly tool. As fine as any skew chisel can do. Any tool in the hands of a master.....

I have been using scrapers as my tool of choice for roughing my bowls for a couple of years now. They work better for me, and feel better in my hands for this type of work. After 11 years of turning, I still haven't done anything to the extent that I do it the same way every time. If I see some one doing some thing differently than I do, I will try it to see if I can find out what they do that I don't, and to find out what I can learn for them.

Will I ever get an Easy Rougher? Probably, just to see what it is like. Do I think it is really any different from my other tools? Compared to the Big Ugly, not really. Is it really 'easier' to use? Probably not, a 3/4 inch wide scraper is not a really agressive tool, and with leverage (don't let it hang too far off the tool rest), can over come a lot of mistakes that you wouldn't get away with on a bigger scraper. I don't like the idea of throw away cutters. My grinding wheels (CBN) will sharpen carbide though, so from that perspective, it might be worth the investigation.

All of God's children are different, some of us are more different than others. Author unknown to me.

robo hippy
 
Of course I use the big gouges and cut to rough rather than scrape. Couple of valid reasons. First, I learned on low-power lathes, and cutting takes much less force than scraping, making things easier on my elbow and the machine. Second, I use smooth jaw holds, and cutting is much less likely to dismount the piece.

I'm sure I'm not the only guy who sees the connection between the Bedan scraping the bottom and the youtube easy rougher video. Scrapers have been around forever, they just haven't been in regular use on wood. Same applies to the guttered carbide types like the Hunter. They've been used in metal machining for a long time. Some of us played with them on our Stewart tool as hollowers and found them pretty neat. If I were doing hollow forms, I'd strap 'em on again.

I learned a long time ago that no amount of money spent on new tools was going to improve my turning. So I concentrated on what I knew, carving with the work in motion, and used the money from product for silly stuff like tuition and books rather than the latest alloy or famous name tool.

The new guys can try out all those angles and grinds (turning by the numbers), alloys and inserts. They have plenty of time to learn the tool as they learn turning. Old guys like me tend to think it's a waste of time reinventing the wheel. It has to be a radically new product to pull us away from what we know. None of the above are radically different from the tools of the past.
 
.... It is not origional in any way other than the carbide tip. There is a tool here in Oregon that is only home made and has been around for ever. It is called the Big Ugly Tool....It was used by the coastal Myrtle wood turners here.....

robo hippy

When I was down your way last month I met one of the Myrtle turners, he had a good laugh about the Easy Rougher, since he had been using a Big Ugly for years.

He also wondered why some turners say "you have to use a bowl gouge", when the scraper works so well for him.

I pointed out it's mostly what you are used to. A production turner, will work out the method that works the best for themselves. That method probably will not be the same for any three production turners.

At the Portland AAW I ended up having lunch with a couple of production turners. I made the remark that I had to leave for Alan Lacer's skew rotation as I wanted to learn to be better with that tool.

One of them asked me why, I pointed out that as a hobbyest I had the time to invest in learning technique that would not increase my productivity. I could learn a something just to know it.

TTFN
Ralph
 
All of God's children are different, some of us are more different than others. Author unknown to me.

robo hippy

Robo,

Thank you for this post. Based on my roughly 10 years of turning, I think you have reflected something that I have begun to feel about turning. I find my self returning to forms that I first investigated when I started turning. But now, I use all that knowledge that I have acquired through training, symposia, and the information exchange in forums like this. Yes, we do things differently. However, it is great to be aware of the options available to produce the piece you have in mind. Personally, I like to focus on techniques that seem to be more 'wood friendly' to me (doesn't have to be that way for other turners - they might also think that other techniques are more 'wood friendly.' So, let's talk!). So, we all make choices based on what we have learned and the wood species that are available to each of us.

Thanks for keeping the dialogue going.

Matt
 
I pointed out that as a hobbyest I had the time to invest in learning technique that would not increase my productivity. I could learn a something just to know it.

TTFN
Ralph

Ralph, thats been my position since day one. This hobby has never been pursued from a productive perspective, I turn what I want when I feel like it. If I happen to sell something along the way, or make some $ teaching that goes into the tool/mad money fund. I just don't see me buying that tool, to me it does nothing a regular scraper wouldn't do.
 
There are many ways to remove wood.
Whatever works for you is fine with me.

I try to steer beginners away from the tool of the month and toward the side ground bowl gouge and spindle gouge. In most cases these tools are more fun to use, remove wood faster, leave a better surface, and make better curves.

If a person can learn to use a bowl gouge and spindle gouge they can turn virtually any open form and the outside of any closed form. I have taught kids 8 to 88 to use the spindle gouge and kids 14-88 to use the bowl gouge.

There are occasional individuals with physical limitations who cannot roll a gouge or swing it through the bowl from rim to bottom. These folks have to use other tools or not turn bowls.

Scrapers have their place too. I have never seen anyone using a scraper to rough that looked like fun to me. Some folks get quite beat up hanging onto the a scraper. A scraper used to achieve a finished surface like Al Stirt does is very easy on the body.

A bowl gouge properly used in roughing all the forces are absorbed by the tool rest. This is true for a scraper only when the tool rest is very close to the work which is only possible on strait walled bowl.

I think turning should be fun. Watching beginning students fill the air with streams of chips is fun for me!

Have fun,
Al
 
Al,
If that has been your experience with scrapers on bowls, then I can show you some tricks. Too bad we are on opposite corners of the country.
robo hippy
 
dvd

Reed, i heard a rumor that you were making a dvd of 5 minute bowl with scraper out of green madrone??? any timeframe on this???? 😀

there is a bunch of free mesquite in San Antonio right now, a 5 minute bowl in mesquite compared to 5 minute madrone bowl that warps as you discuss you technique might be fun
 
Last edited:
opps

bump.... Gene, opps, i mean Reed
 
Robo,

I would like to see your technique sometime.

My usual bowl roughing cut on the outside is a modified pulling cut using a side ground 1/2" gouge with no bevel riding and lathe running as fast as it will go without excess vibration. It isn't quite scraping as the wing of the tool is sort of slicing into the wood. This cut It just rips off the wood in 1/2" to 3/4" wide shavings.

with that much wood coming off there are lots of torn fibers so switching to a bevel riding cut to take off the last 1/4 of wood is real important for a nice surface.

-Al
 
Al,
I know that cut, I used it for a long time. I had the handle of the gouge level, and the flutes at 90 degrees. I consider this a scraping cut because of the orientation of the cutting edge to the wood, and the spin direction. If the handle is dropped, then it would be more of a shear cut. Still, when roughing, I don't worry about torn fibers. I am getting waste out of the way, and as I get closer to final form, I ease up on the pressure, which yeilds less torn fiber, and then finish shear cuts with either gouge or scraper. I am planning a bowl turning DVD some time in the year or so, and will show it in that. I do need to do a You Tube short video on my bowl turning.

I do remember once a thread about cuts. One turner stated that there are 2 cuts, one riding the bevel, and the other not riding the bevel. My perspective is that there are 2 cuts as well, one a scraping cut, and the other a shear/angled cut. I don't know if I could do a scraping cut while riding the bevel, but I can shear cut both ways.

The Madrone would be a lot faster than the Mesquite, primarily because it is more wet, and not hard till it gets dry. I have only had a few small pieces of mesquite, but would think that it would be similar to Osage, Black Locust, but not nearly as hard as Mountain Mahogany.

robo hippy
 
Robo
this is not the horizontal scrape
the cut I'm not describing well has the handle dropped the flute rolled about 45 degrees you push down on the Handel, pull with the forward hand, roll the hips and use the tool rest as the fulcrum. cutting from foot to rim (tailstock to head stock)


It rips off the wood and forms the curve quite nicely.

It is a little bit similar to the "back cut" Jimmy Clewes describes but in a more agressive fashion.
-Al
 
Back
Top