40 / 40 Grind

Рет қаралды 108,777

6 жыл бұрын

WW'nTip-of-Day #040: The 40/40 Grind
Hand Sharpening is a lot simpler than it sounds and is a great path for new woodworkers who haven't made an investment in jigs and such. Only takes a little geometry background information and a few times practice.
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Пікірлер: 141

@paulhedman7387 Жыл бұрын

Thanks, you're the first one to really show me where to measure the 40 degrees.

@timcgrew 6 жыл бұрын

Best woodworking educational channel on KZfaq. Thanks for making these videos.

@wortheffort 6 жыл бұрын

Thanks

@frankperrone1967 3 жыл бұрын

Thank you for taking he time to share your knowledge..

@kellyadamski8092 4 жыл бұрын

again, Thank you so very much for all that you do to help us new turners. I really appreciate it!

@wortheffort 4 жыл бұрын

Thanks

@freiermann7 6 жыл бұрын

Love these videos. Thanks for making them!

@wortheffort 6 жыл бұрын

Thanks

@michaelmckenney7214 3 жыл бұрын

Thanks for taking the mystery out of the sharpening of the bowl gouge. Great job

@joefernandes1359 Жыл бұрын

Excellent. Absolutely very well explained.

@billy19461 6 жыл бұрын

Thank you so much! This is the first video that actually explains how to sharpen.

@wortheffort 6 жыл бұрын

Look for Stuart Batty video's. He covers sharpening in just about all of them.

@stanmatej35 2 жыл бұрын

good stuff, simple is always best! easy to understand and hear. thks. enjoyed your zest for woodturning and teaching.

@michaelgryder2204 6 жыл бұрын

Thanks for the short videos I really enjoy them hope you keep making them.

@wortheffort 6 жыл бұрын

Thanks

@mvred100 5 жыл бұрын

Always love your videos!

@wortheffort 5 жыл бұрын

Thanks

@zainulaariefeenjust8272 3 жыл бұрын

Thank you soooooo much.my dear lovely teacher.I look your some videos,great.your teaching style is so good.

@paulhaggett3710 5 жыл бұрын

Such excellent educational videos, I would like to shake your hand! I teach turning and have always used the traditional 40:40 grind but never thought to add a slight radius for shear scraping. Thank you for all the hard work you put in to your videos.

@wortheffort 5 жыл бұрын

Thanks

@johnfordham9791 6 жыл бұрын

Great video and reminder, for all!!! thanks for your time and skill...

@wortheffort 6 жыл бұрын

Thanks

@philrentfrow4594 4 жыл бұрын

Shawn: I picked up turning again last November. I was looking up tutorials on the Tube and ran across your channel. I have binge-watched almost every one of your videos! You are an awesome instructor.. Keep up the good work Bro !!

@wortheffort 4 жыл бұрын

Thanks

@mikebraden9756 4 жыл бұрын

Thanks for this video. Watching this while setting up my new grinder

@wortheffort 4 жыл бұрын

Thanks

@johnfogg7858 5 жыл бұрын

Thank you!!! Very helpful and nicely done!

@wortheffort 5 жыл бұрын

Thanks

@ryanevans8182 3 жыл бұрын

You’re the best teacher on KZfaq

@jerrybridges584 4 жыл бұрын

Thanks for a clear demonstration of the 40 40 grind. I plan to use the technique tomorrow on a bowl gouge.

@wortheffort 4 жыл бұрын

Go for it.

@HarmonicGrunt 2 жыл бұрын

This guy is Awesome! Thank You Sir!

@larndavies6954 6 жыл бұрын

Years of punishment my father called teaching sharpening traditional bowl gouges...you do get better but he had an eye for it I never did. Love your vids and those swedes the other day were impressive, thanks for sharing

@wortheffort 6 жыл бұрын

Thanks

@beardedwoodpecker Жыл бұрын

Great tutorial helped me a lot!!!! All the best Yiannis(Athens Greece)

@rickgrix9433 3 жыл бұрын

Dude. Thank you. This is a big help.

@redsalem7686 4 жыл бұрын

Great video, I was able to get my 40 40 grind after watching. Thanks for posting

@wortheffort 4 жыл бұрын

go make it dull

@garywakefield9830 Жыл бұрын

Thank you, so easy to follow :)

@poundkake13 6 жыл бұрын

I saw your demonstrations in Skiatook, OK. I learned then that I love the way that you teach. I've gotten a ton of knowledge from you since then. Thank you!

@wortheffort 6 жыл бұрын

Thanks

@johnbongiovanni2363 6 жыл бұрын

Man you are a wealth of knowledge, i hope someday i can learn 1/2 as much as you know about turning

@wortheffort 6 жыл бұрын

It's all perspecive. To a lifer I'm an idiot.

@busterwest1644 5 жыл бұрын

AT LAST, Finally, someone who can explain the 40 40 grind... tried to follow several videos but ended up confused, ( and I was an A maths student) got it now Thank you,,,, will be out in the shop at the weekend on the grinder....

@wortheffort 4 жыл бұрын

Thanks, get at it.

@tommydog6182 4 жыл бұрын

I have really enjoyed learning to turn on a lathe and how to sharpen the tools to do the work. You are a really good teacher. Thank you for going to the trouble to make these videos. I wish people could just take the good from your videos and keep their opinions and negativity to them selves.

@wortheffort 4 жыл бұрын

Thanks

@williamswhistlepipes 2 жыл бұрын

Good tuition 👍🏻👍🏻

@predator4151 2 жыл бұрын

Thanks men. U are great

@Sillyturner 4 жыл бұрын

I’ve been using the 40/40 grind on my bowl gouges but was having trouble with the flange angles. Thanks for showing the simple layout on your grinder angle support plate and explaining the way to proceed.

@wortheffort 4 жыл бұрын

glad it helped.

@matm4331 4 жыл бұрын

Thanks for posting this...should make life a little easier!

@wortheffort 4 жыл бұрын

Thanks

@Santamonicadrainco 6 жыл бұрын

I have the Wolverine system and love it. I’m a beginner turner and truth be told I’d stop turning if the sharpening didn’t get easy. I’ll probably give this a try. Thanks for sharing.

@wortheffort 6 жыл бұрын

That's a good system. It won't let you down and definitely adds consistency.

@karlpetersen7147 4 жыл бұрын

Very good explanation...thanks👍

@wortheffort 4 жыл бұрын

Thanks

@ronaustin7090 6 жыл бұрын

Great, it makes sense now to this hard head!

@walterrider9600 6 жыл бұрын

thank you . ah relief angles on cutting tools any type . on internal just remember to use a steeper angle . on em good luck .

@davidmoncada3124 6 жыл бұрын

Dang! I was just watching Stuart's video on this topic! Timing is everything I guess! Thanks!!

@wortheffort 6 жыл бұрын

Ya, he's got teaching this technique down.

@BradsWorkbench 3 жыл бұрын

Just tried ron browns method for the 40/40 grind and i love it. Never got such a good finish off the tool. Would eventually like to switch to free hand sharpening like this tho.

@johnbryant_ Жыл бұрын

I am just getting started and after my brand new bowl gouge was chipped (from my own misuse I'm sure) I thought I'd have to order a new one or wait until I found someone to show me how to fix it. I watched this video and gave it a try, and what do you know, I was slicing though oak like a champ. THANKS!!

@davidfrana2753 3 жыл бұрын

Good video. I think it will be a big help, thanks.

@entornopipero1984 3 жыл бұрын

el mejor video que he visto sobre como hacer este tipo de afilado, muchas gracias. ya estoy suscrito

@wortheffort 3 жыл бұрын

I don't speak French

@doycowzintexas1672 4 жыл бұрын

Thanks for the info

@wortheffort 4 жыл бұрын

You bet

@pinkenbajedi2119 3 жыл бұрын

Thank you for all of these videos, I finally got a lathe on the weekend and made some spinning tops and a small vase/cup with no previous experience, all from absorbing your channels lessons. Cheers 🤙

@jlwine7985 6 жыл бұрын

Very helpful, thanks!

@wortheffort 6 жыл бұрын

Thanks

@ajmagic111 5 жыл бұрын

i think you need to measure the 40 degree angle referencing off the top edge of the grinder platform and not the lower surface

@germainrioux945 4 жыл бұрын

VERY good video,,,keep up the good work,,,

@wortheffort 4 жыл бұрын

Thanks

@jamesmoore3346 5 жыл бұрын

Sure wish I had discovered your channel sooner. Excellant explanation on sharping. Think a couple of my gouges wouldn't be so short that I need to replace them. Sharpen alot and hace to take off too much to fix what I mess up, lol. Since I'm in forced retirement from beating (BEATING) stage 3 lung cancer I spend a lot of time in my little 12X16 wood craft shop now. 25 yrs as a scroll sawer I decided to get a small lathe and turn pieces to accent some of my scroll pieces. Long story short, the scroll saw doesn't see as much time as it used to and I just upgraded to the next size lathe last month and ordered a chuck for it this morning. Hope I get over this bronchitis by the time the chuck gets here, chomping at the bit, the yard works just gonna have to wait, LOL. Thanks a bunch for sharing your knowledge.

@wortheffort 5 жыл бұрын

Thanks. Turning is addicting.

@jamesmoore3346 5 жыл бұрын

@@wortheffort You got that right!!!!.

@STMwoodturning 3 жыл бұрын

Thanks for the simple explanation of the 40/40 grind! I'm a new turner and it really helps. Stuart

@shawncarner2406 3 жыл бұрын

As always a great teacher, easy step by step instructions

@JackRockBLC 6 жыл бұрын

Perfect timing. I just bought my first lathe a couple of weeks ago, and don't have a sharpening jig (and don't intend to, really).

@wortheffort 6 жыл бұрын

Get after it then. Make a mess.

@JackRockBLC 6 жыл бұрын

LOL - and a mess I made! I swear, I made nearly 20 POUNDS of wood shavings and sawdust, making a few bowls. I'm hooked.

@raysmith1028 5 жыл бұрын

Thanks ? don't even know your name. Excellent Tutorial. most importantly time saving = sharper chissels = more time turning = better quality.

@johnfordham8133 5 жыл бұрын

U simplify the process for many. Hope the new guys find u...

@wortheffort 5 жыл бұрын

Thanks

@diydarkmatter 3 жыл бұрын

thank you for showing this . i looked at alot of sharping videos trying to find out what you explain in this video . how ever can you use this grind for all your other gouges as well roughing and spindle gouges not skews . i sharpen my skews by hand with a diamond stone .

@wortheffort 3 жыл бұрын

Glad it was helpful

@marcelrey9533 4 жыл бұрын

Not bad, don’t have a jig yet so might try that. Thanks 👍🏼

@wortheffort 4 жыл бұрын

Thanks

@dbull46 3 жыл бұрын

Your teaching techniques come across really good 👍 Thanks for taking the time to show everyone.

@dannyharvey2957 2 жыл бұрын

you have such a good way of explaining things, makes things a lot simpler & interesting

@ianjones2335 6 жыл бұрын

Great video! Can you do a quick tip on how to hollow grind a chisel? I would really appreciate it! Thank you.

@wortheffort 6 жыл бұрын

Check out my Intro to woodworking series.

@censusgary 4 жыл бұрын

I was a little confused until I realized that, although you’re pointing at the top angle between the tool rest and the grinder wheel, the angle that’s 40 degrees is the bottom angle (under the tool rest as you look at the setup from the side). That makes the top angle 130 degrees (90 plus 40 degrees).

@wortheffort 4 жыл бұрын

it's the resultant angle on the tool people reference.

@dalecorbitt1804 6 жыл бұрын

👍

@saidrassi1 4 жыл бұрын

Nice video , very helpful. About the grinder, two concerns: whta is the rpm you use and the grid? Thanks

@wortheffort 4 жыл бұрын

It's a standard slow speed grinder (1750?), 80-120 would be fine.

@AffordBindEquipment 5 жыл бұрын

as the grinding stone gets smaller, the angle will change. FYI

@jackvideojmf 4 жыл бұрын

Awesome video! What grinding wheel do you recommend? There are soooo many choices!

@wortheffort 4 жыл бұрын

Norton Fryable. My take is they're pretty commoditized.

@jackvideojmf 4 жыл бұрын

@@wortheffort Great. Thanks for replying! I am learning a lot from your videos.

@mtmals9786 6 жыл бұрын

Just got the Hang Yan protractor via Amazon. Thanks for the 40-40 instruction. Is the 40 degree bevel optimal for skew chisels also?

@mtmals9786 6 жыл бұрын

Thanks...realized it the second after my post. Yours and several good features on the subject. Keep up the great instruction.

@gregkieser1157 2 жыл бұрын

I gave this a go today on two gouges. They cut very well, however they tend to cut uphill better which is a bit challenging if you are a leftie. Good video. Much appreciated.

@Dave-cn5sg 5 жыл бұрын

Thanks for the great videos. Can I ask what kind of bench grinder you use? Seems to run very true with no wobble.

@NeilSoulo 5 жыл бұрын

Thanks for this and your other videos; you do a great job. I'm sure that this will help a lot of people who have found tool sharpening to be quite a challenge. I must point out an error that you made when illustrating the angle of the platform on the pedestal grinder. when you drew the angle, you indicated that angle between the platform, and a line tangent to the wheel at the point of the gouge, to be 40 degrees, when it clearly is not. The angle that you indicated would be 140 degrees. You, obviously know what you are talking about, but that could be very confusing to someone who is not especially good at geometry.

@wortheffort 5 жыл бұрын

Neil Silcock you’re right. It’s the result on the gouge I was referencing.

@johnday4810 Жыл бұрын

Many thanks, great video. You had the tool rest set at about 40, the swing side to side 40, but you rotated the gouge too, I assume about 40??

@wortheffort Жыл бұрын

nope. get the grind face flat to ground.

@johnday4810 Жыл бұрын

@@wortheffort many thanks for your reply, got it now.

@robnarlothgear2915 3 жыл бұрын

What grit is the grinder wheel you were using?

@darinmarshall6548 6 жыл бұрын

What kind of grinding wheel do you use? And what grit?

@wortheffort 6 жыл бұрын

Norton, 36, 80, 120

@TheVerspagets 5 жыл бұрын

where can I find that platform for the tool rest. I like this video, I don't have the budget for the expensive wolverine etc.

@wortheffort 5 жыл бұрын

mark verspaget that is part of the wolverine system.

@TheVerspagets 5 жыл бұрын

oh, ok. Thanks for your help. So the best is saving for a Wolverine system. I need the vari grind attachment and the oneway Wolverine grinding grid. Then I'm set for bowl gauges?

@wortheffort 5 жыл бұрын

mark verspaget the whole video showed that you don’t need varigrind.

@TheVerspagets 5 жыл бұрын

Thank you very much. I'll try to find a platform for the grinder. This video helped me. Thanks

@bobbybonner8733 3 жыл бұрын

How would I go about starting from scratch with this grind if I have a different grind on my tool.

@nelsonpalmer4831 10 ай бұрын

Is the Kodiak system good, have you used it ?

@wortheffort 10 ай бұрын

Never used it

@gary313 6 жыл бұрын

It would be interesting to see you turn something with a 40/40 grind vs a regular Wolverine grind. Is it easier, faster?

@wortheffort 6 жыл бұрын

Maybe if I had two of the same gouges but, alas... $$$ It'd be a waste of a lot of steel to regrind and you'd need to do them back to back fast to get any real sensation of "feel".

@gary313 6 жыл бұрын

Understand. Have you tried both and, if so, what is the difference?

@reedfrench1649 Жыл бұрын

Do you know what the robert sorby 3/4" "Texas grind" bowl gouge is?

@wortheffort Жыл бұрын

Marketing for something you can do yourself.

@jackwagon4313 2 жыл бұрын

This vidieo simplified things... I have cbn wheels and a wolverine jig thats new and im not to confident in using this set up yet.

@gerardwebster1251 6 жыл бұрын

Great video again! Have been wanting to try that grind. You are the only one I found to have given an in depth demonstration of it. Even though you did it on a v gouge, will it still work as well on a u shape gouge? My daughter and I want to get into more bowl turning. Check out our recent lathe purchase on our Instagram page, Helger Woodcrafts. With a 40/40 grind and the new (to us), used to anyone else lathe, we can really go to town! Thanks again for your great videos.

@clydeulmer4484 6 жыл бұрын

If I may jump in here -- I attended a workshop that Stuart gave, and he told us that a U flute is problematic. First, his techniques with the 40/40 grind depend on having a small nose. This is only possible with a V flute or parabolic flute (which is his preference). Second, the geometry of a U flute makes it very difficult to avoid getting a concave wing -- a big no-no. I think you might see that if you look at the good, clear drawings in this video and pay attention to the tilts and swings presented. If you ever have a chance to see Stuart live, jump on it -- he's enormously entertaining as well as being a great teacher. Clyde

@gerardwebster1251 6 жыл бұрын

Clyde Ulmer thanks for the input

@wortheffort 6 жыл бұрын

Thanks. It's a lot harder with a U because there are an infinite number of bevels going around, no single spot is the same. With the V you really only have to worry about 3 and blending together. Though I will say, if done right (really hard) I'm told U's cut better in some situations. I don't own any U's. No sense buying something you can't sharpen consistently when their are alternatives you can.

@gerardwebster1251 6 жыл бұрын

wortheffort thanks for the response. Guess I’m now on the hunt for a v bowl gouge to try this out.

@dasquirrelisme 4 жыл бұрын

So its not possible to grind a U gouge to a 40/40?

@wortheffort 4 жыл бұрын

Anythings possible, it's just much harder. The flat interior wings of a V are much easier to freehand when learning.

@danahopkins4090 4 жыл бұрын

Ask 10 turners how to sharpen the tools, and you'll get 12 answers and a fistfight.

@wortheffort 4 жыл бұрын

never fight a person with a freshly sharpened tool. just an FYI.

@_jurist 5 жыл бұрын

I’m sorry but you didn’t have a 40° angle consistently across that. You swept the wings back at 40° but you didn’t have 40° from the cutting edge back to the thickness of the wing. Like you did at the tip. Because you had the tool rolled over too far. And you can see it just looking at your grinder marks.

@wortheffort 5 жыл бұрын

It's different if you have a parabolic or U gouge, key is to get it horizontal to the ground. If it's +/- 5* I don't think it matters much.

@_jurist 5 жыл бұрын

wortheffort fair enough