Make a Dedicated Negative-Rake Shear Scraper

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6 жыл бұрын

I've always been a fan of shear scraping. It seems to be the only way to get rid of torn grain, which I always have. So I have made a dedicated tool for shear scraping. Never one to take the simple route, I also added a negative-rake to the shear scraper.
It only takes a bar of steel, an inexpensive HSS cutter, and a couple of inexpensive tools which you may already have. As a big bonus, it's easy to do and only takes an hour or two to make.
Here are some links that might be useful if you want to make your own dedicated negative-rake shear scraper:
HSS cutters:
bit.ly/2zpEfVd (Woodturning Tool Store)
bit.ly/2lU6jqb (AZ Carbide)
bit.ly/2lUZYuP
Steel bars (beware the shipping costs)
bit.ly/2lYvuIi
ebay.to/2KyxUvU
Tap set, 10-32:
amzn.to/2IW3xtQ
amzn.to/2KIzsTv
Tap wrench
amzn.to/2MQbOBP
amzn.to/2IUnAZF
7/10/18 - Tod Raines at the Woodturning Tool Store (link is above) just sent me some information on how he sharpens his teardrop cutter. Here is what he said:
I grind and sharpen these cutters to about 75 degrees. For the initial edge shaping I use an 80 grit CBN wheel and for final sharpening I move to a 180 grit CBN. I put the grinder platform very close to the wheel - probably about a 1/16th inch gap. For resharpening, use a fine grit wheel (either friable or CBN) and use light even pressure. I place the cutter straight on the grinder platform and use my fingers to hold the cutter to the platform and rotate around the teardrop shape.

Пікірлер: 147

@pajonate 5 жыл бұрын

Made one a week ago, and I really like the way it works. Thanks for sharing your process.

@RickTurnsWoodturning 5 жыл бұрын

That’s great. I love mine. Thanks for watching, Pajonate.

@tonymathesonxvs11001 5 жыл бұрын

Just to say a big thanks Rick for confirming my thoughts and adding extra tips to my intended shear scrapers. I will be making two one for a segmented turning project I am on with at the moment and trying a different angle of 15 degrees as I will be using the other to shear scrape a future epoxy resin project I have in mind. I have found the inclusive angle of 15 degrees works best with little or no chip out of resin. Thoroughly enjoyable and very informative video/posting, thanks again for your time and shared knowledge. Until your next adventure, regards and best wishes. Tony

@RickTurnsWoodturning 5 жыл бұрын

Thank you, Tony. I hope your tool making goes well.

@hardyhobbs 4 жыл бұрын

Thanks for the video! My daughters boyfriend made me one using your video for directions. It turned out real nice. It works real well.

@RickTurnsWoodturning 4 жыл бұрын

That’s great! I’m glad it’s working for you.

@MikeWaldt 6 жыл бұрын

An excellent tutorial Rick, and a very effective tool at the end as well. Great video. Cheers Mike

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Mike.

@donnorton7304 4 жыл бұрын

Rick I made one of these from your video a few months ago It works wonderfully Thank you

@RickTurnsWoodturning 4 жыл бұрын

I’m glad to hear that, Don. Thanks for watching my videos.

@PhilAndersonShadyAcresWoodshop 6 жыл бұрын

Thank for the "how-to," Rick. Well explained, great close-ups. Great job! Best, Phil

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Phil.

@donbomer5630 6 жыл бұрын

Thanks for a great video Rick. Gotta make one of these to compliment my other carbide tools.

@RickTurnsWoodturning 6 жыл бұрын

Thank you again, Don.

@kevingeaney7741 4 жыл бұрын

That special bit for getting started is called a slocombe bit. They are a great job for accurately starting the hole. Good vid Rick!

@RickTurnsWoodturning 4 жыл бұрын

Thanks for the info, Kevin. I don't have any training or experience in metal-working, so every bit of information helps.

@danhealy7341 6 жыл бұрын

Thanks for another entertaining video. I have a few tools with carbide tips but will add this one to the arsenal.

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Dan.

@timrileyjr353 6 жыл бұрын

well, it looks like I will be ordering a teardrop cutter soon.(tomorrow) I have everything else. Great/informative video Rick, thanks.

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, Tim.

@kenferguson2341 4 жыл бұрын

Good video. It looks like an excellent tool addition I’m going to make a negative rake scraper like you did

@RickTurnsWoodturning 4 жыл бұрын

Thanks for watching, Ken.

@missteeturns 5 жыл бұрын

What a great tool. I'm definitely going to make one of these. ☺️

@RickTurnsWoodturning 5 жыл бұрын

Thank you, Miss Tee. In another few weeks, I’ll have a video on my improved version using a carbide bit.

@dutenn 5 жыл бұрын

Thank you! Excellent alternative to woodpeckers ultra shear, that has facets on the bottom.

@RickTurnsWoodturning 5 жыл бұрын

Thanks for watching, Dustin.

@tlewisdean8645 6 жыл бұрын

Nice video. I have made a number of my own tools and drill and tap to hold the bits. To start the tap straight I put the tap in my drill press BUT do not turn it on. I turn the chuck by hand until I have a good start on the threads, then remove the tap and continue in the regular way.

@RickTurnsWoodturning 6 жыл бұрын

That’s a great idea, Lewis...that never occurred to me, but I’m doing it that way from now on. Thanks!

@johncarson1427 3 жыл бұрын

Will be making this tool for sure. Thanks for sharing. Oh and by the way your a hard man on those taps. Seen a couple of your videos where you’ve broken a few!

@RickTurnsWoodturning 3 жыл бұрын

I've definitely broken my share! Thanks for watching, John.

@jackthompson5092 Жыл бұрын

Great idea Rick. I think that I will make one. One suggestion, it is much easier to start a tap if you church the tap in your drill press and start it by turning the chuck by hand. Also if the tap is chucked in the drill press, it will not be dropped and broken.

@RickTurnsWoodturning Жыл бұрын

That’s a great idea - thanks!

@ThePapa1947 6 жыл бұрын

I like the whole idea of making this. And I have everything needed to do it. I have some 1/8" thick spokeshave blades that will work perfectly. They are about the same size as what you used. I was always going to use them to make a spokeshave using the castings we had at work. I like the idea of a negative rake scraper as well. I recently made a fluteless gouge and 2 spindle gouges from drill rod and they worked great. So this will be a fun project as well. Thanks for the idea. Gary

@RickTurnsWoodturning 6 жыл бұрын

I never thought about using spokeshave blades, but then I don't have any spokeshaves. :-) I hope the one you make will work as well as this one - as I said in the video, it works great! Thanks for watching.

@ThePapa1947 6 жыл бұрын

RickTurns thanks I will let you know. I may document the process with pictures and maybe video.

@stuntdouble5933 Ай бұрын

Exactly what I was looking for, thank you very much

@ScrapwoodCity 6 жыл бұрын

Pretty cool tool man, thanks for sharing

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching!

@tomasarguinzoni9022 6 жыл бұрын

Very nice tool thank you for sharing great ideas 👍🏼🍻

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Tomas.

@robertmiles388 4 жыл бұрын

Awesome video I’m definitely going to make one thank you

@RickTurnsWoodturning 4 жыл бұрын

Thanks for watching and commenting, Robert.

@Lee-qp6gf 6 жыл бұрын

Nice bits for the Bad Ass. They need a negative rake Bad Ass. Nice tool.

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, Lee.

@darrenswoodworks8695 6 жыл бұрын

I like a guy who says " I'm not going to bother with that who cares." Thanks for the video, I may just have to make one for myself.

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, Darren.

@anthonymaida5718 6 жыл бұрын

GREAT VIDEO !!! Rick

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Anthony.

@carolriley569 6 жыл бұрын

Nice job!

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Carol.

@jackfitzgerald6927 4 жыл бұрын

Cool Rick, Thanks

@RickTurnsWoodturning 4 жыл бұрын

Thanks for watching, Jack.

@jackfitzgerald6927 4 жыл бұрын

I do learn a lot from watching

@kevingeaney7741 4 жыл бұрын

I only learned that a month ago!! We're in the same boat!

@RickTurnsWoodturning 4 жыл бұрын

Now only if the boat doesn't sink! :-) Thanks for watching, Kevin.

@hawkeye10100 5 жыл бұрын

I really enjoyed this video. I am a new turner and I could have more luck making you new scraper than turning the bowl you were working on. LOL When sharpening the scraper I thought you should never sharpen the bevel just the top face of the cutter. That is the way you should sharpen carbide cutters. I am using the EWT carbide tools and diamond plates to sharpen the carbide cutters.

@RickTurnsWoodturning 5 жыл бұрын

You're right about sharpening the top surface. I was being lazy, didn't want to take the cutter off the tool. I switched to a carbide cutter of the same shape after I made this video, and I sharpen it on the top face.

@jeffreyjones4055 2 жыл бұрын

Looks good and works good!!!! My question is would it Be safer if it had a seat milled in to keep cutter from Possibly getting loose and turning on the flat surface?

@RickTurnsWoodturning 2 жыл бұрын

That sounds like a good idea, as long as you don’t plan to change the orientation of the cutter. I rotate the cutter to various different angles to get into tighter areas and to use different parts of the cutter. Thanks for watching, Jeffery.

@johnlehman2157 6 жыл бұрын

Hi Rick To sharpen I would use a diamond hone and place the cutter up side down just the same as when you sharpen a carbide cutter. A few figure 8's and it should be good to go. Sharping this way you don't have to worry about messing up the original angle or shape.

@jimbeaver27 6 жыл бұрын

This will be fine if there's no chipping on the edge. I use a 10x loupe to examine mine for chipping. With carbide I get a lot of chipping, in that case they're scrap. With the HS steel lapping the top should work at least for every other sharpening.

@RickTurnsWoodturning 6 жыл бұрын

Sounds like a good idea, John. But I'd have to remove it from the tool shaft...which isn't hard at all, just a little time-consuming, considering how often I might have to refresh the edge.

@RickTurnsWoodturning 6 жыл бұрын

I've managed to chip up a couple of carbide cutters. I like this HSS cutter a lot. I couldn't find a carbide cutter with such a long edge - at least, one that is sold singly instead of in packs of 10.

@blargkliggle1121 5 жыл бұрын

I like to get the correct angle and shape on a peice of soft metal like bronze, and I make it a little bit larger than the blade. It works the same way sacrificial wood prevents chipping and tearing on your workpiece. If you file the brass down to the blade, you can sharpen the edge without making a bur. It's not as simple as it sounds, and it's very time consuming, but it makes for a very accurate edge.

@Stephens8x6Workshop 6 жыл бұрын

That is one snazzy tool Rick and so is your devastator 5000! ha ha

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Stephen.

@mhaz49 6 жыл бұрын

Been looking at the Sorbey model of this and now I'll make my own. Be careful cutting/grinding zinc coated steel. There is a LOT of toxic crap that comes off of it.

@RickTurnsWoodturning 6 жыл бұрын

I don't think this bar had any zinc coating on it. Did it look like that? The description on the web site didn't mention it. Thanks for watching, Mark.

@juanmcarreno9122 5 жыл бұрын

thank for sharing

@RickTurnsWoodturning 5 жыл бұрын

Thanks for watching, Juan.

@garyculver203 Жыл бұрын

You inspired me to make one just like yours but I am not getting the ribbons like you get. I did not sharpen out of the package, I will once I get my cbn wheel but is there a a technique I should work on?

@CarlMorris-jy7rq Жыл бұрын

I don't think I sharpened mine when I got it. While the shaft holds the cutting bit at 45 degrees, there is also the horizontal angle to be considered. I suggest swinging the handle of the tool back and forth until you find the best spot to cut. Hope that helps!

@nigelwylie01 6 жыл бұрын

5:55 “That special someone in your life: Yourself!” 😂.

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, V.

@leksey7870 6 жыл бұрын

A good tool turned out. Great cut.

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Aleksey.

@turkeycreekknives133 4 жыл бұрын

How would you sharpen this scraper on diamond stone ? Never mind saw it down the line

@RickTurnsWoodturning 4 жыл бұрын

Place it top-down on the stone and rub with some honing lubricant. You only want to sharpen the top, trying to sharpen the sides would be just about impossible. I’m not sure what you mean about “saw it down the line”.

@ronkerr6441 3 жыл бұрын

Rick, I've purchased all of the pieces. Will be first turning tool I've made. You mention the copper collar is a pipe fitting. Is it a cap you drilled a hole in the end or something else? What size 3/4"? Thank you

@RickTurnsWoodturning 3 жыл бұрын

I used a pipe coupling. I don’t remember the size, but I’m pretty sure it was larger than 3/4”. I’ll always use as large a piece as I can find. In the tool I just finished making (just put the video up an hour or two ago), I used a 2” piece.

@ronkerr6441 3 жыл бұрын

@@RickTurnsWoodturning thank you. I’m anxious to get mine put together.

@bobandreas4453 4 жыл бұрын

Rick could you please tell me where I can purchase the teardrop cutter and the torxhead screw. Thanks Bob

@bobandreas4453 4 жыл бұрын

Scratch that I watched the begining !!! LOL

@RickTurnsWoodturning 4 жыл бұрын

Glad you found it! Here's the url anyway - bit.ly/32LrDSs. Thanks for watching, Bob.

@NyMozdonyvezeto 3 күн бұрын

Nagyon sajnálom, hogy eltört a menetfúrója!

@stormdrifter7904 6 жыл бұрын

I love when you do silly stuff

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Alastair. But that silliness hasn't come easy. I fought for a Bachelor's degree in Nonsensical Technology, and managed to graduate summa cum laugha. Thanks for watching.

@dondeere Жыл бұрын

how come it dont have a ridge ground so it would be locked in place

@RickTurnsWoodturning Жыл бұрын

I reposition the cutter to allow me to get into smaller places, like an inside curve. So I don’t want it locked in place. Thanks for watching my video, Goodwin.

@impulse0341 6 жыл бұрын

Awesome

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching!

@tcacfoh 6 жыл бұрын

Do you ever think about doing a demo at a Woodturners club? Awesome

@RickTurnsWoodturning 6 жыл бұрын

Thank you, Glen.

@gary313 5 жыл бұрын

Now that you have used this tool would you make any changes? Steel length/size? Angle of scraper? Thanks,

@RickTurnsWoodturning 5 жыл бұрын

I’m pretty happy with it. I would really like to replace the HSS oval cutter with a carbide one of the same shape. I’ve looked all over and have found only one, which costs $88 because it is part of some other stuff that I don’t want. The HSS cutter is clumsy to sharpen. Other than that, I love this tool!

@gary313 5 жыл бұрын

AZ Carbide shows a carbide teardrop but I ordered their HSS with Tungsten since I thought the carbide would be too hard to sharpen. Your thoughts? Would 5/8 or 3/4 steel be better? @@RickTurnsWoodturning

@RickTurnsWoodturning 5 жыл бұрын

Wow, I’ve been to the AZ Carbide site a dozen times and never saw that carbide teardrop cutter. I might just buy it so I can compare it to the HSS cutter. Carbide doesn’t generally get as sharp as HSS, but it holds its edge longer. As for the size, I’d say longer is better. Good luck with your new tool!

@RickTurnsWoodturning 5 жыл бұрын

Oh yeah, carbide is fairly easy to sharpen on a flat diamond stone, as long as the carbide has a flat top surface. I’m not sure how you could sharpen a carbide cutter with a lip blade on the edge.

@gary313 5 жыл бұрын

Thanks but how about the steel size? I think Iwill try 5/8" square.@@RickTurnsWoodturning

@williamswhistlepipes 2 жыл бұрын

Good

@RickTurnsWoodturning 2 жыл бұрын

Thank you, William.

@antoher6 6 жыл бұрын

Мне кажется что эти скрепки на любителя. Спасибо за видео обзор!

@antoher6 6 жыл бұрын

Если можете скиньте пожалуйста несколько ссылок на интернет магазины

@RickTurnsWoodturning 6 жыл бұрын

Благодарим за ваше предложение. Я добавил некоторые ссылки на описание видео. (Перевод, предоставляемый Google Translate - я надеюсь, что это имеет смысл.)

@antoher6 6 жыл бұрын

Спасибо!

@theodorebarrettsr.705 4 жыл бұрын

👍👍👍👍👍👍👍👍👍

@RickTurnsWoodturning 4 жыл бұрын

And thanks one more time, Theodore.

@robs.patrick9691 6 жыл бұрын

To easily start a tap put it in the drill press and turn it bu hand>

@RickTurnsWoodturning 6 жыл бұрын

Thanks for the tip, Rob. I just made that tool again for a friend, and that technique worked great.

@alanmullock381 6 жыл бұрын

Brilliant Rick-but you didn't leave the web address for the Big Ass 5000,please rectify!🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣👍👍👍👍👍👍👍

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, Alan.

@nikburton9264 6 жыл бұрын

Turn concrete? Holy Toledo! Good video, though.

@RickTurnsWoodturning 6 жыл бұрын

BA Woodturning Tools - Our Goal is to Make Simple Woodturning Tools Deadly! Thanks for watching, Nik.

@kenbeattie1958 4 жыл бұрын

That's a great idea! I've got some old HSS planer blades; do you have any thoughts on how I may cut out and drill a hole in hardened steel and then return it to a usable condition for a woodturning tool? And, on the subject of breaking the tap, a new by phrase "Anything that can go wrong, will eventually be shown on Rick Turns."

@RickTurnsWoodturning 4 жыл бұрын

I tried drilling a hole in HSS once, and didn’t even make a dent in it. I did, however, cur a small slot in a HSS bit using a cutting disc on an angle grinder. I like the variation on Murphy’s Law!

@natvlasch 6 жыл бұрын

Thank you, but that cheap bar might vibrate more than you want.

@RickTurnsWoodturning 6 жыл бұрын

Yes, I wanted to get a 3/4” square bar, but I could only find it at a metal supply online store, and the shipping varied from $17 to $22. The 1/2” bar was the only one I could find at a reasonable shipping cost - in this case, from Home Depot, as long as I picked it up from the local store. Thanks for watching, Vladimir.

@BenNawrath 4 жыл бұрын

I believe that’s called a center drill but. But I could be wrong...

@RickTurnsWoodturning 4 жыл бұрын

I believe you're correct. From Wikipedia: "Traditional twist drill bits may tend to wander when started on an unprepared surface. Once a bit wanders off course it is difficult to bring it back on center. A center drill bit frequently provides a reasonable starting point as it is short and therefore has a reduced tendency to wander when drilling is started. While the above is a common use of center drill bits, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally drilled hole (a hole drilled by a high-speed steel (HSS) twist drill bit) is a spotting drill bit (or a spot drill bit, as they are referenced in the U.S.)." Thanks for watching and commenting, Ben.

@stevelavia9146 4 жыл бұрын

can you make me one of these?

@RickTurnsWoodturning 4 жыл бұрын

It’s a great tool! Thanks for watching , Steve.

@CAMEDIATechnology 6 жыл бұрын

@RickTurnsWoodturning 6 жыл бұрын

Thank you.

@charlieodom191 6 жыл бұрын

I would buy one from you. Handle our no Handel!! Let me know if you want to make me one!!!

@RickTurnsWoodturning 6 жыл бұрын

Thanks for watching, Charlie.

@harrykeel8557 6 жыл бұрын

Never did say how much.

@RickTurnsWoodturning 6 жыл бұрын

I’ll speak to BA Woodturning Tools ad agency about that. Thanks for watching, Harry.

@thatellipsisguy8984 4 жыл бұрын

Some of those add-on cutters looked pricey...

@robertwilling164 6 жыл бұрын

not enough detail

@RickTurnsWoodturning 5 жыл бұрын

Thanks for the input, Robert. (Sorry it has taken me so long to reply...for some reason, youtube put your comment in the spam bin, I have no idea why.) My videos are always a compromise between full detail and time. Longer videos don't get watched much. KZfaq reports that the average viewing time on each of my videos is only about seven minutes. I always go way over that!

@julianpreston5298 5 жыл бұрын

I don't want to appear too rude but if you require more detail to make one of these tools, perhaps you should buy one instead, the video makers have to assume a certain level of mechanical and engineering experience, otherwise the videos would have to be hours long..

@busterdavy9769 4 жыл бұрын

That’s not a negative take scraper,that’s just a regular scraper tilted. A negative rake scraper is when the top of the scraper on say 70 deg and the bottom is ground on say 45 deg. The top angle has to be pointing down away from the piece your turning. Same as a neg cutting tool for a metal lathe! Sorry but that’s a fact!

@RickTurnsWoodturning 4 жыл бұрын

Thanks for the information, Buster.

@paulblackman3936 6 жыл бұрын

Nice waste of money Rick. Maybe more practice with a sharp bowl gouge would pay dividends?

@RickTurnsWoodturning 6 жыл бұрын

I think not. I have plenty of practice with a sharp bowl gouge. Even the best gouge work will still leave torn grain on the outside of bowl, right across the end grain. I learned of shear scraping by watching videos of professional woodturners. Check out Lyle Jameison's channel - he has a video in which he discusses shear scraping with a swept-back long-grind gouge. I have used a gouge for shear scraping on the outside of a bowl, and it does a very good job. But not as good a job as the tool I make in this video. On the inside of a bowl, I use a scraper for the most part - that is because I have found that my arms get in the way of my cameras when I use a gouge. Thanks for watching, Paul.