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Precision ground FLAT STONES - Home Shop

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Cà Lem

Cà Lem

Күн бұрын

Couldn't find these stones here so i decided to make some of them ;)
As always, Thanks for watching and thanks for your support: / calem21
Here's Mr. Robrenz video: • PRECISION GROUND TOOLR...
GO check his other videos. He won't disappoint you, i promise.

Пікірлер: 210
@465maltbie
@465maltbie 4 жыл бұрын
As you continue to try new things and grow your skills it is a joy to see you succeed. Many people look at machining only as a means of production. But they fail to understand the process of machining is an artistic and problem solving exercise. Thank you for taking the time to share your efforts. Charles
@wbryantclark
@wbryantclark 4 жыл бұрын
Cà Lem, I just can't get enough of watching you refurbish old and neglected machines back into service. Your humble, yet impressive approach is very inspiring. I love the hanging garden too. I'm looking forward to the next addition to your shop. Another refurbished machine, or a new fabricated idea always brings me back to watch with joy and leaves me with a good feeling that there is more to come. Thank you sir. As always... well done 😃
4 жыл бұрын
wbryantclark thank you.
@bradthayer6782
@bradthayer6782 4 жыл бұрын
Love your garden! And you are doing a wonderful job building a full-featured shop.
@asbcustom
@asbcustom 4 жыл бұрын
Thanks to the selfless and tireless work of the KZfaq machining community, I expect to see a world-wide Rennaissance of the trade among the "doers". Thank you everyone, and Robyn in particular, you are a humble, masterful, and inspirational instructor.
@tableshaper4076
@tableshaper4076 4 жыл бұрын
As a woodworker I was thinking, he's making feather boards, what the hell for! My feather boards turned out to be very clever grinding stone hold downs, great job.
@DudleyToolwright
@DudleyToolwright 4 жыл бұрын
An awful lot communicated with a single word of dialog. Very nice.
@davesmith9325
@davesmith9325 4 жыл бұрын
You accomplish miracles using only normal tools. This is the sign of a MASTER craftsman. Great respect !
@onsecondthought4174
@onsecondthought4174 11 ай бұрын
Another genius with the angle grinder. No guard. No side handle. No 2 points of contact. No heavy leather gloves for protection. No eye or face protection. Just brilliant.
@kevinfaulkner8801
@kevinfaulkner8801 4 жыл бұрын
Nice use of the tool makers clamp! I had not thought of that. Again, nicely done. I guess I am going to need to start looking for a good used surface grinder. Thanks.
@CraigsWorkshop
@CraigsWorkshop 4 жыл бұрын
I loved seeing the magnet powered steel clamps - very ingenious. Great that you can now make precision flat stones. I am saving up for a set.
@OstapHelDesigns
@OstapHelDesigns 4 жыл бұрын
Precision ground stone is my great discovery of 2019 due too Robinrenz and Stefan Gotteswinter videos 😊you will use them everyday for almost everything! Well done and greetings from Poland!
@ROBRENZ
@ROBRENZ 4 жыл бұрын
Very nicely done! subscribed. ATB, Robin
4 жыл бұрын
ROBRENZ thanks uncle Robin
@xenonram
@xenonram 4 жыл бұрын
Wow, an endorsement from the man himself. Impressive.
@jeffo881
@jeffo881 3 жыл бұрын
No pressure
@peteroleary9447
@peteroleary9447 4 жыл бұрын
Mr. Cà Lem is a very resourceful young man. He fabricates a brake dresser and magnetic finger holddowns - amazing! A brake dresser usually uses as crystolon (silicon carbide) grit wheel. This type of dresser has a rotor with pads that expand centrifugally inside a housing, providing some resistance to free spinning at the speed of the diamond wheel. I prefer a motorized dresser. If equipped with a speed control it is more efficient and helps keep the diamond wheel flatter and without rolled-off corners. Still, awesome job. He is to be supported and encouraged in all ways.
@zephyrold2478
@zephyrold2478 4 жыл бұрын
I second that.
4 жыл бұрын
Peter O'Leary I didnt even know that we can dress the diamond wheel since last week. Just a quick and dirty build to make a job done. Also messed around with surface grinder. First time got my hands on it. Thank you for this informations.
@peteroleary9447
@peteroleary9447 4 жыл бұрын
@ You seem to be getting your hands on many things and learning by doing. This way was impossible until KZfaq. You would either have had to figure it all out yourself or worked for a company as an apprentice. There is very little organized literature for these trades. I congratulate you for seeking out and finding good information (ex. robrenz) and putting it to good use. I wish you success for your future. You seem to be having fun doing it.
@douglasharley2440
@douglasharley2440 3 жыл бұрын
11:03 not only is your machining beautiful, your gardening is too! *respect.*
@arnljotseem8794
@arnljotseem8794 4 жыл бұрын
Great work. Making all the tools as you go, you're not shying away from a challenge
@rickpalechuk4411
@rickpalechuk4411 4 жыл бұрын
Testing the stones after grinding, that's the challenge. Thanks for sharing, Cheers
4 жыл бұрын
Yeah. It's true
@mumblbeebee6546
@mumblbeebee6546 4 жыл бұрын
Cà Lem If it's true, then I offer congratulations! (I could not resist that...)
@TheRadioShop
@TheRadioShop 4 жыл бұрын
Those stones will most likely be better than the ones you purchased. Great job!
@mumblbeebee6546
@mumblbeebee6546 4 жыл бұрын
I admire your work and respect your skills already, now I also adore your hanging garden! :)
@prjndigo
@prjndigo 4 жыл бұрын
Always buy 3 stones. Grind A against B, then B against C, then C against A. You gotta bash the rocks together. This pattern done in just a few strokes in each combination over and over will produce a more flat stone than the process in this video. Wheels make wavy surfaces. We've known this trick for close on 8,000 years.
@TwohandsStruggler
@TwohandsStruggler 4 жыл бұрын
Great to see that there are people who lover their machine's and keep on improving them. And when you buy cheap stuff you most likely are buying two times xD .
@RutherfordRyan1
@RutherfordRyan1 4 жыл бұрын
Or you could say “ Twice “
@msquared6324
@msquared6324 4 жыл бұрын
Very cool! Nice innovation with the discarded grinding wheel. Nice work all around 👍👌
@craigtate5930
@craigtate5930 4 жыл бұрын
I literally just thought about getting stones out of a bad grinding wheel a few days ago...great minds think alike. Nice video
@magnumpunch
@magnumpunch 4 жыл бұрын
So modest as well.
@stanstevens3783
@stanstevens3783 4 жыл бұрын
You are very resourceful and show a wide range of skills
@Self_Evident
@Self_Evident 4 жыл бұрын
Awesome video! I also like the Schaublin rebuild. All of them very inspiring! But, I have to say, I'm now torn between wanting to get off my ass to try to accomplish/go do something like that myself, and wanting to stay sitting here watching the rest of your videos... :)
@bobwilson7684
@bobwilson7684 Жыл бұрын
Beautiful Cá Lem, is beautiful what you do, is beautiful the way you show the beauty of it. keep it up, you are a true artist, you have a serious mojo going on there, you will fly high. ))
@JM-br9sp
@JM-br9sp 2 жыл бұрын
Love the clamp technique
@nectouxpierre4634
@nectouxpierre4634 4 жыл бұрын
Bravo, I really love the wheel dresser! Nice video
@richardhead8264
@richardhead8264 4 жыл бұрын
_Cà Lem Excellent craftsmanship and demonstrations!!_
@a320214
@a320214 4 жыл бұрын
Very Nice and Very Clever !!! Thank you !!!
@VastCNC
@VastCNC 4 жыл бұрын
Your shots and camera work are top notch!
@roxter299roxter7
@roxter299roxter7 3 жыл бұрын
You obviously see the beauty in precision
@forrestgumpv9049
@forrestgumpv9049 4 жыл бұрын
Great idea and good job on the video. Machinist 40+ yrs, have not seen that one !
@irfanashraf1238
@irfanashraf1238 4 жыл бұрын
The moment I saw feather board clamps I gave you 👍🏼 and a subscription
@Imba-gt7qi
@Imba-gt7qi 4 жыл бұрын
Nice tecnic, but remember, wenn your grindstone ist bigger than the Metal, you grind at the edge of the metal first (handgrinding)! even both are perfect flat, best way is to get two stones, one bigger, one smaller. with the smal you grind more in the center.
@Xlaxsauce
@Xlaxsauce 3 жыл бұрын
pretty good use for a bad wheel. most people throw them away
@bostedtap8399
@bostedtap8399 4 жыл бұрын
Excellent, CBN wheel dresser works well. Thanks for sharing and best regards from the UK.
@jawadibrahim2367
@jawadibrahim2367 4 жыл бұрын
that was beautiful, nice work making that dressing tool too.
@liquerinfrnt
@liquerinfrnt 3 жыл бұрын
That was neat how you could see the chatter from the grinder after you stoned the part at the end. Shows you how many levels there are to a precision flat surface.
@samrodian919
@samrodian919 Жыл бұрын
It was also amazing to see how far the centre punch mark actually deforms the surface. After stoning you could see a big ring of flattened steel around the dot mark.
@artmckay6704
@artmckay6704 3 жыл бұрын
nice work! Flat stones are definitely a must have in every shop! Kudos! :)
@HanstheTraffer
@HanstheTraffer 2 жыл бұрын
Exellent. Thanks for sharing.
@xConundrumx
@xConundrumx 4 жыл бұрын
Dude ... if I had money I would fly you over to my country and start a damn business with you! You are too damned talented!
4 жыл бұрын
If i had money i would buy a damn aircraft and fly around the world ;)
@xConundrumx
@xConundrumx 4 жыл бұрын
Cà Lem build one!
@josephlovell6951
@josephlovell6951 4 жыл бұрын
Grate job my friend glad to see your doing well. Keep up the good work
4 жыл бұрын
Thank you!
@josephlovell6951
@josephlovell6951 4 жыл бұрын
Where do you live if i may ask
@majong_da
@majong_da 4 жыл бұрын
@@josephlovell6951 he is from Vietnam
@josephlovell6951
@josephlovell6951 4 жыл бұрын
Thank you for that information
@josephlovell6951
@josephlovell6951 4 жыл бұрын
I hope viruses for China does not make it there the thought of you geting sick would be bad. I am very impressed with your improvement as a machinest
@rodneykiemele4721
@rodneykiemele4721 4 жыл бұрын
Great wheel dresser, Thanks
@rizalardiansyah4486
@rizalardiansyah4486 4 жыл бұрын
I don't even know what these stones are for but I watch it till the end anyway lol
@joshwalker5605
@joshwalker5605 4 жыл бұрын
very fancy flood coolant system you have there at 9:30 ;-)
@40nmugzy
@40nmugzy 4 жыл бұрын
Nice I like your channel. I’d like to hear you talking. Practice makes perfect. Don’t worry we think it’s cool to watch your videos from the other side of our planet. I had my granddaughter watchind
4 жыл бұрын
nicholas marzigliano thank you. Maybe next video
@thaipham9786
@thaipham9786 4 жыл бұрын
ui. lần đầu tiên thấy được 1 kênh Việt Nam về kĩ thuật có độ chuyên nghiệp không kém 1 kênh nước ngoài nào. cảm ơn a đã cho ra những video chất lượng thế này. xưởng a có đầy đủ máy mài phẳng bàn Map ùi luôn. không biết a có kênh facebook không ạ
@rsemrad2
@rsemrad2 4 жыл бұрын
At 5:00 the grinder sounds like it is loading up. Is it because you spray cool rather than flood cool? What is your feed rate? 6:15 I really like your spring clamps to tighten and apply downward clamping pressure. I prefer that to precision vice. 👍
@maximpozdnyshev2013
@maximpozdnyshev2013 4 жыл бұрын
Nice! Greetings from Russia for good work!
@bartharkemametalworks2299
@bartharkemametalworks2299 4 жыл бұрын
Nice work Cá Lem.
@jeffanderson1653
@jeffanderson1653 3 жыл бұрын
Brake Dress!! I'm making one. I was trying to figure out how I was going to get the flat spots, facets, out of the Shars, diamond wheel. Thank you
@Just1GuyMetalworks
@Just1GuyMetalworks 4 жыл бұрын
Cool! Don't see that everyday! 👍😊👍
@SolidRockMachineShopInc
@SolidRockMachineShopInc 4 жыл бұрын
Nice Job! Steve
@geoffgeoff9835
@geoffgeoff9835 2 жыл бұрын
Thanks again
@PracticalRenaissance
@PracticalRenaissance 4 жыл бұрын
great work! you make it look easy!
4 жыл бұрын
Thanks! just a piece of cake for you, man.
@keithparady2594
@keithparady2594 4 жыл бұрын
Good job man
@rgmoore
@rgmoore 4 жыл бұрын
Another great video. You make it look so easy.
@jrod4538
@jrod4538 4 жыл бұрын
Tool maker tricks 👍👍 Don’t give away too many of these 😂😂
@chuckphilpot7756
@chuckphilpot7756 4 жыл бұрын
JROD What kind of backward ass logic does that amount to? So fuck all the next generations? Are you an idiot? I am going into toolmaking currently after having been a mechanic, a machinist as well as a swiss machinist as well as heavy fabrication, stamping, drawing, pilger milling, welding, electrical, circuit layout and diagramming, pneumatic, and hydraulic systems. and most anything else you could think of.. KZfaq is the #1 source of information(Aside from the exponentially decreasing rate of even availability of traditional apprenticeships) in days where Toolmaking is a trade that is dying by the day. Hopefully You are just ignorant and not outright purposely deceptive. Holding someone else's life back because you want a little power (information) over them is quite honestly the most petty thing you could possibly choose to do with your pitiful existence. You got a brain, roughly between the time you were conceived and when you were born if I am not mistaken lol. You should try using to think about more than just yourself for once.
@antbalci
@antbalci 4 жыл бұрын
Gerçekten akıllı bir adamsın. That's how we say "You are really a wise man" in Turkish.
@flatsurfaces1913
@flatsurfaces1913 4 жыл бұрын
I see you watched robin renzeti’s video on how to make precision ground flat stones.
@454Casull
@454Casull 4 жыл бұрын
just one person here yes, that’s what it says
@stevecanny1583
@stevecanny1583 4 жыл бұрын
Beautiful job on the brake dresser Cà Lem! I've got to make myself one of those :)
@ominguti6345
@ominguti6345 Жыл бұрын
Great video, I literally laughed out loud when I saw you cutting that grinding disc As I did thd exact same thing few days ago! Robrenz has not addressed the problem of useless "combination stones" at all. I can see you've discovered it very quickly with your "Chinese stone". Those currently popular bench stones (not just Chinese, also German and many other) are way too soft to be used as a precision ground stone. You can't rub them together because they grind each other down despite being dull on top of the grains... I wish you mentioned something about it in your video, but I understand not wanting to contradict "established masters" who erroneously say "take any combination bench stone and grind it". That's not how it works. The stone has to be at least K hardness (preferably L). The smaller the grit the more important it is that the bond is hard. All those crappy "waterstones", "heystones", "kenzo stones", "Japanese sharpening stones" are all TOO SOFT. But WHY? Why coul a person walk into any hardware shop in the world 30 years ago and buy a hard stone for small change, and suddenly now ALL SHARPENING STONES ARE SOFT! I have a theory. I believe it is because of the popularity of Japanese blades and knifes. Everyone considers Japanese steel as (rightfully) good, and their knives too, so a random person thought if they have great knives they must be masters in sharpening them, right? But this is soo wrong. In Japan, there is no naturally occurring hard abrasives, only fairly soft ones. So over centuries Japanese made the best with the crappy abrasives they had at their disposal and they've managed to come up with excellent blades despite it's shortcomings. Unfortunately, because the traditional Japanese method used very soft abrasives and it was traditional it must have been good, right? All the European (less in America) traditional stones were thrown out and every shop now sells those pityful soft things. A brick is harder than some of them! The other day I bought another (new brand, one can hope, 240 grit) and when starting to grind I was marking it with a pencil. The pencil had dug into the stone where I pressed harder.... So Ca Lem, Thank you for showing how you're cutting that grinding wheel to make your stones, at least you illustrated the problem.
@BurtonsAttic
@BurtonsAttic 4 жыл бұрын
Flat! Man it's still really cold here, nice to see your garden!
4 жыл бұрын
Thank you uncle John. Maybe next time i'll show the rest of it. my shop is tiny but my garden is a real football stadium.
@jeanloreaud9282
@jeanloreaud9282 4 жыл бұрын
Joli travail bravo à bientôt salut Jeannot 🛠😉
@carllie4848
@carllie4848 2 жыл бұрын
Hello. Always look at your videos. Thanks. But I Wonder witch type of grit is it on these Stones?
@brandontscheschlog
@brandontscheschlog 4 жыл бұрын
Nice job!
@DK-vx1zc
@DK-vx1zc 4 жыл бұрын
Very interesting! Thanks for sharing.
@fulljackrackoboe
@fulljackrackoboe 4 жыл бұрын
6:02 "China again" lol
@DanKoning777
@DanKoning777 3 жыл бұрын
Hate to admit it, but this nasty monster [China], is one we built ourselves; starting from the top on down.
@fulljackrackoboe
@fulljackrackoboe 3 жыл бұрын
@@DanKoning777 What do you mean by "we"?
@DanKoning777
@DanKoning777 3 жыл бұрын
@@fulljackrackoboe // Congratulations for being the only one who has never purchased anything made in China; or did my comment go over your head?
@fulljackrackoboe
@fulljackrackoboe 3 жыл бұрын
@@DanKoning777 Are you a fortune teller or it's just your ego that makes you write that crap? Because I haven't said anything yet, you´ve made it all up yourself. The only thing that went over my head is your rudeness and your petulance . Do not speak on behalf of the rest of the world's population, perhaps there are some people who thinks and acts in a different way as you do. Don't come out of the blue bothering other people and don't pretend to know everything. This is about companies no about individuals, doesn´t matter if you or me or our friends buy a few stuff in fucking China or made in China, it will not make much of a difference. Or do you think they are that big because of our purchasings? All that greed from the companies has made this happen. 20 years ago I said that was gonna happen and booom here you have it. I´ve been always against buying Chines stuff and I'm not buying Chinese stuff as much as I can but it is obvious that nowadays is almost impossible as everybody knows. And NO, not all of us have build this monster.
@DanKoning777
@DanKoning777 3 жыл бұрын
@@fulljackrackoboe // Truth is a stubborn thing; isn't it? Have a nice day.
@DuncanAitken
@DuncanAitken 4 жыл бұрын
Bravo! wonderful work, as always. It's great to see that the time you invested into restoring your machines is starting to pay dividends. Thanks for the insight into how, and why, you go about flattening the stones. Very clever with the spring steel too.
@theprojectproject01
@theprojectproject01 4 жыл бұрын
That is really, really inspired.
@adityapartapsharma7041
@adityapartapsharma7041 3 жыл бұрын
12:11 you killed my soul, that cruel and heartbreaking
@emilianopalacin986
@emilianopalacin986 4 жыл бұрын
Estupendo trabajo. Un saludo desde España
@OldIronMachineWorks
@OldIronMachineWorks 4 жыл бұрын
Great job
@douro20
@douro20 3 жыл бұрын
I've heard Soviet/Russian diamond/CBN wheels are quite good.
@TheAyrCaveShop
@TheAyrCaveShop 4 жыл бұрын
Nice Work Ca....Enjoyed 👍
4 жыл бұрын
The Ayr Cave Shop thank you
@jeffanderson1653
@jeffanderson1653 4 жыл бұрын
You have inspired me to grind some smaller stones. I have already ground the 2x6 Norton orange and brown (made in Mexico = good or bad?) They are used all the time in my shop. Well done, as always, I look forward to your videos.
@samrodian919
@samrodian919 Жыл бұрын
I too have Mexican made Norton orange and brown stones and even as bought they're not too bad
@werschkowdennis6533
@werschkowdennis6533 4 жыл бұрын
Very good Work. Bravo Maestro. 👍
@wojciech_migda
@wojciech_migda 4 жыл бұрын
I really like the was how you made this really nice pieces of soap bars for the tough men among us, to scrub all the dirt after a long day in the workshop. These bars of soap should last a long time and will get your body perfectly clean ;-)!!!
@MRNVCDIY
@MRNVCDIY 4 жыл бұрын
Hi my friend. Hehe.
4 жыл бұрын
Khoẻ ko bác. hết Corona chưa
@MRNVCDIY
@MRNVCDIY 4 жыл бұрын
May quá k sao. Hehe. Vẫn khỏe để xem video DIY.
@wlogue
@wlogue 4 жыл бұрын
Nice! Thank you.
@James-fs4rn
@James-fs4rn 2 жыл бұрын
👍 nicely done! Where did you learn so much of the trade? Did you have a school or mentor?
@sinadaneshkhah8537
@sinadaneshkhah8537 2 жыл бұрын
Hello Thank you for your helpful video. Ihave one qoetion please give response if it’s possible. Why when igrinded my stone white diamond wheel is not sharp like before? Also is exactly flat surface but isn’t sharp like before
@elcidbob
@elcidbob 4 жыл бұрын
Seems like just using 3 like for creating surface plates would be the better route.
@majong_da
@majong_da 4 жыл бұрын
Cool tattoos 😁😁😁👊👍👍
@toolman7540
@toolman7540 4 жыл бұрын
You're in a class by yourself.
@woozhi9218
@woozhi9218 4 жыл бұрын
You should try lapping or scraping
@vinkl25
@vinkl25 4 жыл бұрын
We make grinding stones like that in the company where I work.
@brucekoehler276
@brucekoehler276 4 жыл бұрын
wonderful work
@tommasofossati5123
@tommasofossati5123 3 жыл бұрын
2:56 20ton press
@Turco70
@Turco70 4 жыл бұрын
nice orchids
@boanchen589
@boanchen589 4 жыл бұрын
Nice flat !!
@lohikarhu734
@lohikarhu734 4 жыл бұрын
I'm just a beginner...is it so that the dressing stone is at a very small angle to the diamond wheel, so that it rotates 'across' the diamond wheel, a bit, and spins at a much lower speed than the diamond wheel?
@Steve_Just_Steve
@Steve_Just_Steve 4 жыл бұрын
Great work buddy.
4 жыл бұрын
thanks buddy!
@nikadmin1244
@nikadmin1244 4 жыл бұрын
Стекло + карбид кремния + вода = ровный камень. Керамогранитная плитка + карбид кремния + вода = ровный камень. Вместо карбида кремния можно использовать просеянный песок. Ровно тот же эффект но чуть дольше.
@jalechavez6042
@jalechavez6042 3 жыл бұрын
Very Gooddd....!!! My friend...ji ji ji
@kanishkabanerjee8921
@kanishkabanerjee8921 4 жыл бұрын
Seems like your "brake"dresser is using only bearing preloads...are they not centrifugaly braked as they should be?...
@senseyZ
@senseyZ 4 жыл бұрын
Thank you for the video, great, I can't find-what kind of stones do you use and what is their grain? Thank you in advance.
@russellhayward2359
@russellhayward2359 4 жыл бұрын
Excellent work. 😁
4 жыл бұрын
Thank you!
@russellhayward2359
@russellhayward2359 4 жыл бұрын
@ all of your videos are excellent. Having the surface grinder will just add another element to the work you can produce.
@TomMakeHere
@TomMakeHere 4 жыл бұрын
Very nice work! These are also on my to do list
4 жыл бұрын
TommyGun Machining oh yeah. Test your SG as well
@TomMakeHere
@TomMakeHere 4 жыл бұрын
@ I'll have to copy your grinding jig, that is a great idea
@yazanalfaourgaming8555
@yazanalfaourgaming8555 4 жыл бұрын
Amazing 😉
4 жыл бұрын
You first ;)
@ExtantFrodo2
@ExtantFrodo2 4 жыл бұрын
What did you need to dimple that block for? The stones brought out the ripples of the grinding process. Fantastic!
@xenonram
@xenonram 4 жыл бұрын
The point of precision ground flat stones is to remove dings and dents from machines surfaces without being able to remove any of the flat surface of the material. (Like indicator bases, to get any burrs or upset areas out of a house and mill table before you put the vise back on, after doing a scraping pass to get all the burrs flat before you blue it again, or any flat machined surface.) You rub it on any flat machined surface that is going to interface with another flat surface in case it got and dents while it was in storage, being transported, or while being handled. When you rub the stone on a flat machined surface, you can feel/hear any areas that are upset, and you can hear/feel when they become flat again. He center punched it so that it would raise/upset an area to show off how the stones work. The stone will flatten the upset areas, and make the surface flat again. The benefit is that, once the upset area is flattened, no matter how long you continue to run the stone over the surface, it won't take any more material off. It polished the high spots in the chatter (ripples) from the surface grinder. That's why they're more visible. Even though the amplitude of those chatter undulations is probably only on the order of "half tenths" (50 millionths or 0.000050") from peak to trough, the stones still knocked enough of the peaks off, to polish them enough, to make them more visible.
@ExtantFrodo2
@ExtantFrodo2 4 жыл бұрын
@@xenonram *" Even though the amplitude of those chatter undulations is probably only on the order of "half tenths" (50 millionths or 0.000050") from peak to trough, the stones still knocked enough of the peaks off, to polish them enough, to make them more visible."* Isn't that what I said? That alone was enough to demonstrate their flatness. The dimple was superfluous.
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