Scraping basics - Scraping flat - Part 2

[@richardking8140]

Thanks for passing on the knowledge I taught you. What I want all my students to do so scraping will not be called a Lost Art anymore. If I would have had You Tube 20 years ago I would done a show on here too, but only had Video and the DVD. Your drawings look familiar, even the show looks familiar.......LOL Stephan is one of the students I call a natural as he understands fast. I know Nick taught him the basics, I am glad I could have added from there. Now that I am ready to retire sooner then later I pray all my kids (students) continue to pass on the knowledge. There are some others on here too that are doing that. Thanks again for attending my Denmark class! Richard King

[@Max_Marz]

Have you retired from doing classes Richard? I've heard rumors there might be one more stateside gathering that I would desperately wish to attend if it ever happened. Where can I keep my eyes tuned for the news, your website?

[@richardking8140]

My son will have my new website finished soon where we will have a schedule. I hope to have a question & answer area in it or on some other place online. I was on one, but to many fakers stresses me out. The site was a great place to teach. I will be teaching in the spring of 2018 in Navasota TX and Springfield VT. I also hope to have my small home shop ready in 2017 - 2018 so I can teach at home in the future. I am committed to teach 2 or 3 classes in Germany and 1 week in Nov & Dec, 2017. UK class is full. My issues in my legs is making traveling almost impossible. Just taught another one at John Saunders (NYC CNC) and this week, doing one in Indianapolis at a private company.

[@Max_Marz]

Wow! quite busy, Ill be keeping my eyes on the site for any classes in the states with open admission. Thanks for working so hard to pass your knowledge on Richard, I've been absorbing it best I can from all the people you've taught and working myself up to picking up the DVD's.

[@SqueeDee]

As I watched this I felt nervous that people would get freaked out that he was sharing what he learnt from you. I know some of us think that our knowledge, especially the hard earned knowledge, is a currency to be traded. And I agree that it is, but it needs to be traded openly, freely, and often. Your knowledge, and Stefan's is surely going to be greatly appreciated. I don't work with metal much, but when a woodworker at a local tool shop took the time to teach me how to scrape wood, I learnt a fantastic skill that I will pass on to my friends and my daughter. The quality of finish with wood scraping is so good, and the finished product I can now produce, is so precise, that the man who taught me has created a legacy. All with just 10 minutes of instruction. I appreciate your openness and Stefan's time/dedication.

[@Cpl.Cadaver]

You should make some how to videos. A lot of people want to learn but can't attend a class.

[@thecorbies]

Hi Stefan. I thoroughly enjoy all your videos, but I think that these Scraping basics - Part 1 & Part 2 are among the best you have done. Beautifully explained in both words and sketches. Certainly for me what had seemed like a bit of a 'black art' now seems eminently doable. Thank you for passing on this invaluable knowledge. Regards Mark in the UK

[@ShadonHKW]

Been so busy with prep for the upcoming event, my you tube watch time is extremely limited, I watched part 1&2 in their entirety, time very well spent. Your explanations and demonstrations make me feel like I could go out and scrape something flat with a high chance of success. The segment on "reading" blue high spots is golden. Well done SZ

[@StefanGotteswinter]

Thank you Stan for taking the time to watch, I can imagine the pile of work you have to get sorted out at the moment :D

[@danhillman4523]

I have been interested in his ever since I watched a couple of guys come in and do an old Cincinnatti boring mill in our shop. I'm talking 24' of base ways so it was a big job. They did some of it by hand and some with a power scraper. I was running an 8" Shibaura just a few yards up the bay from them and talked to them a lot. I have an old lathe that I would like to do now and this helped refresh my memory. We used to scrape in thrust bearings for extrusion machine drives back at another shop I worked at. I remember it being an awful lot of work as was spotting in molds. Of course this was almost 30 years ago now. I am a retired Tool, Die and Mold Maker but have a small machine shop in my barn for machinery repairs and maintenance. Anyway, thanks. I really enjoyed watching this.

[@OORAH659]

Amazing how learning a method of flatening a surface is so interesting ... people have been doing this quite a long time. We The Few are interested because of you...Thank you .. OORAH!!

[@gordonfrank]

Your coverage of high spots was especially helpful.

[@kokleongchong7397]

i like the way u explain how to detect fake high spots, it saves working time, thank you

[@ltloo3436]

"Fake high spot" could be due to in-consistence in applying pigment. best is to know type of pigment you use, learn how to read the "eye" and it surrounding smearing of pigment. and try to memorize the contact pattern and identify the very low hollow spot. that my not so experience tells me.

[@imysteryman]

Every summer I pick gallons of blackberries and my wife make very delicious blackberry pies and she uses honey instead of sugar. Your channel is just like those blackberry pies, I LOVE it!

[@turningpoint6643]

The most scrapeing information in the shortest time I've seen anywhere Stefan. If I had to learn German then try to explain something this technical even half as well I doubt I'd live that long to do so. Nicks videos are really good as well and I sure wish he was still doing them. But I understand and mostly agree with his stance about the KZbin dictatorship rules. As always your videos surpass my expectations every time. And I'm very much looking forward to the next and how to scrape for actual alignment.

[@homeworkshopengineering]

Both of these videos are a great guide. I have had a stab myself in a few things and hoping to take a class this year in the UK.

[@steved8038]

Thank you it took you two short videos to teach what has taken me fourty years to learn very good video. thank you

[@terrycannon570]

Thanks Stephan. As always I learn more and more from your finely detailed explanations. The explanation of high medium and low high spots is brilliant. I would have never assumed that i should look for them in different ranges of depth . Absolutely brilliant transfer of knowledge. Thanks as always for your attention to detail. On a scale of 1 to 10 I certainly put you and Robin at a 10 + .

[@lookcreations]

Nice camera work Stefan, well explained. MuellerNick - he has a lot to answer for ! it gets addictive this hand scraping - looking forward to your next vid's. All the best Mat

[@tombellus8986]

Thank you for the quick class on scrapping. I'm sure you have lit a spark in many of your viewers.

[@frankmuller5649]

Hey TOOLMAKER :) I had such a nice day... first Robin told me what "flat" actually means and then I learned the basics of scraping in two easy to understand videos by you... awesome and easily the best beginner scraping explanations I've seen! Thank you so much for taking the time... very precise explanations and beautiful footage... very educational and interesting. Did you see Robins scraped surface (the one he stoned)... man... I nearly went blind... but now I know what you are up to next. ;) Thanks again and take care!

[@grizzlyrideemwet1698]

Many thanks for an excellent tutorial. While this video is several years old the series is still one of the best I have found on scraping basics.

[@stevecanny1583]

Very nicely done Stefan. I've been scraping for about six months now, but I definitely picked up some important pointers on the finishing aspects that had puzzled me until now. I think this is the best introduction to scraping available on KZbin. I think that's a very good thing because the topic is a bit shrouded in mystery and I think that keeps more folks from learning an important skill for keeping our machines performing well and for building precision tools. If you do more, I'd love to see a similar walk-through for using the power scraper and what new you've learned there. There are essentially no video resources that cover this well that I've found. I know that would be a big help to me in building my skill, and I expect to others as well. Thanks again for such an excellent job and a fine contribution to metalworkers! :)

[@walterfletcher6897]

Thank you for great videos! I’m getting ready to take Richard’s class after being in machining field over 3 decades and always wanted to understand and know how to scrap.

[@ngauge22]

Outstanding! Blows away all the other scraping videos I've seen.

[@andrewrobb633]

Pure gold. You explain things so well. Thoroughly enjoyable and inspiring as always.

[@michaelschnock3998]

thanks a lot stefan, there are so much similar procedures in all technical fields -- identifying failures .- finding a proper way to fix them --< and also how to prevent the root-cause of a reoccurring failure. great video and thank you for sharing. rgds michael

[@ramzibani4897]

de la Tunisie je vous dis merci et bravo pour le travail extraordinaire que vous faite, franchement votre site est une mine d'or pour tous ceux qui veulent apprendre l'usinage, encore une fois bravo et de tout cœur merci. 🙌🙌🙌👍👍👍

[@shawnhuk]

Thank you for doing all this by hand... I do not own or have a hope of ever owning a power scraper. I’m trying to absorb as much as I can about scraping. I’d like to learn, practice - once i can obtain the necessary tools - I’d like to true up my mill and give my lathe oil half moons at least. This was the best video I’ve seen so far, I even bought Richards USB key videos, this video explained much more. Thank you.

[@ikkentonda]

Stefan, this was simply outstanding. By far the best introduction to handscraping I've seen anywhere (and I've been devouring everything I can find on the subject including Mr. King's course, the Connelly book, and the book and DVD from Michael Morgan). I took Richard's course at Keith Rucker's beautiful shop in Georgia just a short time after your class in Denmark, and I've since been scraping just about every piece of cast iron I can find in my shop. I feel like I'm slowly starting to understand what I'm doing, but I sincerely wish I'd seen these videos before attending the class. Richard has a wealth of knowledge and experience, but these videos do a better job of explaining the basics than even his own material (no offense to Mr. King at all -- I'd recommend his course to anyone). Scraping flat, parallel, and square is the all important first step, but I only wish there were a sequence of advanced courses in machine rebuilding. There's a dearth of material on the subject outside of the Connelly book (which will put anyone to sleep within a couple paragraphs). I'd love to extract the forty or so years of accumulated knowledge currently residing in Richard King's head! Thank you sincerely for all your videos. I'm an avid fan.

[@zwerne42]

Great tutorials Stefan! I recently made my first part with the technique: An angle plate "precision scraped" with 20mm glass and an angle grinder Lol. Not bad for an accurate welding fixture. Gathering some better equipment now, hope to see your take on scraping to squareness soon. Thanks for the time to pass the knowledge.

[@robertwatsonbath]

Many thanks Stefan, another great set of videos. Great presentation, brilliant dry humour and amazing attention to detail. I'm mainly an "armchair" machinist but enjoying these.

[@NuclearHedgehog]

Very nicely condensed most of the scraping knowledge into one hour that took the rest of youtube a days worth of videos. :)

[@davidwaters8728]

Thank you for the detailed explanation and your continued dedication to pass on information, as a home shop hobbiest for me it is very much appreciated.

[@ThisIsToolman]

The very best explanation of scraping I’ve ever seen!

[@ianbertenshaw4350]

I have watched a few videos on scraping and these two showed me more than all the others put together ! I really look forward to your next video Stefan !

[@joseeduardomartins6541]

Dear Sir Stefan, just brilliant! Thank you for illustrating us amateurs mainly. The correct way of using the tools is very important to minimize repetitive strain injuries to the joints, and they will happen!

[@garyc5483]

Excellent teaching video Stefan. The best explanation of scraping I have seen on YT. Not sure if I will ever need to scrape a surface but having a little understanding will go a long way to fix many problems. I will follow this series as long as you do it. regards from the UK

[@djberg3483]

your explanation, and details, probably just saved me a few days on my first scraping project, making some parallels from an engine bed plate. have alot of time into the first face. cant wait for the rest of the series. keep up the phenominal work!

[@creativesymon]

This is the best explanation on KZbin. Some of the bits you explained (like the blue shades and their meaning) make me feel more confident than ever to have a go. Can't pay a higher compliment :D

[@brzibung]

Stefan- thank you for explaining the process from start to finish. The illustrations helped immensely. It had been explained before on other youtube offerings but it made more sense this time with your explanation/demonstration/drawings,

[@MakinSumthinFromNuthin]

Very nice series and well explained Stefan, thank you for taking the time to produce them :)

[@StefanGotteswinter]

Thanks for watching! :D

[@MakinSumthinFromNuthin]

I always watch yours :D

[@grottonisred6541]

Great knowledge, thanks for passing it on. I didn't know scraping was so involved. It all makes so much sense the way you describe the process.

[@fermorales9087]

Wow, this knowledge is a wonderful thing for me a hobby machinist-thinkerer. Yes, please teach us how to scrape in parallel to a datum. Thank you for all your time and effort.

[@ltloo3436]

there is always something new to learn about, this time the " blind scraping" ! I had been too careful during the rough scraping phase . now must remember to just plough it through. BTW I learn most my scraping technics from Richard King posts and video. Thanks Stefan for this tutorial.

[@SCANEREXE]

As a former toolmaker I've never had the chance to learn scraping (or Schaben as we call it). The result looks excellent and nice to know how it is done!

[@mihailfelixdumitresc]

Thanks man ! Good to have it explained by someone whose paying attention to as much details as posssible. You rock ! And roll ! Cheers !

[@tiggydorset9041]

Hi Stefan, I have followed you for a while and thoroughly enjoy what you do. I am attending the scraping course myself in December, so this video has helped immensly. Thankyou again!

[@dennismeko]

Thanks for the excellent demonstration of scraping flat.

[@arthurdent8091]

Excellent. I realize that I don't have the patience for scraping but it is nice to know that there are some folks out there who can do this type of work.

[@howder1951]

Great job Stefan, I wish i would have had you tube when I was younger as there were not a lot of tradesmen who had the time or could give a nice explanation like this. Rather it was " you will scrape until you are blue in the face!"

[@flatblack39]

Stephan's grasp of English is superior to most native speakers! His explanations are easy for me to absorb.

[@gm3087]

thanks Stefan for - again - a great vid! Looking really forward to next episodes, especially one about scraping parallel surfaces . Thanks again!

[@davidcolwill860]

Excellent videos Stefan and just in time as I very recently made a carbide scraper. Many thanks.

[@wktodd]

Fine video as usual Stefan. Excellent shots of the blued surface . And, well done for not cheating with the power scraper while the camera was off ;-)

[@StefanGotteswinter]

AAAAAAAAH :D I did only one or two passes of camera with the powerscraper ;)

[@thetezz0001]

i only just discovered scraping was a thing and after watching part 1 and now part 2 of this video i would really like to try this, scraping is an art i'd like to master, great content thanks man

[@oxtoolco]

I had to give this video a thumbs down. It wasn't long enough! Just kidding. Great job Stefan condensing a week of action packed scraping information into less than 30 minutes. All the best. Tom

[@dennisa6132]

This video series is such a good one. I have been rewatching it regularly and I have just started scraping myself. One thing that was really difficult with the insert I bought was the radius, probably 100mm radius on it. It's a good insert IMO, old USSR and mirror finish on the flats. But I had to regrind the radius to 60mm. Made a similar setup with chinese diamond plates and man it was fast and easy. Still for my beginner hands it's still difficult to avoid hitting with the edges sometimes. Going to 40mm might be better still, but I guess I also need to learn to hit the scraper where I want without relying on a smaller radius. I didn't have a block of cast iron so I am making a Stanley #4 plane incredibly flat instead.

[@kaser321saeaf7]

Greetings to you, I am from Syria, and I learned many rules from your lesson

[@pcpkits5330]

Hello. I can not find videos about scraping to parallel on your channel. Are you change your mind of posting them?

[@unclespicey42]

pretty good demo, even better video of the surfaces. Like your explanation of the spots.

[@unclespicey42]

BTW on a second watch i noticed that you scrape exactly the same way as i do dragging the scraper on the back stroke , i does leave a little scratch and wears the edge faster, but gives me a lot more control.

[@StefanGotteswinter]

Thank you! I try not to drag when I finishscrape, but for roughing and semifinishing it is so much faster for me..

[@unclespicey42]

yup, same here, once you are in the dive bomb space, no need to. But as you are laying down rows, it is just much faster and more controlled. it was refreshing to see that i am not the only one who thought so. the price of sharpening more often is a small one to pay.

[@gary851]

This is both incredible and insane.

[@pierresgarage2687]

Hi Stefan, This is a great tutorial about basic scraping, I'll be watching for the next parts... ;) I was gonna register in one of Richard's class but sadly my hands wouldn't survive the task with worsening arthrosis... Keep on the good videos, Pierre

[@caigner]

Danke für die ausführliche Erklärung. Es hat mir geholfen, das Thema endlich zu verstehen.

[@walterg4025]

Part 2 is excellent as well!!! I hope you do more scraping videos!!!

[@mcgama88]

Hello. As I am completely new to scraping, I am so pleased to have a grasp of how to approach the task. *And have a early model South Bend to try my hand as needed refit. I take note of exactly why the lathe ways as tail stock movement are without high friction with light oil. As interested in technique, and of the patience required to best finish, best known pattern....I am at once your student. Thank you for the interesting record of what I view is mastery of scraping to a part. M.

[@edmondmkasian6173]

If i say you 100 times of my thankful i think its not enough, So after this i feel you are my second god on the earth, Thanks for everything, brother

[@chriscraven9572]

Excellent videos Stefan. Really clear explanations Richard must be an amazing teacher.

[@brianwarburton4482]

Thank you very much for taking the time and trouble to explain the scraping process. Excellent video

[@foxxxyben]

Thank you so much for this series, Stefan! This is by far the best explanation I have seen anyone do so far. Definitely looking forward to more like this. In particular, I would really like to see how to scrape machine surfaces in situ, taking a straight edge to heavy parts. I am restoring my benchtop lathe and want to scrape the ways, but the only thing I've seen anybody else do is talk about their straight edges in the rough casting stage, and not showing how to use it. My shop is small and I don't have access to a surface plate large enough to span the full length of the lathe bed, so I am thinking of lapping together some plates using the 3-plate method, but I don't know what material to use or how thick it should be to not sag or warp. Any ideas?

[@717Fang]

I wonder, where I can buy a cast iron block for scraping learning?

[@rickhickman2730]

These videos are tremendous. The only thing I want to know more about, is, how to build that grinder! I'll be scraping my wood hand planes into flat. One day you'll have to do a series on scraping to square!

[@WeaponsMachinist]

Great video series. I thought of it as a refresher course on scraping. Top Notch!

[@ClownWhisper]

What I did was make a very balanced disc with a 7/8 in shaft to fit in my hardinge high speed lathe it works wonderful it takes up no room. Thank you for the tip on these Chinese discs I will buy some right now

[@gildardo]

Best explenation of how to hand scraping. Thank you for posting it.

[@firearmsstudent]

Can you make a video on how to scrape something parallel and square? (And maybe to a specific angle?) There seems to be a lack of videos on how to do this.

[@woozhi9218]

In guessing you use a very square angle and rub it while the angle plate sits on the surface plate rough scrape it to get the blue cover almost all sides of a certain plane and you find the dark blue ,blue with dark ring,faint blue and ensuring its flatness at the same time

[@aktrapper6126]

Thanks for the video/teaching. I have a lathe I would like to scrape but still have a long ways to go learning how to find high spots and a lathe bed/ways.

[@OldIronShops]

another great video Stefan very timely as I'm about to a tempt to use the 3 plate method to generate a set of small surface plates. probably link to this series . (as well as refer back to it lol)

[@WalterFabian]

Sir, here's another well earned subscriber. Excellent explanation. Thanks a lot!

[@Kvasir87]

Thanks for the Vid. Pretty much the best and easiest explanation i've found so far... I'll use that to show our apprentices. I just dont have the time for it... Danke dafür, Grüße aus Melbourne!

[@MrSeeuu]

Great video. I found this to be incredibly interesting and informative. Thank you!

[@code3responsevideos872]

Such a great video series. I am a total Newbie. I gained a ton of knowledge

[@edwardburgess8440]

Hi Stefan, Excellent demonstration, one for downloading and the reference index.

[@phi376]

Great video! May I make a teeny tiny simple suggestion? I have a few things mounted like that small bench grinder which love to dance around on the bench. That is until I glued some foam computer mouse pads to the bottom of them. Now they don't walk all and it cuts way down on the vibration! P.S. It must feel good to have a master comment on your teaching skills and to be pleased you are sharing this knowledge. Thumbs up!

[@nochan99]

I have a set of questions that might be relevant in next episode: How much material will scraping remove? And how much material is too much to scrape? How would that material be effectively be removed first?

[@johncoops6897]

1. How much material removed depends on how hard you push down, and how many passes you take. 2a. You have taken too much material when you create a low spot. 2b. Or, if you mean how large a surface is too much, then there is no limit however you need to work out a substitute method to determine flatness than blueing, once you can no longer lift the part to the surface plate or visa-versa. 3. Typically the basic surface would be prepared by milling then surface grinding to get it within reasonable tolerance. However if you have patience you could scrape in a rough cast part. A set of cheap diamond plates, a sheet of glass and wet/dry paper or even an angle grinder will get the high spots off.

[@unknownapprentice625]

Great explanation of the differences in the height of spots based on the bluing patterns. Nice work getting it to show up on camera too. Thanks for the video.

[@Ken-f9e]

Very informative video about scraping. Your “shop made” scraper has an overall length of 470 mm. The shank of the tool is 4 mm thick X 20 mm wide. Great information. What alloy is it?

[@txkflier]

Excellent 2-part tutorial. Thanks!

[@sblack48]

Can't wait for the next vid on alignment and scraping square. Thank you.

[@StefanGotteswinter]

Have to find something smaller as a demo-piece, I am not going to square that huge block up just as a demo-piece ;)

[@IBWatchinUrVids]

Probably answered many times, where does someone in the US find carbide in this form to make a scraper? Thanks!

[@dwightbennett3548]

I've watched almost all of your videos, great practical presentation for us new bees. Please keep up the good work. At one point you mentioned briefly that you had scrapped your lathe ways. I have an old square ways lathe Made in Austria in the 60's by Maximat Standard. Can you flatten or scrape the ways without having the lathe surfaced first. If you did produce a video on this process and i've missed it. Please let me know? Again thanks for education.

[@Max_Marz]

The whole video I had this feeling that you had a crest in the middle down the longest length of the part, at 16:58 the high concentration of bluing left to right down the center of the part kinda seems to suggest this, what do you think?

[@strangefruit8776]

I'm really curious to see how you go about alignment. I've heard of step scraping that kind of makes sense to me but not completely. I'd like to get to the point I can rescrape a Bridgeport I have sitting in the barn but I don't have the funds at the moment to get to a class. Thanks for the video man.

[@kennethjanczak4900]

great video Thanks for taking the time to make the video and share it.

[@JB-ol4vz]

Thank you! I guess I'll tear down my lathe tomorrow and scrape the ways. 😂 Happy new year to you.

[@stoparret]

Still quietly and patiently waiting for Part 3 on scraping for alignment!

[@StefanGotteswinter]

Still on my list! :)

[@woozhi9218]

Questions How do you correct an angle for a plane you step scrape it? So how do you use the angle plate to do that Second Can you use negative rake on soft steel or positive rake like how An Engineerings Finding did Third when you long stroke scrape it is the depth of cut almost the same Fourth can scraping get things to their final width/dimension like how lapping does or just only for making it flat and have bearing surfaces only.

[@EPaulIII]

Very good videos. I have seen Scraping Parts 1 and 2. Are there more?

[@chadlooman6720]

I have been working on a Gingery style lathe for some time and this is the best tutorial I have ever seen about scraping. Thank you so much for sharing your knowledge. I do have a question though. When you are hand scraping something like a lathe carriage how do you ensure that the top and bottom are not only flat but that they are parallel as well?

[@mijajajaja]

I love your safety sandals!

[@D3adP00I]

Great video! I'm just learning about machining & refurbishing my lathe. Not ready for scraping yet :)

[@jonathanseagraves8140]

It took me up to 19:19 on part 2 to realize he is saying "valleys." In my head I just accepted that the scalloped low spots would act as a "well" or reservoir for oil to collect and thought a "welly" is a good enough term.

[@johncoops6897]

Yeah, took me a while to work it out. I thought he was saying "welly" which is short for Wellington Boot. We must remember that a Volkswagon is a "Folk's Vaagen" 😃

[@divermike8943]

If I understand correctly this technigue is for sliding surface and the idea is to have lots of evenly spaced high spots for the flatness and lots of evenly spaced low spots for oil and lubrication. Not so much for a reference non-sliding surface. Correct?

[@StefanGotteswinter]

Its also very suitable for non sliding reference surfaces and measuring tools. Wyler for example scrapes the bases of their precision levels via pull-scraping. If you look up Wyler on youtube they have a promo video, where you can see the scraping.

[@petersmith3703]

Very helpful, learning new for me and opens up standards for metalwork - many thanks

[@ryanb1874]

glad to see you also can keep an "Standard" perspective. w your 25.4 mm window. ; )

[@denisxor]

Hi Stefan, could you please do your next video about basics of power scraping!? I do hand scraping quite well. Recently I've got biax power scraper. I found its very different in use compared to hand scraper. And I can't get the quality of my power scraping even close to hand scraping - probably I do something wrong. Your video could help. Thanks!

[@manatoa1]

thanks! I understand scraping much better now. I love your content.