Metal Planer Restoration 47: Scraping the Dovetails on the Clapper Box Cross Slide
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- เผยแพร่เมื่อ 22 พ.ย. 2020
- Metal Planer Restoration 47: Hand and Power Scraping the Dovetails on the Clapper Box Cross Slide of off my 1890's vintage New Haven Metal Planer. I show how to scrape both sides of the dovetail flat using the cross slide as a standard on one side and a straight edge on the other side. I also show how to measure the parallelism of the two dovetails using gauge pins and a micrometer.
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Keith, Keep-em coming....we gain more knowledge and entertainment in 20 minutes watching your videos than 20 hours on network TV. There's a lot to absorb on scraping and each episode has something to offer or re-inforce....Thanks !!
Scraping is an art which is somewhat fading amongst the machinist community. For those of us with older machines, these videos are crucial. Thanks, Keith!
Your one of the few people I know who make scraping by in life interesting for the rest of us. I cannot wait to see the machine in action.
Scraping's the reason I'm watching. These vids are priceless.
Please Keith, NEVER apologize for what you are doing, you are the BEST on TH-cam. We Love It All!
Good job Keith. Each episode gets incrementally better than the last one. And they're all good. I look forward to the day when the planer begins making restoration parts for another vintage machine.
First video of yours that I’ve watched. Excellent teaching and demonstration. I’ve been blessed with 20 years of CNC machining. I’ve always been amazed to watch occasional machines being tuned up. Can’t wait to see more of your videos. Thank you.
Keith don't listen to him every time I watch you scrape something I learned something and yes anyone who's dealing with these old machines or has one and wanted to run true should know how to hand scrape and being as you know how you have shown us a lot thank you for the video find him very interesting love to see more
There really aren't that many scraping videos on actual machines. Please keep them coming!
Thanks for all the scraping videos! I worked as an apprentice in a machine shop student job. I always wondered and admired the scraped ways of our lathe etc. Now I know why and how they were manufactured and admire them all the more!
As others are saying, I love the scraping portions of your videos.
In a modern throw away world you are teaching an old fashioned skill and without that skill, these old machines, many around 100 years old, would become Toyotas and the skills and machines would be lost forever. Keep up the videos, scraping or otherwise.
I once ran the oldest brown & Sharpe screw machines in the country back in the 90s and the company had them scraped then! Still put off perfect parts! !!
Can't imagine why anyone interested in machine tools downvotes your scraping videos, Keith. This is a highly valuable skill to learn!
There are allways nay-sayers on any popular video. Personally, I only give thumbs up for things I like, like this, or I do not care to down-vote.
My thoughts are that we are watching the entire restoration of the planner. Scraping is an important part of that process.
Skipping steps just does not feel right.
I like seeing all the "bites out of the elephant".
Keith always gets a like from me. If I watch the video or not he gets a like. Same with Mr pete. We are very fortunate that these guys share there secrets with us.
@@dougmilley2480 Its more like elephant with hollandaise .
What you actually do, is that you show just how much work there is to take on a project like this. And there will always be moments that might not be the funniest in the world. Still, they are very important. So even though I also think there are a bit too much scraping now and then, it is actually what makes all the work realistic. And that, in turn, is the main reason why I watch every video you send out, Keith.
Keith I don't care bout how many time ya do videos about scraping. every time ya have one of them I learn something new. I wish that I could afford ta take one of the scraping classes but I live on a fixed income. so I'm teaching myself form yer videos. Thanks for the the great information on too of them.
Richard King would be proud. He wants us to share our knowledge. More scraping videos!
I like the scraping videos. I appreciate what goes into it, and I learn a little bit each time.
I watch every video because you know things that I don't and you teach well. That's the beauty and gift we get from people like you providing viewers like me with high quality FREE content.
Keep 'em coming. One day we might have gained enough courage to take the plunge ourselves!
I like the scarping videos, I learn some new things and best of all it is free. It really takes a special person to complain about free content)))).
I thought I had a pretty good amount of patience but, if i was tasked to do this, I would have to drink to be able to make it through this job. I'm envious of your patience Keith!
I look forward to watching every one of your videos Keith
Watching you handle the Biax brings it all back. A fabulous machine.
I wish I could afford to own one
Always excellent content on your channel. It’s not your fault if people don’t skip over a video they don’t like. One of the problems on TH-cam is there is so much fluff and little high quality technical content.
That planer is going to be a work of art by the end of this.
Hi Keith, I was in the Windex splash zone during your scraping demo at the Bash. Thanks for the re-fresher course - great stuff!
I really enjoy the scraping videos, if people don't like them they don't have to watch them!
Why the heck would people complain about getting a FREE insight into the single most important thing in machine accuracy?
Yes exactly. Richard King charges quite a chunk of change for his scraping classes!
I will never own a machine, let alone be a machinist. I watch the ones where new things are being made from scratch, appearing out of nowhere. Significantly less interested when surfaces are being sub-mini-micro-optimized, in multiple near-identical passes.
@@Digital-Dan But the sub-mini-micro-optimized is what allows you to buy the finest auto you desire. Without the super accuracy, our lives would be very lousy.
Because it's nothing of the sort, and even if it was, Keith has covered the subject MANY times in the past.
In thinking about what most influenced machine accuracy, I'd suggest you look at the influence of rolling-element bearings as opposed to poured babbit bearings.
PS: I've been making chips for quite; the first lathe I could use in the early '60s was a flat-belt drive, with babbit bearings in the head stock. It was scraped on nearly all surfaces but If you wanted accuracy, it had nothing to do with the scraping on any of them, it had to do with *your* ability to predict the outcome of the cut depth, the RPM and feed-speed, the edge on cutting tool you ground and several other issues.
My newest lathe has rolling element bearings on the head, and even if the ways are not scraped, it is far easier to find the dims I want with this one.
Hey Keith. When my wife walks in on me watching one of your videos, she always asks, "Are you watching that ancient tools guy?" I had told her it was the Vintage Machinery channel but it became ancient tools guy after being processed through the wife translator ;-) Thanks for all the videos! I'm not tired of scraping videos.
That's pretty funny! Gave me a mental picture of flint knapping or Neolithic spear construction! 🤔
@@danielabbey7726 And there's probably videos for them on YT as well!
I might have to reconsider the name of my channel now!
I LOVE these scraping videos!! It's so satisfying, and the finish makes me salivate haha
Almost the first thing I had to do back in the 60s was scrape all the old messed up stuff in the shop....by hand! I do appreciate seeing it done right!
I love your scraping videos. It's howl to scrape different objects that aren't just a straight edge and how to keep things coplanar, perpendicular, etc... that's what makes it interesting.
I had a friend whose father was a scraping specialist. Most of his work was done at customers’ shops. He bought a new Lincoln Town Car every other year...paid cash.
I've learned much from these scraping videos. I try not to miss a scraping video.
Keith, this is looking good. Before too long you'll paint & finish your final assembly and hopefully set up a small line shaft to be powered by one of your "hit & miss" engines. ;) Another thumbs up!
I learn something everytime i watch, thanks keith!
Enjoyed Keith!
ATB, Robin
clicked 'Like' before even watching - always know it's going to be good. Wasn't disappointed.....
Very informative. I think the cradle is a great idea and makes what would have been a very awkward task much easier.
Interesting process. Thanks for showing it. 👍
Scraping is honestly the coolest bits for me to watch.
So many amazing tools within your reach, but yet they atill can't reach the same level of precision needed to keep the tools working.
Always learn something from watching you, Keith!
Thanks.
Keith: Did you see the video of someone who made a power scraper out of an old "Sawz-all?" He modified the stroke and did some other mods to steady the blade. He says it works great. Thanks for the video. Jon
I'd love to scrape my old Bridgeport ways in. Scared I would end up doing more damage than good. Guess it comes down to building up enough knowledge and skill on smaller projects to eventually take up the task.
Buy or download a copy of "Machine Tool Reconditioning Book - Edward Connelly" or "Basic Scraping Modern Methods" or if you really want to go deep "Foundations_of_Mechanical_Accuracy" shoot me a message if you cant find them and i'll hook you up
I would have to say that there isn't enough scraping videos, and a little more detail about it would be great!! Thanks Keith
MORE scraping please!
Don't apologise for a scraping video, by showing us what you're working on shows us what it takes to restore these old machines. Thanks for sharing
This is essential learning... I always enjoy watching your scraping.. I watch and see where your patterns end up and then I make a decision while watching to see if it matches up with yours...
This is valuable knowledge..
Keep them coming Keith .
Keith, one complaint: Not enough scraping videos!
Just kidding, I'll watch whatever you do, keep it up, more or less scraping as you see fit.
Excellent work .
I learn something new everytime I watch your video. Great stuff.
Looking forward to the next one.
Keep safe.
Firefighters meet their match when a fuel tank crashes and explodes. Watch the story unfold in this full episode: aetv.us/NightwatchS1E2
Personally, I get tired of the scraping videos... BUT I enjoy the entire series, and OH, if I don't well.. I watch something else! I don't whine about it. Keith is essentially making a huge hunk of ugly lawn art back into a working precision device! Keep it up dude!!
Not boring at all,you have given me the confidence to scrap the dovetails on the compound on my Boye' & Emmes lathe it has the same issue as the clapper box you're working on.Thanks for the video.
Been waiting for this. Scraping another instalment of the planer. 🤗
very good video..thanks for your time
Always happy to watch, including scraping videos!
Love watching your videos
Keep up the scraping, Keith!
We want more scraping videos!
One step closer to chips. Keep up the good work and thank you for making the videos Keith.
Your skills are amazing!
HEY KEITH! you make the videos, I will watch them! :-)
Thank you Keith. Fantastic demonstration.
I like watching the scraping videos.
Nice work Keith...
Shaping and scraping my favorites...
Take care
Paul,,
What sort of animal doesn’t enjoy watching any video Keith makes? No matter what it is, watching this skilled craftsman do anything is amazing.
Nice job Keith!
Getting so close!!
Good stuff. Thank you.
Thanks for sharing!
Since I started watching Keith’s scraping videos, the Biax power scraper retail price has quadrupled.
I have had a lot of people tell me that. I am just happy that I bought my Biax scrapers before the prices went through the roof!
THANK YOU...for sharing.
Happy Thanksgiving from our house to your house
Well said sir
I likes scraping.
You are Excellent never apologize we learners more thank
With respect to the parallelism of the dovetails being measured across gauge pins, whilst the sides of the dovetail against which the pin bears have been scraped flat, does not the condition of the other bearing surface, the underside of the cross sllde, which I don't recall being so scraped, affect that measurement? Let me hasten to say, that I'm no engineer, but appreciate the obsession with precision, even when it seems to be unnecessary in a machine with large reciprocating masses and seemingly comparatively coarse results that will require further fettling. Thank you Keith for your informative and entertaining videos.
Teresa, I have the same concerns. You are correct in suggesting that the surfaces adjacent to the angled dovetail will influence the measurements across the pins.
To explain the phenomenon better, imagine that the adjacent surfaces contain hills and valleys. The hills will raise the pin, thereby causing it to touch the dovetail further outboard, resulting in a wider measurement.
Conversely, if the pin rests in a valley of the adjacent surface, the pin will contact the dovetail surface lower down, and thereby be nestled further into the V-shaped crevice. This will result in the pin being further inboard, and hence yield a narrower measurement.
You are correct both sides would impact the measurement across the pins. However the other surfaces were already scraped true. I think you underestimate the accuracy of this machine once its completed and operational. It will be able to hold a tolerance much better than any milling machine Keith will have access to.
Yes, it matters. In the case of this video, the bottoms had already been scraped - it was done in a previous video and both sides were checked to make sure that they were co-planer to one another.
Hello Richard, That's my impression, certainly, but perhaps Keith had already scraped that surface way back last year, in that frenzy of scraping eighteen months or so ago and I'd simply missed - or more likely - forgotten it ... Mind you the surface didn't appear to me to be that precisely finished - though as I said, I'm no sort of an engineer, but do enjoy his videos.
Good morning Keith.
Love the holder you came up with. I have a hendey lathe that I would like to do this to in the future. If I can find the time that is
dovetail, in germany we say "Schwalben-schwanz" = swallowtail
In Finland it's lohenpyrstö or salmon tail
I wonder what other countries call them? That’s really cool you beings
@@MF175mp Also in Swedish: "Laxstjärt" wich means "Salmon-Tail". The Salmon-tail is more or less triangular, where most fish-tails are not, for most of them, if not precicely all, got a more concave trailing edge at the tail-fin. It is an unusual trait among fish, however more common among birds. I suppose one culd say Doves got a more or less triangular tail like Salmons.
I understand completely why Germans calls it "Swallow-Tail" and not "Dove-Tail" or "Salmon-Tail". It is just a different way to see it, geometrically.
Scribe an unvisible line between the points of a Swallow-tail, now you got a triangle, thus Swallow-tail. Actually The German word might be more striking in this case, since the material more accurately resembles the real ting.
However, Dove-Tails or "Lax-Stjärtar" in the woodcraft, includes shapes that physically resembles the tail of a Salmon, or a Dove, mirrored in the material, quite accurately.
These shapes are more or less the same, triangels.
It's swallowtail (coda di rondine) in Italy too
And now we are learning even more, what a concept. watch videos, learn things.
Scraping it off, here boss.
Scrape it off there Luke.
Show us whatever you want. Personally, I don't find it terribly distressing to fast forward or wait entirely for the next video. There's always something interesting around the corner. I'm a big fan.
i just happened to think, how about making a good demonstration video on sharpening a scraper tool. Converting an old file to a hand scraper, would be nice too.
Thanks
Must of been a big lunch to get a bite out of an elephant LOL
You made a few scraping videos, I've enjoyed them. It's like some people watch football or basketball games one after the other like it was interesting or fun even, I dont get it but I got lots of things I can watch. :-)
I would like to see this machine up and running.
good things come to those that wait
Great
Even a scraping video can be interesting but it's all in the editing.
Scraping can be boring to watch if the viewer is left to watch the same repetitious action for too long.
Everyone wants to see results after seeing enough of the process to understand it.
They want the instant gratification of that magic editing time jump.
I hope the metal planner is operational till Christmas 🎄😁
Hiya Keith
If you - like (Thomas) me - wonder why the measurement with the gauge pins is sufficient for proper spacing of the angled dovetails - go back to Keith's "Metal Planer Restoration 42" video where he scrapes the horizontal surface parallel to the crossslide. This ensures that the gauge pin method always references on the same horizontal level and the dovetails indeed get parallel - at least that's how I understand it, but i am just an EE :)
i see i'm not the only one with sewing machine light in the shop.
No such thing as too many scraper videos, in my humble opinion.
For some reason Keith, after watching the first few passes I get the vision of Richard King walking up behind you going Cluck Cluck Cluck! But I know you are removing material, however it did not look like it on camera. Anyway it looks good and should work great! getting closer to commissioning day! That should be fun. Cheers
Question Keith: Can you please show the gibb scrapping? I am not sure how you would make both sides parallel since I am not sure how you would do it. Thanks,
GREAT JOB, GREAT VIDEO, NOW ( LET'S GO TO WORK )...
Please make a video on the tip on your hand scraper. How can I get one?
Man a biax really speeds things up :P