Lucas Horizontal Boring Mill Restoration: Finish Scraping the Bed Ways Co-Planer
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- Опубликовано: 19 янв 2023
- Lucas Horizontal Model 31 Boring Mill Restoration: Finish Scraping the Bed Ways Co-Planer using the Machine Table.
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How to say you're a machinist without saying you're a machinist: After many hours of scraping, blueing, printing, using multiple reference surfaces and instruments measuring to tenths of thousandths, getting two pairs of 8' long surfaces flat, straight, parallel, etc to each other "I'd say within a thou, or a thou and a half is good enough". "Good Enough". The machine being more accurate than it's ever been in its life, including when new is described as "Good Enough" to a machinist.
Keep up the great work Keith, love the channel. :)
I have a friend that opened a shop back in the early 70’s right out of high school. He bought all of his first machines at a government auction. They were all built in the early 1900’s but they were all brand new never used. They were all packed and preserved for long term storage by the government in an underground storage facility in the central part of the country. He is still using most of them today. A cool little bit of history.
This is my soap opera, every episode we're closer. Seeing this old beauty getting ready to work metal is a treat.
Also love that you said, “tur kite,” that’s how I got taught. Now I have been corrected by a fellow saying, “tur sight?”
Keith, you rock! 20 years ago I almost hired onto a major manufacturer who had the most amazing machine shop with the largest machine tools I had ever seen, they indicated their machinists could rebuild their own equipment. They were masters of the trade, from that exposure, I held them in the highest respect……you are doing this on the side! Deep bows, amazing work!
One of the things (just one: there are many!) that really impresses me in your videos is that you have the skills and knowledge to know When To Stop. 'Is this good enough?' is a question I never feel comfortable with when I'm making something, and I'm never dealing with the kind of tolerances you do. Watching a pro is so rewarding!
Keith GREAT job scaping it in, the level of flatness and alignment is amazing. my question is after all this scaping is the new surface still level, as when you first installed the machine? Also, you did not address if it is parallel with the head, or square to the vertical ways. Thanks
Thanks for bringing us along on this big scraping job and explaining each step as you go. I’ve been a machinist for many years and heard the term “scraping” but until you showed us how it’s done I knew very little about it. Long job but the results should justify the many hours spent.
Great precision work!
You are also looking slimmer and healthier!
Great stuff as always! Getting everything Co-Planar is key! As you said, it's probably going to be more accurate than it was when new! Amazing the things we can do with modern technology that they didn't even dream of when they first built these things! Keith Fenner 3D printing parts out of metal for his lathe restoration et al. 😁
I would say that with everything that you have done to this machine that it far exceeds the spec’s of when it was brand new, Keith you sure know what it takes to restore a machine back to the way it originally started out!
Good to see you back in the shop recovered and working Keith..
Nothing beats that feeling where you put the Biax down happily, and not from exhaustion! So much job satisfaction when you get it
*Co-PlanAr
Thanks for the content Keith
Great job young Keith. 👍
I notice your apron fits much better.🤣. Well done.
I can't believe the things I'm learning with this man . These videos are pure gold .👌👌
Good morning Keith, time for a cup of coffee watching some scraping 🙂☕
Great episode Keith! One more step in the journey to back in harness and working. Thanks for your explanation of what you are doing and why.
Great work with plentiful amount of time to true up the entire machine. Thank You, Keith happy to see you in the shop..... :)
I've been using acrylic blue for some time now. I use about a spoon of paint to a tea spoon of water to dilute it and it works pretty good for me. No established brand, whatever i find is good. Removal is done with water and mild nettle based liquid soap. I scrub the surface with one of those bathroom scrubbers and then remove it using my water enabled shop vac.
Superb, as usual Keith..👍👌
Great project. I can't wait to see it run. Thanks.
Thank you for sharing.👍
Oh, Keith - It is DEFINITELY better than new. 😊
Better than new - who can ask for more? Way to go Keith!!
Very very nice work!
GREAT JOB, GREAT VIDEO...
Nice work Keith, thanks for the lesson.
Thanks for sharing.
Keith,
I really enjoy your videos! I know the end products of manufacturing, but my knowledge of the machines that make the parts is not as good. You provide excellent explanations of how machines are made and how they function.
As for scrapping, I remember a physics demonstration or lab experiment in which two highly polished surfaces were brought together. The force required to separate the two was incredible. Scrapping and lubrication allow surfaces to move relative to each other. You provide real world examples of these properties.
Thank you very much.
Bob
Awesome progress, can't wait to see it back together and working!
Great video Keith, keep'um coming..
Nice!
Tons of work!
Looks good
I love this type of content
Nice! A very satisfying episode!
You make it look so easy but to have those huge ways be THAT flat across the entirety is really quite impressive. Seemingly impossible!
What patience, a fantastic achievement Keith 👍👍👍
looks like there is a good plan
Very nice Keith.👍👍👍👍👍😀😀😀😀😀
Congrats, long job done well.
THANKS KEITH
Nice!!
Mill is going to be top notch! rebuilding the spindle to make it tight will be interesting.
Very interested video , much better then sending it off to get done . You are getting it done
Nice results ! I am looking forward to seeing her backup and working!
I am hoping you have fully recovered from your malady .
Nice job Keith. Your probably right, the ways are in tighter tolerance than when they are new. Thanks for sharing.
Good
Awesome video as usual. Cant wait for all the exciting project to come on this cool machine. All the best from Denmark. And by the way you are looking great Keith!
Hiya Keith
Great work. I came across a video on Facebook which show the manufacture of a large bandsaw, similar to the one the you are restoring, they were using some very old planners and I thought that this would be some that you would enjoy.
I thought from the beginning that when this mill restoration was finished. The refurbished machine would be better than the day it was made.
Your going to have a nice boring mill when finished. In a shop I worked we cut Prussian blue with alcohol and applied with a roller like your using. If you run out of spotting blue give it a try. Only down side is the short application time as the alcohol evaporates.
I see Starrett makes machinist lay out dye, “Kleenscribe”.
NOTHING LEFT TO CHECK!!!! Tom Lipton would be moon walking the ways with a micrometer in both hands and feet giving us the meatloaf metrology on every atom of that thing……😂🤣
Nice. How about the optical tools for the surface plates to check for wear.
👍
Great vid Kieth .. your looking in grdst shape u-self ! .. Stoker update ?
Thanks for posting I always enjoy them and learn something new.
How did you determine how to level the machine before you got started?
I remember you used an optical collimator on the metal planer. Were you planning on doing a check with it on this machine as well?
Keith...I'm curious if this machine has a 'tail stock support's to hold in alignment a very long boring bar?
I just watched a video called the science of flatness. What you doing is amazing to me. What is "turkide" (SP)
Keith great job I would like to make one suggestion to you that is that you ought to figure a way to Mark what you did in 2021 and 2022 so whoever gets this machine after you get it they know you did all that just a suggestion alright this is Bob from Vero Beach Florida God bless they say stay warm and have a great week
These videos already evidemce the restoratoon facts better than any marks or notes could.
I'm thinking that your resolution may have even less variation if you used a 3 or 4-inch gage block.
😀😀😀😀😀😀😀
I would like to know how the installation of the bed affects co-planarity. At some point if the slab moves, or the machine is moved, how do you get it back to perfect again, and, how do you know that your current install isnt throwing the flatness or coplanarity out of spec? When youre dealing with such tiny dimensions, how can you be sure sag or something didnt introduce error? Lot going on here, maybe I am over thinking it.
Co planar
Is this the machine you are going to use to machine the bottom of the stoker engine for the steam locomotive?
WOW! Keith, you look great…how much weight have you lost so far?
Like no. 2
more than adiquaite is thar better or worse than close enough Keith?????
Keith, I would really like to see you start taking this seriously and get a bigger straight edge… 🤣
What about the sides of the ways? The should have the same amount of wear on them.
Yes, they have to be scraped flat and parallel
What’s up with the steam stoker engine? Did y’all give up on it?
The Turkite will be on the bottom of the saddle, correct?
And who say "nice job" about it maybe don't know well what is the Art of Scraping.This is just a Art of RUclips followers.good view
I wonder how thick the trukite will be, you took 0.008 off the bed and maybe 0.008-0.010 off the saddle. That means that the trukite is only going to be 0.016-0.020 thick,, I'm I wrong?
👍📐⚙️⚖️
It seems strange that most of the scraping is on the part of the ways that would have seen most wear.
Kieth, boy you have lost weight! I hope it is due to diet that your on!
Why is it necessary to scrape the ways coplanar, surely it isn't too dissimilar to a lathe bed or grinder ways (not at all coplanar)? As long as the bed ways are parallel, would it not be easier to scrape the table ways to match? I can see it might be useful for setup measurements or leveling, or just so you know it's close to perfect!
Friction is calculated by the coefficient of friction of the material multiplied by the force, which in this case would be the mass. The surface area in contact is irrelevant to the calculation. Oil retention is certainly a benefit of scraping vs grinding, but reduced friction is not.
@@ralphgesler5110 Keith stated that less contact area equals less friction. That is wrong,.
@@jeffreylee7184 I agree with everything you wrote, but it is a little off topic. Keith said that scraping reduces friction because there is less surface area. As you pointed out, surface area is not part of the equation. Lubrication is irrelevant to the point I am trying to make. A scraped way vs a ground way will both have the same amount of friction. That is true if they are both oiled or dry.
Please explain why you used the table from the machine to blue the ways instead of using one of your many cast iron references.
Keith already explained that the top of the table, now upside down, is true and flat and is the best reference to use to blue up the ways.
I thought this technique is called hand scraping…
Starting to look skinny (I mean Keith, not the machine).
This video is for find many likes on RUclips.How you can look is not so good,also because he have some more alternative for finish scraping thst.Maybe he was lazy
You have some big plate,some straight edge,also i think you have a precision level and autocollimator but you did it for finish scraping the slideways?is no sense mr.Keith,im sorry to say that but this time you did a mistake.Please next time think well how to do before you share a video