Horizontal Boring Mill Restoration: Milling an End Spline to Repair the Crank Handle
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- Опубликовано: 27 апр 2023
- Horizontal Boring Mill Restoration: Milling an End Spline to Repair the Crank Handle
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All the work involved in making this small part puts me in awe of the original builders of the machine, long before digital readouts and all the modern aids.
and all made in inches. . . .
Hello Keith, I love your channel and the learnings that come from it. The reason I am commenting is to request please, please, wear safety glasses when you are using machines like the lathe and belt sander. You are a mentor for many people and it would be best practice to set the best example for everyone. The last thing we all want is a video lamenting a visit to the emergency room. You only get gifted one set of eyes. Thanks again. Cheers Lodkathree.
Cutting pie pieces with squares is surely a challenge but you got it done!
Today is the day we celebrate the machinist.
Nice work. That is some serious math figuring out the 7 slots and the dividing head etc. Thanks for sharing.
Gotta love the sander power switch without a cover!
At first I thought "why not just cut the handle off, weld on the back of it, and weld the handle back on?" or "why not just make a piece the full length and weld the handle on that?" but then towards the end, I saw that that's steel and the handle is cast iron and then I had a
AH HAH! moment lol. Nice job Keith!
Band-Aid should do a sponsorship of all the machining channels. If they put their logo on the bandages, they'd get screen time in practically ever machining video. 😲
Sir,
you are an extremely clever and skilled operator.
Thank you for sharing.
Nice job on the crank handle. These days it would have to have a spring to push it out of engagement for safety. 100 years ago you were responsible for your own safety.
Keith, speaking of painting your handle yellow, a teacher who taught at the same school as my mom had lost a contact lens on the floor. My dad, some time later, mentioned to her, that if she had painted the lens red, it might have been easier to find.😁
As a European it is amazing that people freely chose to work in fractions; 1" 7/8 ... 47.625mm; and at the same time everything around you is decimal.
But ... why not, it is a free world! :-) Thanks for all the great content!
I was discussing with my wife yesterday about how when I was in grade school (Which would be early 70s) They pushed us hard to learn the metric system because we were supposed to convert to it soon but it never happened. She's a few years younger than me and didn't learn it at all. I liked it and thought it was far easier in all aspects. Guess they figured it was too much stuff to change and too many opposed it.
It's not 1/4 inch, it's 250 thousandths, so we already think in decimal, our inch is our "meter", since they work to the nearest thousandths, they do not have to think in fractions.
Fractions are strange critters if you’re not used to them. Most Americans learned them in the fourth grade so they’re easy for us.
The metric vs imperial discussion is so old and tired. Like 100 years old and tired. When will people understand units don't matter. Any decent machinist should be able to do a job in any unit system. Just get the job done in whatever units you want.
Good lesson on how to make a complex bit of geometry with old school manual machining ! You make it look easy, however I know it takes lots of thinking and time with tables and calculators to get this sorted !
The number of engineering hours spent calculating the dividing head circles must have been massive.
Painting the really useful tools yellow!
Sooner or later you have a workshop full of yellow tools, and you're back to square one.
That was an excellent demonstration of cutting angled splines on the dividing head.
Great job as always, Kieth! It’s fun to watch you do so many non-critical “measurements” in one video.
The issue with the handle not clearing would drive anyone crazy.
It's great when you can identify the problem and make a solution.
That was a hard one to get my head round 😂
Great job Keith.
Thanks for sharing the process.
Can't wait to see the HBM up and running doing the first job.
Take care, Ed.
Wow The way you do math on the fly is impressive Thanks for another great video.
A coat of yellow would match those oiler caps! Nothing wrong with making a tool you're always looking for more visible!
Great machine Keith and a good man operating and repairing it.
How about 4 of these handles around your Lucas…?
Less wear on each, hang them around all sides.
Thanks for your website and all your videos
Thank you.
In order to simplify things a bit, I think I would cut the original sleeve and add a piece in the middle. That would retain the splines you already have, and making it a bit longer would give you room to re-cut the splines in the future if you ever need to.
I think his end result (deeper engagement) was perfectly served by his technique.. The splines already needed cutting deeper at the outset.
Then I would have missed a dividing head lesson! I think the new teeth are better anyway.
I personally agree with you but that would require two welds increasing the likelihood of misalignment. So technically I agree with Silas Marner on this one.
Art from Ohio
But the old splines didn't fit as well, it seems like someone just milled 7 wide slots with parallel sides instead of the slots with 30degrees included angle.
My first thought, but then this channel is about doing things differently with a dash of education.
GREAT JOB, GREAT VIDEO...
Hey Keith nice job this reminds me of making a knee 9 spline on Bridgeport mill Mr Pete had a video on how to thanks . JM
Nice job, Keith. Always fun to see you use the dividing head.
Thanks Keith. Getting closer each step.
I want to congradulate you on your weight loss journey! As you've lost weight it has become more visually apparent. I hope it continues to be a true blessing to give you a healthy and prosperous life ahead!! and as always thank you for the amazing content!!
how badass ts that belt sander!?
You can use it as a treadmill too!
I'd have probably put a close fitting pin through the hole, to keep the two parts aligned, while it was being welded.
I believe he did just that. When he was at the lathe he showed fitting the old handle onto the new end. The end stub acted as a chill ring for the weld.
Thanks for sharing. I was so lost there for a moment but my little brain finally caught up to what you were doing. You explained it perfectly I just didn’t get it, but seeing it made it clear. I had one of those “ that’s so kool moments “
Those increments with the dividing plate! Wow - so impressed with the way you kept track! Thank you for sharing!
Quite a complicated little project Keith. Thanks for sharing and doing such a good job of explaining the math needed. Bob
Yeah, somewhere between math and magic, at least to me it was.
Art from Ohio
I always learn something useful from your videos. Thanks
I love watching as these old machines get put back together.
It looks like your surgery is working well, it's sure nice to not hear you wheezing every time you move. Hoping to have you around a lot longer.
Hiya Keith
That would have tested my brain, I cut wrongly if I have to turn things upside down. I would have had many cups of tea before I was sure what to do. Many thanks for your content, I enjoy watching them even tough I do not often use such machinery.
when you were wondering what the material was on the cylinder part. The sparks from the belt sander would have given a clue especially as they were being ground off anyway.
Excellent job.
Grinder and paint makes me the welder I ain't.
Great video!
Keith, I just LOVE your videos, the production is great. When your vid pops up, I settle in for about 30 min of great stuff at breakfast. I aspire to do the stuff in my shop that you do. Keep it up!
Great video. Thanks!
The view at 2:00 looks like the cab of a locomotive to me. Which tells you all you need to know about how much I know about locomotives 😜
Perhaps another way would be to swing the ram 15 degrees on your mill and offset the table in the X axis the required distance then crank
the dividing head for the 5 spaces.
'inconventional' is an unconventional word. 🙂
Hi Keith, the name of the arm on your dividing head is a sector arm...not sceptor
I would sure need to do a lot of studying to be able to use a dividing head, especially for something like this! Fascinating!
A funny thing about English. When I visited the USA, my host asked me about using the word "gonna", instead of "going to". I told him it's the way we are told in television, haha. Yes, I am Scandinavian / Swedish.
Swedes does not generally dub films, but they are viewed with text or subtitles in Swedish.
An extremely funny example, is in the Movie "Blues Brothers", in German: "Und wir haben Sonnenbrillen !" "And we have sun-glasses". This film was viewed in Germany by a Swede I know. He laughed, because the fun of it got totally lost in German :)
Most native speakers of any language will have shortcuts/contractions to common words and phrases. French even formalizes it. Le + amour == l’amour, vois + là == voilà
Always enjoy seeing your approach to and expertise in solving problems.
Couple of newbie questions. 1. When your talking about taking 0.100 off of the diameter, do you fee in 0.050? Do you do the math in your head or are the lath markings setup to allow for the difference in in-feed and diameter? 2. What do you do with all the chips and shavings? Do you sweep them up or use a magnet or what? By the way love your content. Thank you
That was a great job Kieth thank you so much for taking the time to post
Keith, this was great. I wanna take you out for a burger my man, you ok? Thanks for this.
very nice thank you
Fun project with a valuable end product. Thanks for sharing.
Interesting video.
Thank you for sharing. Very nice.👍
As always, well done, well filmed and edited.
At 27:00, the needed y-offset is R sin(15 deg). If the I.D. is 0.8", then y = 0.4" sin(15) = 0.1035". The other side will be -0.1035".
You can see where the handel was welded. Make new toothed sleeves the right length, then weld the handle back on. Less work, better crank handle.
*handle
i would make the adapter for each shaft with a grub screw to protect the original shafts and to eliminate ware slop
Excellent work, Keith - and a very instructive video. Well done!
Good Morning Keith! 😊
Really good work! Best regards from Dresden! I am already looking forward to new videos! 👍👏❤🛠🇩🇪❤🇺🇸😎
nice work keith Thank you for sharing
Thanks for another steep along the way. Thanks for the effort you put in these videos.
Curious as to why you did not just make a extension on the other end and reweld the handle to it?
Sure but then nobody gets the education on how to actually make the splines.
@@ralphgesler5110 The handle looked like it was already welded on, the splines probably needed to be deeper, just wondering why it was done this way as making a round bushing is a whole lot easier.
He wanted new teeth.
Looks like you got a good 'handle' on things.... 🙂
As always, well done, well filmed and edited.
Just built and verfied a digital control of a rotating table. 7 steps would be no problem as well as the 15 degree adjustments. A little Arduino UNO, a stepper driver and motor.... 39:01
I mean this unsarcastically: You should video it it in action and put it on your channel since I see you do indeed have a channel.
@@silasmarner7586 Thanks! The video recording equipment is either the cell phone, impossible to hold during milling, or a Go Pro hanging in strings, but I'll consider it!
Hi Kieth, that was some dance step with the dividing head. While youve got it set up why not turn another, longer one and make a second handle for the other end of the table.
You're also going to need a longer boreing bar. Josh Tupper at the Tupper engineering site just made a five foot one for his different Lucas HBM. Might give you some ideas.
Regards from Canada's banana belt.
🤞🇨🇦🍌🥋🇺🇦🕊️🇺🇲👍
I’m impressed. A most excellent job. You do excellent work. Good on yuh.👊🤜🤛
I think I would have cut the splines off, weld in an extension, and reweld the existing splines back onto the extension. Mostly because I'm too lazy to figure out how to cut new splines. I am however grateful you made this video incase some day I need to make one from scratch.
Love the Videos Keith. Keep up the good work. Thank you for making the trades great again.
God job
Great job Keith!
How many crank handles would have come with the mill? Three would be useful, one at headstock, one for the table and one for the tailstock end...
Wouldn't have been easier to remove the handle ands add the extension to the back?
Sure but then nobody gets the education on how to actually make the splines.
He didn't want to have to weld onto the cast iron arm. Someone else already did that part.
God Bless you i have learned a lot from your channel still trying to get a hang on the dividing plate turns to degree you know count holes then move dividers thanks keep it up
Yet another excellent video.
Great job thanks for sharing
Thanks!
fantastic keith...thank you
Job well done as always Keith
This is the machine to do that old steam box job, if it's still waiting.
For the algorithm 👍👍
Great work as always. Now, me? Yeah, I would have sat down, done a drawing, sketched out order of operations, gang machined pairs of cog ends, machined new handle shafts and bent them, lathed out new handle axels and grips, put them all together, kept two, offered up the others for sale and used the money to pay for my parts and labor. I admit it, in weird that way.
Excellent as usual. Well done. 👍⭐
Keith, great series, great content. One suggestion, the power switch / contactor on the belt sander has what appears to be open / exposed 3 phase wiring…. Bad idea! I’d suggest a cover plate, before you get electrocuted! Best!
excellent job well done again keith!
right off the bat I'm wondering why you just didn't cut off a handle and add it to the back then rewelled the handle? You save yourself a lot of machining
He wanted fresh teeth on the handle.
I've a small high speed lineshaft driven radial drill that uses similar handles with a castelation...
They were very common...
☹🇬🇧
Make an extra one of those you will need it on a HBM and you are all setup to do it
Love watching you figure out the math and setup of the dividing heads/rotary tables, etc, but wouldn't it have been easier to just cut the splined end off and extend it with some tube stock?
It would be "easier" to not have a hundred+ years old machine to restore! However, restoration is the function of his "Vintage Machinery" shop!!
Back in the day, they must have had a dedicated machine(s) to cut that joint.
gteat job sir
How accurate is this dividing head Keith ????? Keep up the great work Sir. vf
Why not cut the old one off and make a new full length piece and weld it on the handle?
I think the handle was cast and would needed to be brazed on. Probably easier to weld on the extension.
Probably cause the old teeth are shitty and not quite right anyhow
I have to agree. It seems like you picked the hardest way to do this. You could also (gasp) shorten the shafts so as to not interfere.
He did not want to have to weld steel to the cast iron handle. Someone else already did that hard part (hard for him)
As Keith said, it's probably cast iron and would have to be brazed.
Sabe demais
Just remember...a Grinder and Paint makes the welder you ain't. Still weld better than I can...because I can't...LOL. That dividing head job was just ouch...I would have messed that up for sure...LOL.
Unconventional job. I think we're going to see the Coal Feeder Steam Engine getting worked on!!