Turning new Theaded Alignment Pins on the Metal Lathe: Monarch Lathe Restoration - Part 25
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- Опубліковано 27 лип 2024
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I bet the lathe will end up much better than new, if it is not there now. Really like you work!
Thanks for sharing Keith.One step closer.
Watching all these little details come together, then seeing the closing shot of the lathe at the end of each video.. and every time I’m in awe of what a magnificent machine Monarch built. What a glorious beauty of a lathe.
Thanks for the videos Keith ~
I really like that shade of green you put upon that lathe. I now know what color to paint my grandfathers Parker#271vise when I re-paint/ restore it. It will look great in that color.
Merry Christmas to the Rucker family!
Merry Christmas and may God bless you and family. I have enjoyed your gifts of knowledge this year. thank you
Great Job ! Love the way you framed the camera when you made the treads. We could see very well how you ajusted your dept on each pass. Made it very clear and simple to understand !
I've been loving the progress on the lathe restoration lately! Can't wait to see this thing running again!
Great work Keith
Thanks Keith.
Machinist's rule no 10-b: "slitting saws never run true" ;-)
Many thanks for all your very enjoyable and informative videos, Keith. Have an enjoyable Christmas time and a happy and prosperous new year!
One step closer. Merry Christmas Keith.
Thank you Keith! And Merry Christmas to you and your family.
Getting close!!!! Have a merry Christmas!!
Merry Christmas Keith and all Here
Merry Christmas and a Happy New Year to you and your family Keith. Tom
Ahhh I wish I could spend a day in your mind, soooooo much to be learned
Merry Christmas
Merry Christmas Keith
Good job ! Probably several different ways to make those pins . I enjoy watching how you do things . Thanks and Merry Christmas to you and your family .
Happy holidays to you and yours!
Merry Christmas Keith!
GREAT VIDEO !!!
Great job as always!!
I almost dropped my phone trying to help you get her disengaged !
I have been right there, after my heart stopped pounding wildly went right back to it and completed the job.
Again, Great job.
Season's Greetings Keith - thanks for your uploads these many years!
That Monarch is one beautiful machine!
Good job Keith
Looking good Keith. Merry Christmas
Merry Christmas Keith! Another great video of the soon to be like new Monarch !!!
Love your sincerity. Merry Christmas
merry christmas and a happy new year kieth to you and yours
Merry Christmas Keith and Family. Happy Newyear as well!
Keith , Happy Holidays , Looking forward to next years projects Bill
Thank you for sharing Mr Keith . Merry Christmas to you and yours.
Hope you have a Merry Christmas !!
MERRY CHRISTMAS to you and yours, Keith! Thanks for an entertaining year.
Beautiful Job. I love your eye for detail. Merry Christmas
Merry Christmas Keith, and have a Happy New Years, to you and yours!
Nice job Keith, Merry Christmas, Doug
Happy Christmas and best wishes for the New Year to you and yours.
Hi from England
Watching stuff like this makes me think about how when I get to make a start restoring my vintage herbert turret lathe...and a vintage South Bend lathe I've got...
Merry Christmas Keith and your extended family.
Merry Xmas.
Another good one, thanks Keith! I wish you and yours a very Merry Christmas and Happy New Year !!!
Love watching your shows Keith, Merry Christmas to you and your family from Brisbane Australia.
Merry Christmas Keith.
Great job.... Merry Christmas to you and your family from New Zealand.
nice work ,,
Cool vid as always 👍🏻👍🏻👍🏻 Merry Christmas to you and your family 🎄🎄🎄
great to fix one machine with another
"auuuugh........that went too far...."
I'm sitting here opposite a monitor here in San Diego and I felt that panic.
I was already nervous from him running the chamfer tool so close to the chuck. Just when I thought it was safe to relax I heard that.
@@billtheunjust You ain't kidding. I thought we were about to see a disaster. I'm glad he caught it in time.
Yep, threading, or turning, that close to the chuck takes TOTAL concentration! The older we get the slower our reaction times. I'm trying to figure out why he didn't reverse his operation, and put the short threaded portion away from the chuck?
@@MaturePatriot my guess would be that he wanted to do the threading as close to the chuck as possible since the material seemed to want to push away from the tool.
@@billtheunjust Threading cuts should not put that much lateral pressure on the part.
Another little project to tick off the list, the lathe is looking great, almost ready to be used, hope you have a great Xmas, greetings from Auckland NZ.
Very nice video thanks for sharing.
A moments hesitation that close to the chuck......... - Why are slitting saws never concentric? LOL Will the new cross slide nut be an adjustable nut for backlash? This series shows why remanufactured lathes cost as much, or more, than a new one. I would like to have a properly remanufactured Monarch, more than a new lathe! But that's just me. Thanks Keith, loving the series. Enjoy your Christmas, and I hope 2019 brings nothing but good things!
Great clip as always keith. Merry Xmas and a happy new year from Australia.
Those look special to me, the thread is larger then the precision ground pin portion so thought to concoct, hack from another item but nothing came to mind (always try to figure out). Merry Christmas Boy you nearly hit that chuck but being the pro you are you did not all that matters and you regrouped and continued on that is a machinist in my eyes. Nice view shared of the driver slot saw work. They look great installed, happy Monarch happy parts.
Not special- the dowel diameter is smaller that the minor diameter of the threads, so Monarch most likely just made them from 1/2-20 threaded material and then cut a slot for the screw driver. Keith is into originality, but for a practical repair the part could have been made from a 1/2-20 socket set screw and the only machining would have been turning the dowel diameter.
@@oldschool1993 Ok OLD SCHOOLER I am learning here thank you yes Keith is a very big originality his channel always conveys that to us the museum and all as well. I got lost focused on the dowel diameter and failed to look understand undersized means from the use of all thread to create dowel would have played, now I learned to look for it and I thank you for that.
12:48 scared the crap out of me. I thought you were having a heart attack. Glad to see that wasn't the case!!
another great vid Keith a nice way to finish before xmas, hope you and the family have a great xmas day Nigel England
By the way Merry Christmas and Happy New Year to you and your family. I started threading rifle barrels in the late 60.s, learned and have used the same technique you do to thread up to the shoulder or chuck since then. I watch Joe Pi out of Austin, Texas and decided to try his technique running a left hand tool upside down and the lathe in reverse, all other setup is normal. I find it allows me to thread at higher speed and seems to cut better threads in 4140. Love your refurb work and the Monarch machines. Thanks for the many things I have learned.
Source of my habit also. I just feel a lot more comfortable doing it that way. I also just plunge straight in, no 29.5 degree stuff to fool with. That .5 degree error just causes the back side to rub, not cut. The marks on my compound don't have vernier markings.
MERRY CHRISTMAS
I was just about to comment that especially on the threading operation with the auto feed thats way to close to the chuck and then you almost crashed it^^. Still worked out in the end and thats what matters. Merry Christmas yall.
Thank goodness you talk in 'thous'.
I think I would cut 3.5" worth of continuous threads to start and then chop the threaded rod into three pieces, turning the smooth part down to the desired diameter and then parting the pieces off the full rod.
Merry Christmas to you and yours. It looked to me that the shank of that arbor was true and there was enough meat on the body to true the rest of it on the lathe??? I pray 2019 is the best year for you yet!
I just finished an arbor for a slitting saw, the one I have for the smaller cutter is like yours and kinda wobbles, I know you will be happy to get that lathe runnin
Merry Christmas to you keith from scott in england all the best .
merry xmas.....
Thanks Keith; look at the video I can see the part move upwards at about 7.36 any one else see it?
This just goes to show that the small parts are just as important as the big ones.
I often wondered if there was some sort of auto-stop mechanism when you cut a thread. I guess 15:53 answered that.
Depends on the lathe and if you have the option, if you set it up.
@19:00 your arbor might be designed to have run out. so you can take deeper cuts at a slower speed and get it all done in one pass. when the cutter gets dull. loosen the screw and rotate it 1/4 turn and you have fresh teeth.. where if you have zero runout .. all your teeth wear and you can only take fairly shallow cuts. you could have taken the .080 cut in one pass with that much runout. it might be interesting to dive into the books and see if i am right.
Hey K, a quick design notable, you have that red line in your thumbnails and I always have to wonder if I had already viewed the episode. Thanks for sharing your knowledge.
I think I would start with a 1/2-20 bolt to save time
Can't wait to see that Monarch restoration finished.
Did I see some dust on top of it it though or was that just a reflection... 🤔
11:32 - I'd chucked that the other 'way round, cut the threads, pushed it out (the concentricity of 80% threads and the pin aren't close enough to matter) and then cut the pin diameter and parted it off.
Always other approaches...
14:37 - Eleven thou on diameter or radius? Please spec, it helps.
That LeBLOND sure looks great. Who did the work on that? Anybody know? LOL! Merry Christmas Keith! You do exellent work. I have a friend who is also a Scientist, and he also enjoys seeing the results possible from working with his hands. Remodeling and such even as a full time Chemical Abstracts Scientist. Thanks for shareing this video record, I hope to reference it when I get to some similar repairs.
How about making a new slitting saw arbor?
Interesting video, especially thread micrometer. But, would blue loctite be appropriate for alignment pin threads? Also, I see you're not a fan of the 29-1/2 degree compound threading method--comments? Thanks for the great video and MERRY CHRISTMAS!!!
Keith why not machine a arbor for those slitting saw blades instead of buying one I think a lot of your viewers would love this idea as anyone can buy one
I've made some saw arbors myself, they're not exceedingly difficult but they require a time investment. I think Keith just wanted to get this done. In a pinch, we can make our own tools, but you can save a lot of time if you can buy them.
I suspect that Keith has a backlog of work. He's said that he must finish the restoration of the Monarch lathe because there are other projects that can't be done until the lathe is restored.
Thought the same thing, make an arbor with a nice fat shank
If you want precision, you need to dump time in it. As the others said, i don't think Keith has much time, he also has a job and that surely eats time since he's a travelling man.
Video suggestion can you please make a video on when to use what type of insert shape and rake etc ?
while watching the video of the new pins for the Monarch, I also wondered why you aren't going to make a new arbor, and a new collet for the broach for the 1/8th key way.
I think I would have done the turning, parted it off then threaded after turning it around in a .437 collet - assuming that it centered the same the thread would still be centralized on the original axis. Then the thread could be tested as normal.
You have (threading) nerves of steel. I would have done the threaded section first (to the right), and the pin end towards the collet (the left).
Merry Christmas
Merry Christmas Captain. Is any one else distressed that the slots on the screws werent clocked all the same.
I would like to see that also.
Loud in your shop today. Is that the heater and fan?
Think it's motor noise from the lathe.
When not filming, how long did it take to do the lathe work for a part?
Sir using reverse forward switch
And again at 8.06 when using the parting tool the part moves
I can't believe I watched all that machining in real time. Actually I skipped a bit.
what was the vertical deflection at 7:36 ?
12:47 You scared the hell out of me.
Jesus Christ.
I don't understand why a nut would not fit. If the pin can go into the threaded hole in the lathe a nut should fit over the pin.
gday Keith i haven’t read alll the comments so you may have answered this but why not thread moving away from chuck negating the aaughh .....that moved to far ?
Wouldn't it of been better to make all three from the same rod at the same time?
I’m no machinist, but isn’t that slit fouling the threads at the top? Great video nonetheless. Merry Xmas to all.
Keith, it was interesting you ran the threading tool straight in. I was taught to have the compound rest set at 29 1/2 degrees and run the compound rest in instead of the cross slide, taking the 60 degree cut from one side instead of plunging straight in and possibly having chattering if the tool bit. Tom
"Possibly??" I suspect your setting of 29.5 causes the back side of your tool to drag, not cut. Go to Joe Piecynzki's site and tell him he's doing it wrong.
There are merits to both methods. Usually you see the offset method in US shops and 90 degree in the rest of the world.
Blazer02LS , I can sure see where going straight in would make it easier to monitor the dial indicator as you went straight in with the cross slide.
The old machinist that taught me had done so much single point threading at 29 1/2 degrees that he knew how far the compound rest had to go for each thread. I will definitely watch some videos of the straight in method. Thanks and Merry Christmas to you.
Larry Schweitzer , actually feeding in the compound rest eliminates the drag on the backside , but I will check out the other videos that do it differently. Going straight in would for sure make it easy to use a dial indicator to check depth. Thanks and have a Merry Christmas.
its quite idiotic to do the thread like that. You do it from inside out... not the other way around when working so close to the chuck. It's how it's done. This way you risk destroying tool workpiece and lathe... !! Merry X Mas... dont do it like that. So an L holder you flip on the top. Then reverse how the lathe turns the 2PI - thats how you do it. Rotations or Rolls .. cant remember the unit.
Yes, I thread away from the chuck but I'm kind of slow on the draw so ...
It's very rare to see a machinist thread away from the chuck???
@@larryschweitzer4904 I'm doing it in all manual... if it's CNC i do it both ways. I have done all types also conical threads. It's JUST fuck to learn newbies to do it against and into the chuck because IT - ALWAYS ends bad.... inside and OUT never goes bad.
Those from ALAMO knows how to do it... ua-cam.com/video/Z-dqOi_z5bk/v-deo.html
Merry Christmas Keith!
Merry Christmas