Another good one. Glad you mentioned kerosene for lubricant for Aluminum, lot of people do not know that. Cheers
@claycarnes76099 жыл бұрын
"More than one way to skin a cat" was one of my dad's favorite sayings. He was a tool maker all his life. Thanks for the videos.
@AmateurRedneckWorkshop9 жыл бұрын
Great video. The method you showed did the job as well as you could ask for but I am sure the milling attachment will make it even easier. Thanks for the video.
@RyanWeishalla9 жыл бұрын
Now that is one good way to skin that cat. Thanks for the good explanation on getting the depth of cut figured out.
@mrpete2229 жыл бұрын
+ILGopher Thanks for watching
@PlantAcorns9 жыл бұрын
I am repairing an old South Bend Serial #828 made sometime shortly after 1910-11. At some point in its life a woodruff key wore out and it was replaced by a set screw jammed in through the other side of the gear and into the shaft. Getting it out normally was not possible so I had to drill it out and weld up the damage. Once I get the rest of the lathe up and running I will likely be using your method when I make the new shaft. Thank you for helping me with this particular head scratcher.
@mrpete2229 жыл бұрын
+Gingerly glad I helped
@johnstrange67999 жыл бұрын
Wonderful bit of practical ingenuity. Thank you for building it to show us.
@ErnieNoa39 жыл бұрын
Nice set up using the lathe!
@garyc54839 жыл бұрын
Another excellent tutorial. Most ingenius. Thanks for sharing. regards from the UK
@tombellus89869 жыл бұрын
Nice video Lyle, have done that several times on small shafts. Thanks
@mikeadrover51739 жыл бұрын
Well-done Sir, enjoyed. Mike A. Drover
@shawnmrfixitlee64789 жыл бұрын
Good lesson , Thanks Lyle !!
@mrpete2229 жыл бұрын
+ShawnMrFixitlee Thanks for watching
@lewismcclain89579 жыл бұрын
Great video and a good tool to have in the box.and always in my seat on the front row good day in class
@TheTreegodfather Жыл бұрын
This is absolutely excellent
@68sweetnovember9 жыл бұрын
Excellent. Well explained. Very useful....Thank you.
@miguelcastaneda72369 жыл бұрын
great video nice improv....thanks again
@1musicsearcher9 жыл бұрын
As always, very informative. Thanks.
@dcm77777779 жыл бұрын
can you use the other end of the bar for another size? 2 for 1
@jaynegus45269 жыл бұрын
I can personally relate to the task of the woodruff key and it's battle against the forces it must endure and it was a learning experience that stranded me out in the boon-docks and forced me to walk home and abandon my motorcycle due to the failure of a woodruff key. 25+ years ago I purchased what was advertised as a "flywheel weight" for an off-road/dirt bike I owned at the time. This " flywheel weight" directly attached to the existing factory flywheel which increased the rotational mass of the flywheel assembly. The manufacturer of this accessory claimed it would make the power delivery/powerband more manageable resulting in an easier to ride motorcycle. The manufacturers claim was true - The flywheel weight( it was probably around a 1/3 increase in mass) really did change the power delivery characteristics and I was now happy with a motorcycle that was really too much for me to begin with ( this was a Kawasaki KX-500). The flywheel ( which was part of the magneto ignition) mated to the crankshaft on a taper and was locked in place by a woodruff key( a small, weak, undersized woodruff key). The accessory/aftermarket flywheel weight with it's extra mass proved to be too much for the factory woodruff key to withstand and it sheared many times. The external taper surface of the crankshaft( as well as the internal taper surface of the flywheel) was never damaged and I simply kept replacing woodruff keys until I gave up on the flywheel weight and eliminated it all together after which I never had any problems. At one point I tightened the flywheel nut to a point well beyond the factory torque which did not stop the shearing problem. Those stock/ factory woodruff keys were about 1/8" thick and about 3/4" long ( they were actually metric though). The entire fiasco was a big waste of money, a big waste of time and all I got out of it was a big headache.
@mrpete2229 жыл бұрын
+Jayne Gus Good story, Yes, it was undersize for the weight & it became a shear "pin". Thanks for watching
@petee7169 жыл бұрын
Great video and very informative as usual. How do you determine whether to use a woodruff key versus a straight key in a particular application.Thanks
@PlantAcorns9 жыл бұрын
+petee716 I have always been told that woodruff keys are easier (read cheaper) to install when you want to maintain concentricity of a shaft, as well as offering a sort of mechanical fuse service. I think there is something about being mainly for light duty and tapered shafts in the Machinerys Handbook, but I can't provide the reference for that. Mr. Pete could probably give us the page number from memory.
@timhyatt91859 жыл бұрын
always wondered why they were called "woodruff keys"...thanks for including where the name comes from.... two questions: are they intended to shear off should they reach some point of torque the way a shear pin is intended to do?? other question: does the carriage have any mechanism for elevating the workpiece, allowing you to mount the stock horizontally and engage it from below the cutter? (or is that something that some lathes might have and others would not??)
@brosselot19 жыл бұрын
I will use this to repair a couple of shafts I have Thanks
@felixcosty9 жыл бұрын
Just wondering about woodruff keys. The pulley in the video had one set screw pushing down on one end of the woodruff key, would that cause the key to rock in the key way and help lock in the pulley. Would be nice to know why you would use a woodruff key verse a straight key. Thanks for the video always like to see different ways of doing things. Have a day
@experiencingtechnicaldiffi51849 жыл бұрын
+E Hiebert A properly located Woodruff key is centered under the setscrew and doesn't rock. The setscrew will bite into the key and as the the key can't move axially the pulley stays in place and won't drift as sometimes happens with straight keys and vertical shafts or axial loads. On your drill press make sure to push the key down before you tighten the screw when aligning the pulleys so it says where you want it. Woodruff keys are usually used on shafts subject to cyclic or impulse loads because the deeper engagement won't allow the key to rock and work loose. They are also used where axial location is predetermined, like flywheels, but not on most motors and shafts where location or alignment may vary. Also on tapered shafts a straight key seat is more difficult to cut where a Woodruff key seat is a simple plunge cut. Mike (o\!/o)
@felixcosty9 жыл бұрын
Thanks for the info Have a day
@kevinwillis91269 жыл бұрын
thanks again sir for a great video...
@jason-ge5nr9 жыл бұрын
she sure didnt like the steel. would slower rpms allow for cutting thicker key seats? or would it just buck and chatter at a lower frequency?
@experiencingtechnicaldiffi51849 жыл бұрын
+Albion Laster Since the cutter was trying to lift the carriage off the ways a slower speed would have the tendency for you to load the cutter up more and make it worse. You could cut on the back side and push down but then you can't see very well. Or you could use a left hand cutter like the one he had on the bench to cut down and in front but those are not very common. Best to just wait and see the next video where he uses the milling attachment. Mike (o\!/o)
@zyzzy19449 жыл бұрын
I have a question for you... What is the purpose of the chordal depth when cutting a woodruff key? Thanks, Jack
@experiencingtechnicaldiffi51849 жыл бұрын
+zyzzy1944 Chordal height or "M" factor applies to all key-seats. Since the strongest straight key joint has the parting line at the middle of the key and that point is below the top of the shaft the chordal height must be accounted for when calculating depth of cut for different sized keys. And since a Woodruff key must also fit a broached or cast key-way, projection will also be 1/2 key width. Mike (o\!/o)
@zyzzy19449 жыл бұрын
+Moholo 88 Now I understand. Thanks.
@elsdp-45609 жыл бұрын
Thank you for sharing.
@Dm65-gpy5 жыл бұрын
I really wanted to see how to use the atlas milling attachment
@mrpete2225 жыл бұрын
Yes thanks
@geoffreyabegg97919 жыл бұрын
Another good video Mr Pete, thanks. There's more than one way to skin a cat, and a s Jed Clampett would say, the cat does'nt care for it much either way!
@mrpete2229 жыл бұрын
+geoffrey abegg thanks for watching--I liked old Jed
@kevCarrico9 жыл бұрын
another great video -- thank you! the phrase was originally "the proof of the pudding is in the eating" -- but why get technical?
@Tensioner8 жыл бұрын
Someone probably already said this but I always thought plated key stock was so you could 'fit' them. Same thing as oversized. Guys where I work hate the stuff but a little rubbing on a file is all it takes.
@jcs63479 жыл бұрын
Lyle, thank you for this video, I learned a lot! I have a few questions please; Were you feeding the cutter by hand? It was really too smooth to determine if you were or not; You mentioned that you would limit the cut to 1/4" on the poor man/economy method, can you please explain why?; What type of cutting oil were you using for the mild steel cut. Thanks Mr. Pete! I look forward to your videos every week; please keep them coming!!
@mrpete2229 жыл бұрын
+JC S By hand. Pipe thread oil
@robmckennie42039 жыл бұрын
Why is it that when someone mentions something to do with safety in the comments, they get all this hate, "safety nazi", all that, but when tubalcain prefaces every single video with a title card instructing you to do X and Y to be safe it's totally cool?
@Askjerry9 жыл бұрын
I'm pretty lucky... I have the milling attachment. Actually... I think I have all the attachments... taper, grinding, etc. I have two lathes... one in great shape... the other not so much. Going to convert #2 into CNC.
@mrpete2229 жыл бұрын
+askjerry Hi-You have a great shop--I saw your vids.
@jeffmoss269 жыл бұрын
nice video.
@mrpete2229 жыл бұрын
+Jeff Moss thanks for watching
@Joepopa129 жыл бұрын
With those tolerances you could prolly make a jig to cut these with a drill press.
@experiencingtechnicaldiffi51849 жыл бұрын
+Joepopa12 Rare is the drill press that would be rigid enough to mill a key-seat satisfactorily. The bearings are meant for thrust not radial loads. There also are no ways to feed the cutter with. So a jig would just be a milling attachment, marginal at best. Tolerances are the same for all key types of the same size. Mike (o\!/o)
@Joepopa129 жыл бұрын
I understand the load on the bushings bearings would not be ideal and agree with you there but it would not be hard to make the jig feed the stock.
@johnfithian-franks82769 жыл бұрын
A much better way of making the clamp would be to add a second "Tee" to the top piece so that both pieces would be clamped in the vice, this would negate any side to side movement.I hope you understood this as I am not a teacher of the same standard as you and find it difficult to explain in writing.Regards John
@PeterWMeek9 жыл бұрын
If you wanted to cut the keyseat in a longer shaft, you could mount your shaft holder on top of a block with a clearance hole through it and using a longer bolt. Then you could mount a shaft up to the length to your overhead clearance. Size the block to put the shaft clamp just about as far above the cutter as it currently is below. Longer than that and you will either have to take the lathe outside or tip the lathe so the shaft can be horizontal (kidding of course)
@mrpete2229 жыл бұрын
+Peter W. Meek GOOD IDEA
@111fishkiller9 жыл бұрын
The N in Mr. Woodruff's name stands for Newt,which was my Grand dads name. Newt Woodruff was my Grandfather,on my Mothers side.. WN Woodruff was my Great Grandpappy.. Born in Milton Pa.
@mrpete2229 жыл бұрын
+Fishkiller 41 Very interesting--he was a smart man
@111fishkiller9 жыл бұрын
+mrpete222 I think he just had a great idea to solve a problem he had.Deciding to patent it,was the smart thing. Many of us have had ideas others have capitalized on,i'm sure you have Mr.Peterson.
@MyHeap9 жыл бұрын
Great demonstration Mr. Pete. Thank you for making it. By the way, I notice a LARGE discrepancy in the numbers used for the machine shop tips. Are you holding out on us addicts or have you yet to make the missing videos?
@mrpete2229 жыл бұрын
+My Heap Holding out-there are 40 vids in the can
@davidsnyder20002 жыл бұрын
A little late but it’s called a “set screw flat” on that shank. What I was taught anyways 🤷
@250kent9 жыл бұрын
Thanks much teach
@jwills86064 жыл бұрын
When I was a yute way out in the country, we always called them "Jesus keys." You'd go through the process of rebuilding an old car engine, and then when you were putting on the crank pulley, somebody would invariably go, "Oh Jesus - where is that key?"
@Guds7779 жыл бұрын
next show us how to make your own keys...
@ladefreakndah9 жыл бұрын
You can get 100pc of 3/16 x 3/4 Woodruff Keys for 9 dollars on ebay.
@cojones85189 жыл бұрын
Google Books has pretty much the entire Popular Mechanics online, except the recent years. books.google.com/ search for Popular Mechanics. You can also search by year (ie. popular mechanics 1943). Try searching for Machinist too, several interesting things come up.
@TheHelado367 жыл бұрын
Why use keys??? It looks like a weak point! Why not just do a design like we see in front wheel shaft endings?
@thetoecutter136 жыл бұрын
TheHelado36 it is designed to be a week point. The key breaks if overloaded instead of damaging other components like gears or shafts. Lot easier to change a key than replace the shaft.