Set Your Standards And Never Settle Part Four
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- เผยแพร่เมื่อ 27 ส.ค. 2024
- Following along with some of the special points on a large shaft replacement project, that make the end results worth stamping your name on. Part Four, we lap fit the coupling, test the second insert on a timed self test, then for the grand finale, we set the shafts up in the mill to cut the keyways, followed by a slide show of everything along the way, including some photos of not covered topics on this project. ;{)------
I love the fact that you and people like Abom don't skip on quality because your name goes on it and your pride of workmanship shows in the product love the knowledge and skill that
Lots of time and labor involved with these Keith! Awesome job!
Adam, you and the Keiths (Fenner and Rucker) are class acts in my book. Genuinely nice guys and masters of your trade. I truly appreciate your willingness to share hard earned knowledge and the down to earth attitude that you present it with. Keep doing what you're doing!
Beautiful work Keith....great to watch a working man who has master skills...Thank you for taking us along..
watching the key way cut brought back memory. A local machine shop hired a HS drop out to run a mill cutting keyways. He retired from that Co after more than 60 years. Never knew anything but how to cut key ways on that same old worn out mill.
It's nice to see some people still take pride in their work when allowed too. I always enjoy the videos Keith, hope to see a lot more in the future.
You're spot on about the coolant...
WOW... that material cuts great! I am sure the cutter plays a huge role in that.. Nice work!
Keith, "sliding door indicator" amazing LOL You made my day.
Have done a lot of cutting on stainless,titanium,and inconel when I worked at Boeing using similar setups and a conventional cut. Was always terrified of that first cut that it would pull up.Once in a while I would shatter a cutter. Makes for an interesting recovery cause usually it trashed the workpiece and you had to teardown and start over. The harmonics can be toned down with attachments to the shaft but I am sure you know this.In my current job I do a lot of hand fitting intricate parts with hone and lapping them to .000050 tolerance. The heat from your hand can change the numbers. Everything is measured with air gages and snap gages using ceramic jo blocks to resist heat transfer. Have a laser measurement system but I don't use it. I like the old way better. Good video. Lots of hard work in those shafts if done correctly.
What a great job! I really appreciate the time Vanessa allows you to do what you have committed to do especially knowing how many meals she has had to reheat at times when the push is on, and then on top of it- make these videos. I know your customers do also. Thank you, Ed K. Cleve. Oh.
I bet this channel helps your business. If anyone has any doubt in how well you do your work you can just point them this way.
This channel started because of his business and just grew legs from there.
Hey Keith. I discovered your videos while on vacation on the cape a few years ago. I saw one of your videos where you said you live on the cape. Coincidence I guess. I still enjoy them just as much as I did binge watching them while relaxing on vacation lol. Thanks for the hours of entertainment and the knowledge I have gained from your videos. I am an automotive technician and I find I can apply quite a few things I've picked up from you in my trade.
Great video, one never fails to learn from your efforts to show us how you do it. Just fantastic. Thank you. JD/Missouri
old fashion craftsmanship! nice work Keith!
Enjoyed this series very much. Great ability Keith. You do getter done.
Love the Sliding Door indicator. The methodology of task completion is King. Table of the K&T aligned with the doorway for extra long projects, 'glory whole' for the sake of long shafting in the lathe, etc. Like a well played chess game, many moves ahead. Ke=pp up the awesome work Sir.
On a mobile browser, go to Bing maps, search for Turn Wright Machine Works and select Bird's eye view. The default angle shows a shaft hanging out the sliding door, but I can't tell if it's just hanging on the hoist or lined up on the K&T. :) The imagery is a few years old, since the shelter behind the shop isn't there yet.
That's a lot of work. Great seeing how a true professional craftsman at work sharing his knowledge
Lol. When you are on-camera you're all animated... definitely a California kind of guy. In you comments you are all Yankee... terse and to the point ("couple days"). Those locals are rubbing off on you. :)
I watch all your videos, and that is not because I am into pain, I learn SO MUCH. I want to also compliment you on your video production skills, you are getting good at this.
Your saw is a beauty.
Excellent work as usual keith
Keith it is so nice when I llok for the second time your videos
Beautiful work Keith!
Thanks for sharing
You make it look so easy. Thanks Keith
Great to see a true craftsman at the top of his trade. Compelling viewing, I've just spent over two hours glued to my PC , I've subscribed and guess I'll have to make time for Keith's future clips.
Tricky tricky, the slow motion of the keyway cut was of the prop end. Great vid, keep them coming.
Keith, Your videos are awesome. I watch them all. Learning from you is great, but sometimes it's just plain fun. Keep it up.
Keith, you made that look easy....the mark of experience. I'm sure that experience had a few hard lessons along the way.
Some boats growl and vibrate through the shafting/prop and some are velvet smooth. Now I know why.
Well done sir!
Thank you for taking the time to explain each step. Nice work, you clearly take pride in you craft and produce a quality product. Dave
Love that lathe house. Eternaly grateful.
Keith just awesome the way you make use of what you have
Great job Keith good video!!
The art of machining in action right here
Super sweet job Keith , Thumbs up !
really enjoyed slide show at the end Keith, good choice of music too....Bravo....
Another great series Keith very informative!
Just another day in the life eh? Impressive as always.
Excellent video.
I'm very impressed at how fast you can pull out.
excellent work Keith !
at some point i'm going to have to beg, steal, borrow a lathe again thanks for the inspiration Keith
Man, I don't know jack about machining, but I love your videos. Seems to me it would take some serious cojones to tackle a job like this, not to mention superhuman skill. Just getting that long-dog shaft to spin quickly without whipping around is a marvel to me. Stay cool, Sir!
Nice work! First class.
Phenomenal amount of work Keith - and am well aware that set-up times must be huge. Great stuff. :)
Loved seeing the lapping work!
Keith, I was a bit skeptical about the need to straiten the shafts, because of the extra time. I see though, that by straightening first you save yourself a ton of grief later when you do that work with the other end flopping around on a stand.
Set your standards and never settle!!
"We have already measured 32 times"
I am glade I am not the only one that does that when cutting something expensive.
No joke.... My Daddy always said, "now, what did I just say"? ...Measure it again!
I'd sure like to have an E-stop near that lapping operation. Beautiful work.
Really interesting to watch, cool slow motion, those shafts are a tiny bit bigger than the 25 mm shaft on my boat enjoyed the video 👍😊
25:00 is awesome. It's like a horror film.
Hay Keith it would be good if you had the time to see a few of the boats you had worked on down in the harbour, are your people skills as good as your shop skills ???? i know the hardest part of my job is getting the pricing right and keeping the customer happy, i saw a quote on a van it said "The bitterness of poor quality remains long after the sweetness of a low price is forgotten"
Good quote, a lot of truth to that
Richard Cox another applicable one perhaps " If you think it's expensive hiring professionals try hiring an amateur " I've been told it was Red Adair but haven't checked it. Do love it though.
Robin Grainger: "Quality doesn't cost, it pays!"
dan katla sharpe If you can't afford to have it done right the first time, what makes you think you can afford to pay to have it done again.
gorillaau a fix for a third of the cost could get the boat running for a few weeks to earn enough money to fix it right, or use second hand parts, many times i have fixed rather than replace, most times i try to avoid people on the knife edge of healthy business, unless they are friends i am willing to work with poor materials and parts knowing i will do the job again in the future, but i know i can call on that friendship for a hand in the future, if i don't know you it's not worth even getting the tools out.
as always beautiful workmanship
watching you work is always a treat with a little giggle here and there
i did wonder how you mounted them shafts in your lathe
without bending them while you worked on them
Top notch work Keith. I can c the standards need to b high on a drive like that. Hope there is high standards with the mechanical installation as well.
Hey Keith. 2:00. Stick the part on the shaft. Pad with a thick rag, then bump your hip or hiney against it. Just as much pressure, a fraction of the effort.
I hear french door indicators are great for radius work, but they impart too much smug into the work.
With lots of chatter
Looks like you had to pull another late night. Good video Keith
I think I can do THAT! Great Video
I usually progress the compound slide toward the chuck around .002 thou with each pass when cutting a large pitch thread. There is formulas available that will determine the exact figure, depending on pitch and profile, that will allow you to move tool forward each pass therefore reducing the cutting depth at rear of insert, therefore reducing chatter. ie; a 45° (90° included) thread profile would be an equal value for depth of cut to the figure that the compound slide is moved forward for each pass. Note: reducing the figure, to around 90%, would ensure the the rear of the insert would still clean the back side of the thread being cut.
great vid!
Nice shafting job Keith. You definitely were able to getter done but not without the glory hole ;)
Beautiful work sir. Thank you.
nice trending job i usually get it the first time not! key way cutter looks mean
Awesome job as allways Keith !! I geuss 4 people couldn't get their shafts treaded, the Turn Right way...
Thanks man ! Appreciate that
Nice work!
Incredible. Thank you.
Really nice job. Poured babbitts are cool for some reason or other.
Keith great video series, I followed you from SV Seeker, I wish your videos had been around when I was going to machinists school, I am primarily a CNC guy but I've learned so much from watching you.
the shaft is longer than strictly necessary, so you have room for error, pfiew ! With the amount of work done on the shaft piling up, I was thinking that each extra operation was becomming more and more risky in terms of having to order a new new shaft in case of mistake.
It's true, the stakes keep going up the more work you put into it.
Been watching the shaft straightening videos and then started to watch the African Queen on Netflix, to my surprise, they bent the shaft and broke the prop and at about 1:07:00 into the movie then they straighten the shaft and fix the prop. Fun to see.
Seeing that third shaft I was scared that you had a Bozo moment... glad to see another got'er done!
Nice having a sample to go by or double check areas in question if any! ;{)-------
OK... the unbroken (but cracked) shaft... got it. Customer picks up all three.
Just started watching your vids and they are wonderful. The craftsmanSHIP (see what I did there?) is A#1. The only issue I have was the amount of work you put in along with the cost of the material got me anxious. Then I shit my pants. Twice.
Was I the only one blowing on the screen to help Mr Fenner clear the smoke?
Outstanding!
This Insert you threaded with has no rake i believe. only the holder is tilted in his axis. So the steeper the pitch is, the more likely it will rub on the (left) underside. Maybe that harmonics came from this.
That was a lot of work.
Good amount, would like that once a month, but can't wish that much bad luck on someone else! LOL ;{)-----
More prep time than work time...seems so?
keith great job.
Oh, that nails on the chalkboard sound. Even worse in slo-mo, I had to turn the sound way down during that. Sometimes you can't do anything about it, just install the ear plugs and muddle through...
i did not like the harmonics either.. was thinking/visualizing.. lowering the cutting edge just slightly. i know you know better.. but its just fingernails on a chalk board. also curious. if you have ever tried something like a 180 grit 7 inch long diamond file.. since i got one.. all my other flat files have stayed in the toolbox. i was thinking of when lapping the tapered sections.. might be able to speed up the lathe and take off some of the high spots with it. just a thought.. thanks for the videos.. i worked part time on a friends 104" stevens brothers army rescue vessel that had been converted to a dive pleasure boat.. had to redo the bottom and the twin 3" probably silicone bronze prop shafts.. each one was 30 feet long with a coupling in the middle to make four 15 footers. 32x28 3 bladed props. a strut and then a V strut on each.. took a almost 2 weeks to get the shaft logs in and get the struts installed and aligned with the shaft logs..
Another finely crafted job complete. I presume since you fitted everything nnow all they have to do at the shipyard is assemble?
Nice work! I bet with the metal and labor, that cost the customer a couple hundred bucks! :-)
Hi Keith, watching You Tube for 2 years this single point thread cutting was the best, the cleanest, the easiest threading I have seen. Great job, terrific video, work of a true pro in every ways. A question: I am guessing that your horizontal mill is a 40 taper machine; am I right or wrong? I love that mill and if it's OK with you I would like to mention it when I introduce my small 30 taper mill, but with your permission only. Thanks for that threading again. That Old Bob
all I can say is freakin awesome!
hehe the second last pic is totally Tin Tin!
Hi Keith love your videos. You mentioned the material the shafts are made of I would like to know more.
Google Western Branch Metals ;{)-------
1. :)-- Seeing your video as I comment. Like your style of machining, and enjoy the vids. Greetings from the fjords of Norway :D--
Sandvik. Qaulity! From... :D
Sweden ;)
Close enough for the girls I go out with :O
I´m working at Sandvik in Sandviken ! I cut the steel strings on continuous casting 81.
The sound the keyway cutter makes is very eerie. Is he alright?
I'd love to have a few feet of the old broken shaft to play with on my lathe!
The marina took back the used shaft! ;{)------
Heck, even the drop offs from those shafts would be excellent material for us hobby shop guys. When I had my mini lathe, almost all of my material for projects came from 3" to 6" ish long drops from the scrap bin. Chris
Could the old shaft be used to make a shorter shaft for a smaller boat? If so, I hope that shaft gets recycled, instead of getting melted down as scrap. Chris
im enjoying your videos and thanx for sharing them ehhh
Could the shaft be slightly harder on one side from the other? The "singing" seemed to pulse in time with the rotation (judging from spots on the shaft and the live center). Heat treating such a large object must have some variations at times.
0.310" adjustment with a chain-fall; I love it!
it was most likely runout from the cutter itself, maybe rubbing
If that is a TNMG insert I don't think you have enough side clearance for that thread. That might be what is causing the vibrations.
Hello Keith, Very interesting project. A couple of questions. When the shaft is hanging in a sling and the table slides isn't it transcribing an arc as it moves which would mess up your horizontal set up on the table and the cut?? Also do you ever do your thread cutting from left to right when you are up against a tight shoulder with reverse rotation and the cutter turned over? I was watching Joe Pi's channel and it seemed to take a good deal of the stress off. I am sure a lot of it is what you are used to but as a neophyte thread cutter I am wondering which method to favor. I am wondering whether it makes a lot more difference in tolerance of fit when the shaft is carrying maximum torque as opposed to one that is not being stressed to a very high percentage of its rated load? I had never seen a prop lapped before in many decades around the water but most of my experience has not been with boats carrying extreme loads on the shafting. So this is very interesting for sure. Take care. Doug
I have been wondering for some time I have never seen this done on sailboats, should they be lapped and all this good stuff too? I would think you should but wonder why the yards never seem to go into that much detail.
That is a combination of a few facts, between the minimum HP of drives, workmanship expectations for dollars by the marina and the squeaky pocketbooks of owners not ready to pay for extras that may not need to come into play. Not just blow boaters, a good percentage of boat owners don't think much near or below the waterline until something happens, yet if they would do shaft checks and maintenance on bearing and packing, a lot of savings and problems that can be fix, fixed. ;{)-------
Well thanks for the reply, I guess if I ever end getting a sailboat again I know who I will be calling :) hehe
One thing I have never been taught is what RPM to run at when threading? Obviously the faster the RPM the faster the feed will go to maintain the correct threads per inch. IN CNC we always run a real slow pass to make sure the program is right then we go to max rpm (1200) on our lathe. What is the correct way to determine the RPM for thread cutting both manual and CNC?
Well I would say look up the speeds and feeds for your material, cut by your bit style and then proceed up to that with the speed of safely getting it done, if you can't keep up manually, don't go there. ;{)------
You run manual lathe as fast as you can control it (stop it and not crashing into shoulder for example). Second thing is lathe condition, so you don't want to stress ("jerk") all gears, lead-screw, etc. That's why you should operate in lower range of RPMs. Third factor is a thread finish - in new, rigid CNC this is first thing you care about. So in manual world it's a compromise (surface finish, thread geometry, lathe wear, and danger of crash). "Ideal", theoretical, calculated RPM is more suitable for CNCs.
Keith great video series, I followed you from SV Seeker. I wish your videos were out there when I was going to machinists school, I am primarily a CNC gut but I've learned so much from watching you.
Hi Keith, I love your video's thank you so much for producing and posting them. I appreciate that marine shafts are probably available in a vast range of diameter's but I wondered what spindle bore you needed for the shafting work you do? Presumably you only need sufficient distance between centers for turning the tapers? Best Regards Sarah
Watching you work is fascinating. I wonder if you notice that younger folks don't seem to "set their standards" very high or is that just my grey hairs talking?
Wonderful series . Great editing and production.
one question, what is 'spooning the key' ... ? certainly sure I don't want to guess the answer.
Thanks very much for the inspirational work and standard. All the best Mat
I cleaned up a response from one of the viewers and pasted it here for you. ;{)------
1. th-cam.com/video/_J_d2IcBecI/w-d-xo.html
2. www.bertram31.com/proj/tips/spoon_diag.gif
3. 3.bp.blogspot.com/-DKZe2L7l3TA/UTtIoeURHxI/AAAAAAAAC9w/jND_5zN5u2U/s1600/section+through+propeller+hub+at+centerline+of+keyway+showing+shortened+keyway.JPG
Read more
smashing, thanks for the reply, never seen a spooned keyway until now. guess I should start going back through the archive videos. All the best Mat
So what would be the total time per shaft to complete a job like this? and great work by the way. ;-)
couple days! ;{)------
great job. how did you arrive at the cutting feeds and speeds and single cut depth for the keyway? do you surcharge in the winter time for loss of heat? have you ever built one of these shafts without the k%t? setting up on a bridgeport even with an angle head seems like a nightmare to me thanks for all your hard work, and looking forward to the next video.
I run at the speed and feed of my pocket book for buying those wheel cutters and I have set up and ran shafting on a bridgeport , Sharpe and or Lagun mills, with 90 degree head, if set up is tight they do better than one would think. ;{)-------
I missed where you cut the .75 / Foot tapers. I've done a few, but thought viewers would like that. And spooning the keyways, which is a bit of an art form. People look at a new shiny shaft and focus on that, asking why do you do that?
Since the wheels were slipping on the tapers, did you have to do any clean up to their bores or is the lapping enough?
Thats what the lap fitting was also taking care of. ;{)-------
Would a machinist jack under the taper portion help eliminate some of the harmonics when cutting the keyway?
sometimes it helps, ;{)--------