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- เผยแพร่เมื่อ 26 ส.ค. 2024
- Instagram: mr_crispin
In this video I show a variety of work related to the manufacture and installation of 4 oil nipples. I also complete the assembly of the slide bars by assembling components that I have made in previous videos.
The lathe shown is a Myford ML7
Thank you for making these videos, I now for the first time really appreciate the difference between studs and bolts. Also, congratulations to your whole team!
I should point out that most studs are not designed woth precision location in mind as often they are intended for a clearance hole application. It's just that when chosing what custom fasteners to make I happened to choose studs to base them on.
@@MrCrispinEnterprises In your opinion, are Shoulder Screws equal, less than or better than at achieving the fastening and locating function in assemblies? Making shoulder screw assemblies is one thing, but I don't know if its a good thing to let the same screw also act as a shear pin (the way a dowel pin does) in a screw/bolt assembly where fastened components are subject to relative sliding forces because of machine operation.
I think a shoulder screw would have worked well in the application I showed here. It would give all the same benefits. The only down side is it would have taken a bit more making as you would have to machine a precise diameter plus the threads and plus the head.
As for using them generally to replace the cap screw / dowel arrangement I'd only do so if space is an issue. Typically you only need two dowels per component to align things meaning that you only need two precise holes. With shoulder screws used in the fashion you are suggesting ever hole would have to be very precise.
@@MrCrispinEnterprises You are right in the last line that it generally amounts to using an over complicated process, and it probably only makes sense to use it where there is some other constraint like space. I had once seen an application where there 2 fastened parts which had to be relatively located and clamped, but because of size/placement issues, it was difficult to turn matching male/female alignment diameters directly into the parts, so a bolt pattern was used in which only 2 holes (made deliberately a little offset from the rest of the pattern) used shoulder screws to align and fasten whereas the rest of them were ordinary screws in clear holes. Conventional usage doesn't allow fasteners to be used as shear resistors, but I really wonder what happens in a shoulder screw setup where you have a more complex interaction of tensile, compressive and shear forces along different sections of the material. I've not known shoulder screws to be rated for a combined shear load when there's tensile load on its threads, but using them for location will invariably result in such a stress condition.
I hardly can figure out how I managed to get by with out that weekly portion of bone-dry humour for so long. Thanks for the inspiration as well.
This country needs loads more of you and your team, well done!
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I worked at Rolls-Royce in engine development at Derby for forty years, on the site over the road from from Mr Crispin's as it happens. I worked with many people like him in my time there, and consider myself highly privileged to have had the opportunity of doing so.
You have inspired me Mr Crispin not for the award you have earned nor for your machining skills. But I am inspired to use my brother’s toothbrush for cleaning my work.
Thank you again I know he will appreciate my efforts on cleaning
Beautiful assembly sir! Also great lesson on production / fitting. And huge congrats on that award from RR. Has to be a real honor!
OMG, how was this not suggested earlier by TH-cam!! MrCrispin is marvelous!!!!!!!!!!
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Congratulations to you and your team. Thanks for all of your videos!
Congratulations on your award Mr Crispin. Great to hear you are involved with RR apprentices, you are an excellent teacher. I have learnt a lot from your videos. Thank you.
Thanks. The little tinkers do their best to run me ragged.
Apprentice Master in a RR factory.
I could only have wished for such a teacher.
Very smart of RR to have recognised his aptitude.
Congrats on the award, I'm sure you have earned it!
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Congratulations Mr Crispin and the rest of your team! That is quite an honor from RR. It's often very hard as a humble men to be willing to let others know how successful you and your team really are. 👍👍😎👍👍
Ok... 25 comments, and not a Single one about filing right or wrong.....
So...... thats showing the deep respect for a Master!
Good work!
I did find rod interesting. You are one of the few where I can sit and just listen to your stories and interesting conversation. I’m not interested in the build (this time) yet I’m still watching the videos. You have a very good way of explaining and I always feel I get something from your videos. Thank you for that. Some of my fondest are with the optical comparator and grinding tool bits. I constantly go back to videos featuring those. At some point I might remember something and not need to step through the details of grinding!
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Congratulations on finding the award and winning the parting tool!
I hope you were able to get your head safely out of the garage and in to your house.
You’re humour is stellar, Crispers! Not to mention your intellect, and you thoroughly deserve to give yourselves a pat on the back, as proud Brits! As you were lad, , get the Tetleys brewing! 🤣🏴
Many thanks
Yorkshire Tea!..
@@alstonofalltrades3142 Yorkshire gold is the best tea!
Tetley is also a Yorkshire company I think.
@@judeskye7124 Here i am preaching Yorkshire Tea and Ive never tried gold!
I have been secretly yearning for this video for years now but never thought it would ever happen.
Had me wondering if we were to learn it was too cold in the shop. Very good explanation about the stud use! Congratulations to the team!
Congratulations on your team's award. I have seen pictures of the stained glass window many times over the years. If I am remembering correctly it is a tribute to the Merlin Engine and the pilots who won the Battle of Britain.
Kevin Sutcliffe! There's a blast from the past, we worked together during the days of Gubb & Hauff. Over 20 years ago. It's nice to know that people are still around and thriving 👍
A strange coincidence I will relate......as you are involved with production of the jet engine turbine blade manufacture in Rolls, back in the late 70's I worked for a firm F.Mc Braida located in Bridgeyate Bristol and we had a contract to make/produce at first hundreds then thousands and eventually millions of plugs from Nimonic alloy wire to seal the ends of the turbine blades after they were investment cast......the turbine blades were investment cast hollow with 3 holes in the ends for venting and these were plugged and Tig welded closed.......I was entrusted to make a press tool to make the plugs after our resident toolmaker became ill with heart trouble and after much R&D on the tool eventually it worked and produced plugs at the rate of 8o per minute for 8 hours at a stretch.............I left the firm in 1981 under a cloud to emigrate to OZ as it was assumed I would be there for life and emigrating to OZ seemed like a betrayal of trust as far as Mick Mc Braida the boss was concerned, as he never spoke to me again personally until the day I left.........laughingly, a week before I was due to leave the manager, Tony Gower, informed me that I would not be getting a pay rise as it was deemed that I had lost interest in the work I was doing.......I just have to wonder if Rolls Royce collapsed in fits of agony when I left.
Probably!
Most interesting to learn of your work with RR and the award for it. Your team deserves its day in the sun. The illustration of your pre planning for machining and assembly is almost as clever as finding your fixture and lost parting off blade.
Laughing my head of at the first minute, then swelling with pride for the next 4. Congratulations on being a proper Engineer.
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What an honor to be a recipient of such a prestigious award and at such a young age. Your country is lucky to have you. I’ll think of Mr. Crisspin whenever I see an aircraft powered by RR engines. Congratulations and thank you for posting such entertaining and cerebral content.
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Congratulations Mr., that award was well deserved I have no doubt! As for your slide bars, they are very neat (of course!) and pretty. I liked the reverse screw fixing, nice touch! Your apprentices are lucky!
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To win an award in a highly regarded institution like RR is an incredible feat! Hearty congratulations!
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Nice to see the slide bars coming together exactly as I would have expected. Beautiful work.
Man, you are such a great speaker.
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The main problem for anyone working for Rolls Royce used to be that in the cities that they have production sites in, they were usually one of the biggest employers in the area, so everyone local knew at least one person who worked for them. This meant back in my day, every time it came up that you work for them, you invariably hear back something like "Oh. My uncle Terry works there. Do you know him? Tall bloke. Wears a boiler suit and a hat. You can't miss him". Most people didn't realise that RR might have had 5000 people working on each sprawling site, and you probably only knew 50 of them by name. :D
Yes that is still the case. Plus people asking if you get a company car!
@@MrCrispinEnterprises Oh, the bloody RR car related questions. I forgot about those :D
Do BMW now pay the quid a year to use the name like Vickers did?
No idea but there were some rangerlings a few years ago over weather or not the aerospace business could use the original RR logo as apparently it belonged to who ever had the car company. I think it's settled now.
Sir congrats on the award at work and its interesting to hear about your life outside the shop which is never a dull moment. I really look forward to your utube videos that gives great insight into being a better engineer by thinking outside the box to improve processes of operation. Thank you for your time in sharing and the content always brings a smile to my dial.
Thanks and good to have you watching
Congratulations! Finding that dropped parting tool must have felt good. :)
Congratulations to you and the team. Yes I agree with the method used it allows for a perfect fit up.
The sheer amount of nose breathing in these videos gives me hope that Britain may be Great again some day! Bravo, sir Crispin, keep on being your slightly eccentric,yet brilliant self!👌
Congrats to the team for keeping up Royce's standards!
It shows in your work at home as well.
John, Australia.
Congratulations Mr C. It's a wonderful thing to be recognized for your work. Cheers
Wow just wow. I wish I'd had the opportunity to work on similar stuff. I have a degree in Mech Eng (retired now) but spent most of it doing computer system engineering. Always wanted to do the real stuff. Circumstances made me have to handle the computer stuff because no one could do both ends. Love your videos. Best wishes.
Thanks for your comment
I love the fact that you use proper units for your diagrams!
Congratulations to you and your work team at RR! And thank you for the videos. I am a retired mechanical engineer here in the States but only recently began to make stuff with my own hands. You explain things the way I "get", not just the how's but also the why's that direct the how's. The idea of the threaded dowel is brilliant and I expect it will find it's way into a model steam engine build in my future. Best regards!
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Thank you for your shout out from the whole Sir Henry Royce winning team. See you this afternoon for another fun day at RR 👍😁
What a magical and unique presentation (and speaking) style you have. Plain, technically knowledgeable, and good lightheartedness. First video I’ve seen of yours but I’ll now binge your catalog.
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Evening Mr Crispin. I managed to find you organically on TH-cam but I realised in earlier videos we are on the same payroll (and possibly site too). Congratulations on the Sir Henry Royce award!
I’m thoroughly enjoying your videos. They gave me the final kick I needed to start producing my own, so thank you for that. Nowhere near as refined as yours but time well spent none the less.
Good to have you watching
Congratulations to you and the rest of your team. Innovation must be difficult in such an established industry especially where people's lives are at stake when using the final product.
I always felt a sense of reflected pride when boarding an aircraft and seeing the Rolls Royce logo on the engine cowling.
Well done Cris, well deserved award, and excellent fitting techniques.
Regarding the fitting techniques.......can you remember who taught me them!
I congratulate you and your team on the award. Nice to hear a company can still show their appreciation.
I was wondering at the start if this was going to be X rated and see you take off your shirt.🤣
Thanks for sharing! Great award. Project is coming along well.
Well done on the award Crispin, please pass my regards onto the 'one off' good to see him looking well! Thoroughly deserved I am sure. Great outcome on the slide bars. Cheers, Jon
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16:07 you can also get shoulder bolts that have a "dowel" section, threads, and a head
Yes good point
Inspiring, both the model engineering and the work ethic
Love the "engineering" solution of "I can't make two parts the same, so here is what I came up with."
Congratulations on your award Mr Crispin.
Everybody needs to learn to blow their own trumpet (a little) because if you dont probably no one else will..
Very interesting video with a alot to learn from..
Enjoyed your explanation and detailed demonstration of the threading head.
Dowels must be accurate, but when using threaded studs the base material thread accuracy and mating stud thread accuracy could not match a reamed hole and a precision dowel..
Yes indeed.
Double entendre is the backbone of British humour. I would like to see you produce a feature film called Carry On Machining! Great video as always.
Good idea!
Well Done Sir Mr. Crispin
congratulations on the award MrCrispin. Hope there's meany more to come tor the team. The stem engines coming on well. Thanks.
Well done on the RR award and also on the dowel locators to ensure better alignment. It should go without saying that torqueing down in a cross/diagonal fashion would ensure proper assembly of parts.
Congrats on the award to you and the team! And to you on a successful pair of nicely benippled slide bars
never knew you work for Rolls Royce. now feel a bit more confident traveling by plane. well done to you and the team for the award....
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Congratulations Crispin and very nice work indeed👍
Congratulations on receiving such a prestigious award , very cool !
Congratulations on your prestigious award. The cream always comes to the top and your associates and you have reached the top.
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Excellent work on the award Crispin. And I'm very pleased you're posting regularly now. I've been back through your channel and watched from the start, and enjoyed every minute. Can't wait to see more. Cheers, Craig
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Mr Crispin is my favorite comedy channel.
Your videos are fascinating, and remind me of Nevil Shute's excellent book, Trustee From The Toolroom. Though that story was set in the 1950s, quality machining lives forever.
I'll have a looks!
Congrats on the award. Another great video.
I really didn't know what I was in for, Mr Crispin. I am happy with the course you took.
And congratulations on the Sir Henry Royce award
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An adherent of the 7 P’s philosophy I see… good man! 👍😄
Thanks for another excellent video!
Congratulations to you and the team! I worked for a company in Houston Texas that built two motor/robotic control centers for Rolls Royce. I am wondering if you work in the factory that these buildings went to. They were 60 x 60 feet and I forget how much they weighed but they were both put on one plane and flew to Germany. Amazing!!!
I don't think they came here to where I am but sounds interesting
@@MrCrispinEnterprises Ok, thanks for the response.
Mr Crispin, with your undeniable prowess with hat throwing- and deadly accuracy, may I say- have you considered a career as a Bond villain? Asking for a friend…..🤣
Bond used to throw the hat aswell!
From one of your main competitors in the jet engine space (GE), congratulations and well done.
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Mr C, congratulations to you and your team on the Royce award. I'm assuming well deserved or RR wouldn't have awarded it.
As to the rest of the video, two locational operations I've seen in car engines is the use of a bolt within a machined tubular locator and shoulder bolts into a counter bored hole that achieves the same locational function as a seperate pin or dowel.
Thanks for the rousing military music.
Regards from Canada's banana belt. 🤞🤔🇬🇧🕊️🇺🇦🍌🇨🇦👍
Thanks for your comment
United States Marine Band
Congrats from Vancouver Island fellow turbine guru .
another amusing and interesting video, and congratulations on the award and recognition at work.
Congratulation's on your Teams award... A lot of our planes I work on have RB211's. A great motor other than the Bleed system. The person that thought up the PRSOV and location should reconsider careers. Love your videos!
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Brilliant and hilarious. Love it!!
Entertaining, informative and engaging! Your presentation style is getting better and better - thank you so much!
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Rolls Royce have always been at the cutting edge of engineering. From the early days of piston engines up to the first jets. The incredible Olympus in Concorde. The RB211 and now the Trent. Also watching with interest the SMR rollout which will hopefully stop all this stupid renewable expensive energy that doesn't work when you need it!
Also Rolls Royce are backing Reaction Engines - let's hope Britain builds Skylon one day!
Evening Mr Crispin 🤠 Congratulations 👏🏻 on you and your team’s award 🥇 It goes without saying it’s well deserved 🤩 I just love watching you make things with absolutely fantastic explanation 👍🏻 I only wish I’d of listen at school and come across somebody like you so could I could of leaned something instead of driving a lorry for the past 40 years plus 🙄 Take care cheers Stevie 😎
Glad to have you watching
Never too late. I went to university when I was 45, gained a degree and changed jobs to become a teacher for 15 years.
That is an absolutely beauriful build, and a very nice fit. I'm glad you splashed out on those double doors; you should feel proud of that work 😁
And congratulations to you and your team. Sounds like that award was well-earned 👍❤
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Fantastic, congratulations to you and the team!!!
Another spot on video Sir, and sincere congratulations on the award at work.
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Great work, slide bars look immaculate 👌
A point of clarification Mr Crispin,
I agree with everything you said in your video, it's was spot on, and I'm sure you are aware, however it wasn't made clear and is a frequently misunderstood subject, so a little more on what was left unsaid...
A clearance hole in a part through which a threaded fastener is placed is not responsible for holding the position between two parts.
A dowel pin placed between them also isn't responsible for holding the position between two parts.
A properly designed bolted joint will hold its position as assembled regardless of the clearance allowed around that fastener and one using dowels will continue to hold its position even if you remove the dowel after assembly.
The purpose of a dowel is to aid in the precision alignment of two or more parts during assembly and only during assembly.
The thing that keeps the alignment of those parts fixed is the clamping load applied to them by the fastener and the friction that exists between the parts as a result.
Take for example the bolted joint that retains your car's wheel to the rest of the vehicle. The layman may assume that the studs and nuts used carry the shear forces the vehicle places on that joint however in reality they should be subjected to no shear load at all in spite of the massive shear loads that joint is subjected to.
Instead, the 5 class 8 bolts often used apply a clamping load on the wheel of around 20 tons, the friction that generates between the face of the wheel and the hub carries all of the shear load the vehicle can generate during normal use.
As an asside, cars also use a second method of precision alignment of a bolted joint, that being the conically shaped bottom face of the nut and matching feature in the wheel. That in itself is a remarkable piece of engineering given its simplicity, repeatability and ease of manufacture.
Good point and well clarified, I would still say however that bolts in clearance holes or dowels are responsible for the position of components. It's just that once you tighten the bolts up and the assembly is finished you are entirely reliant on the clamping force of the bolts to maintain the position. Cheers
Learning all the time thanks for sharing your knowledge Mr Crispin 🦘👍
Brilliant and well done. Congrats on the prize I am sure it was well deserved. Thanks for the little tips too.
Good work, well done. Also, understandably big headed.
Congratulation on your achievement
Congratulations!
Excellent piece of engineering Mr Crispin.👍👍
Interesting vice you were filing on there, could we have an introduction to it please? Well done on the award to yourself and the team.
Yes indeed
@@MrCrispinEnterprises I'd like to second that request for more info about your "form-fitting" filing vice, Thanks in advance.
I agree. What vice is that?
18:24 british dry humor competing with an supposedly even dryer alcoholic beverage. This resulting in the aforementioned visual and audial happenings leaving me in a slight sense of joyful sense.
congratulations on your award and thank you for the video.
Dowlbolts should serve the purpose very nicely.
Yes just a bit more involved to make!
Well done on your award👍🏆
Well done Crispin Dude on the teams award... Thanks for the vid. TFS, GB :)
This Old Tony had a machinists vice with a jaw that rotated much like the one on your bench vise - somehow fascinating to me. I guess I'm easily fascinated. ):
eight and a half units? what happened to the other three?
fantastic video - thank you!
Congratulations! Excellent work on the award.
Toutes mes félicitations. Merci à Vous pour vos excellentes vidéos.
Mr. Crispin's naughty bits.
Full frontal nudity (know what I mean, say no more, nudge nudge) lol
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Now there's a title I did not ever expect to see!
It's always cool when "I did x to make the next step easy" and then the next step is actually easy.
Congrats on your achievements!
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