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Pistons and Rods Part 2 

MrCrispin
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29 окт 2024

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Комментарии : 128   
@TangentJim
@TangentJim 4 года назад
Mr. Crispin -- Parting off using a drill -- sweet move . Two thumbs up .
@bobvines00
@bobvines00 4 года назад
I think I read about doing that in one of GHT's books. But it's definitely something that I need to start planning on doing in my workshop.
@catabaticanabatic3800
@catabaticanabatic3800 4 года назад
Hahahaha. "My Brother's toothbrush" hahaha,superb. Splendid video.
@yambo59
@yambo59 4 года назад
Watching your attention to detail is a real pleasure.
@stumccabe
@stumccabe 3 года назад
Excellent tip about not changing the position of the centre or chuck when withdrawing the tailstock. And the "parting off with a drill" technique - another excellent tip!
@simpleman283
@simpleman283 3 года назад
OMG did U learn something? You are willing to share with us. So sorry to be a bother. good day...
@cncshrops
@cncshrops 4 года назад
I'm no numpty in the machine shop, but I am so grateful for your sharing of titbits of, well, 200years worth of Machine Shop wisdom. I didn't know they still taught this stuff in the UK. And it's all so reminiscent of the Model Engineer magazines I grew up with. Quite a different flavour to the (esteemed) US machining channels. Thank you.
@lwilton
@lwilton 4 года назад
I agree, Mr. Crispin has a most excellent channel. I am always impressed by what I see. If you don't already follow it, you may also want to look at Stefan Gottteswinter's channel.
@millomweb
@millomweb 4 года назад
@@lwilton Let's have a 'recommend a channel thread' ;) In my case, I'll suggest Blondihacks - it's an awful lot better than it sounds !
@dalemcinnes1834
@dalemcinnes1834 3 года назад
I have a favourite channel from the UK. Steve Jordan's channel. I've just started watching this one and really liking it. Dale in Canada
@yambo59
@yambo59 4 года назад
Another Zen moment brought to you by Mr. Crispin -- great to see ya settled in your new shop and working again after all that hard work getting the shop prepped and everything moved it, bet youre really glad to be at the point of enjoying the fruits of your labor. Nicely done.
@mikemichelizzi2023
@mikemichelizzi2023 4 года назад
Parting with a drill is new to me, so thanks for including it along with the story!
@phillipyannone3195
@phillipyannone3195 4 года назад
Good way to start the day with a Mr. Crispen video!
@nixie2462
@nixie2462 4 года назад
Not for the glass, tho! XDDDDD
@derekblake9385
@derekblake9385 4 года назад
Great work Mr Crispin, selfishly I like it when you make mistakes as it makes you seem human! You’re just so good at machine work it gives me a chance to be 10% as good 😉
@pickerjim9246
@pickerjim9246 4 года назад
You take precision to another level. Fun to watch you work.
@millomweb
@millomweb 4 года назад
I was looking at the annular grooves trying to see whether they were equally spaced. I got the impression they weren't - and I'd suspect that was down to randomness of the tool as it made its first chips in each groove. Once the groove is established, they probably are equally spaced - which suggests putting the grooves in before machining final OD might work out with a better appearance.
@KimbrellBrad
@KimbrellBrad 3 года назад
Superb parts made to exacting specifications Mr Crispin! This whole series is so entertaining and informative! I don't think I would have the gumption to attempt something this involved but all of these techniques transfer to any project. I can definitely see where my machining will improve due to watching this series. Thanks so much for posting and sharing your knowledge!
@MrCrispinEnterprises
@MrCrispinEnterprises 3 года назад
Thanks for your comments
@bulletproofpepper2
@bulletproofpepper2 4 года назад
I have heard of the the chuck being bored off a lathe in the states. I work in the oilfield, i have seen tools go down hole upside down and witnessed millions of dollars of equipment destroyed in minutes. I love my set of slip gauges and working on getting a set of pin gauges. Thanks for all the great information.
@FredMiller
@FredMiller 4 года назад
Spectacular video as always. I will drop everything when I see you have posted a new video. Your parting off tip was new to me. Thank you for sharing. It just goes to show you, you can always learn something new. Keep up the great work and videos. Fred
@jonsworkshop
@jonsworkshop 4 года назад
Excellent job Mr Crispin. Good metrology advice and DFM all in 20 minutes as well as interesting machining tips. Having spent 13 years in the great RR, I can safely say it wouldn't surprise me if this story had an element of truth in it. As with any manufacturer, mistakes do happen and get dramatised as they circulate over the years. In another company I watched 3 meters of 15mm stainless bar get wrapped round the bar feeder the guy forgot to feed the bar into at about 2000rpm. It moved the CNC machine about 4 feet and dug some holes out the floor. Good job no one was standing anywhere near! Keep up the excellent work. Jon
@kevCarrico
@kevCarrico 4 года назад
great video! thank you for not editing-out any mistakes, it is encouraging to know that - for whatever reason they’re made - we can learn from them and move on.
@learningturningmetal
@learningturningmetal 4 года назад
A great parting off tip! I must remember that one. Good to see that you make mistakes too. I've just made a screw for my Hemingway between centres boring bar project. Really proud of the screw. Sat down admiring it and then realised it should have been M6 not M5! Cheers! Andrew
@millomweb
@millomweb 4 года назад
I think my best threading efforts would be when aged about 12-13. I was making a woodworker's sash cramp - hence needing a long threaded rod. I guess the school metalwork department wasn't used to screw-cutting. As I was setting up, the 'teacher' kept coming over to see how I was getting on. He was back over as I started the first cut - which he watched for the whole length of the cut. On reaching the end, I disengaged the leadscrew half-nut and was about to wind out the cross slide when he stopped me. He was of the opinion you didn't take the tool out of the thread after each cut ! So basically, I'm claiming that I taught my metalwork teacher how to screw-cut on the lathe! The week after I completed the thread, I couldn't find my work. I was sent to the staffroom for it. Turns out the teach had been showing it to other staff and in the process awarded me a 'Commended Work' - possibly 1 of the 3 I got in my 5 years at that school and I don't anticipate the metalwork teacher gave out many 'Commendeds'. The internal thread for the nut I did at home on our ML7 as I don't remember the school having an internal threading tool !
@mr.jimmyjohnsr.ohyeah7835
@mr.jimmyjohnsr.ohyeah7835 3 года назад
NICELY DONE & VERY CLEVER MrCrispin ! ENJOYED IT ONCE AGAIN !!
@simpleman283
@simpleman283 3 года назад
It was so clever.
@OldIronLover
@OldIronLover 4 года назад
Fine, fine work. Always a pleasure to watch your videos.
@howder1951
@howder1951 4 года назад
Thank you Mr. Crispin I enjoyed watching you work immensely. Great explanation of the details of making an accurate part as well, cheers and stay away from MY toothbrush!
@TheDaf95xf
@TheDaf95xf 3 года назад
Evening Mr Crispin 🤠 From a drawing on a piece of paper to an amazing bit of turning 👍🏻 Sweet parting off trick 😄
@harryhopkins7798
@harryhopkins7798 4 года назад
Thank you Mr. Crispin. I always learn new things from your videos.
@captcarlos
@captcarlos 4 года назад
Thank you for another delightful video. The chuck story was a laugh, several things would have to have gone wrong for that to have occurred on a Ward turret lathe, sounds like a teaching tale to me. The person who hasn't erred, hasn't done. Stay safe, you're a treasure.
@arnljotseem8794
@arnljotseem8794 4 года назад
Excellent content Mr. Crispin. Good tips on measurements, and a really funny story at the end. Good to have you back.
@GoCreatehms
@GoCreatehms 4 года назад
Good trick drill parting off! Love the precision.
@marknewsome9563
@marknewsome9563 4 года назад
Great work and great explanation of operations. Keep them coming
@leesteele4574
@leesteele4574 4 года назад
Enjoy all your videos.. great job.
@ChrisB257
@ChrisB257 4 года назад
Dimension in memory being wrong. You are not alone, as I have done that more than once over many years! One thing about the cast iron - for most part I have found it much more tolerant of chatter than some steels when applying a radius tool... your home ground tool came out very well. Quite agree regarding the use of just the one measuring instrument. Nice job as usual.
@aceroadholder2185
@aceroadholder2185 4 года назад
My father told me that in the shop in the early 1950's they had bored out a large air compressor casting on the boring mill. When they trial fitted the piston they looked in the end of the bore two chaps could see each other over the diameter of the piston... oops!
@nikond90ful1
@nikond90ful1 4 года назад
Thanks for the video. Keep safe and stay well.
@James-fs4rn
@James-fs4rn 4 года назад
👍 more superb machining. That stepped caliper is a new one on me. Thanks
@retromechanicalengineer
@retromechanicalengineer 4 года назад
Very fine work and hugely enjoyable video. Many thanks, Dean in Oxfordshire.
@PhilsProjects
@PhilsProjects 4 года назад
always a treat to watch, thanks
@patrickbarker5906
@patrickbarker5906 4 года назад
Brilliant work sir, as always. Thank you for sharing it. 👍
@eclecticneophyte2581
@eclecticneophyte2581 4 года назад
One note regarding your "rolling motion" with the stone...Decades ago (i.e., 1970's), a retired machinist taught me a similar technique (with a flat file), to deal with nicks and burrs on a round shaft; so that one doesn't leave 'flat spots'. In all the passing years, you are the only other person I've seen use this technique. Perhaps it's a common thing, and I've simply been too isolated...either way, I can no longer feel 'uniquely all powerful', thank you very much... ;) You are highly skilled, and I hope you keep sharing videos of your great work!
@who-gives-a-toss_Bear
@who-gives-a-toss_Bear 4 года назад
A True Machinist. Can't imagine how brilliant he'll be with a few more years experience.
@oldschoolengineer58
@oldschoolengineer58 4 года назад
Great content Mr Crispin, thanks for sharing, More Please
@thomaskearns7350
@thomaskearns7350 4 года назад
Excellent video I learned a lot as with all your vids , and they're never to long
@ydonl
@ydonl 2 года назад
Some ways to get closer to perfect results with an imperfect lathe. Very nice!
@Adam5130A
@Adam5130A 4 года назад
Mega as per usual. Thanks Crispin.
@agafonovas
@agafonovas 4 года назад
Really enjoyed. I just discovered your videos and I'm really happy about it. Thank you.
@guyloughridge4628
@guyloughridge4628 3 года назад
Wonderful video. Thanks for the very informative content.
@sooty655
@sooty655 4 года назад
I heard the parted-off chuck story in the Middle Machine Shop at RR/BS Parkside in the middle '60s, so maybe it's one of those "tales to tell apprentices".
@chrisstephens6673
@chrisstephens6673 4 года назад
Like left handed screwdrivers and going to stores for tartan paint.
@sooty655
@sooty655 4 года назад
@@chrisstephens6673 ...or indeed a long weight. 😂
@tonyatlantis4564
@tonyatlantis4564 4 года назад
Chris Stephens And “sparks for the grinder” and “a bucket of steam”. The bas&@&ds tried it on me all the time. Then I became one.😂👍
@chrisstephens6673
@chrisstephens6673 4 года назад
@@tonyatlantis4564 and enjoyed dolling it out, just like they did to you.,😄
@Garrattmaker
@Garrattmaker 4 года назад
Always interesting to look for the “bigger scales”. Great stuff!
@tsheritageengineering
@tsheritageengineering 4 года назад
Well done Cris!
@MichaelEdwards2
@MichaelEdwards2 4 года назад
Errors, i remember from my college days lol Compounding errors. Our scrap bin was the metal stores :-), oh hang on thats the same at home doh!. Love the Video keep them coming.
@dowserdude
@dowserdude 4 года назад
What do you mean, this video has been going on to long. Are you mad; we want more.🚂.
@stuartaddinell104
@stuartaddinell104 4 года назад
^ ^ what he said. :-)
@gareththomson4080
@gareththomson4080 4 года назад
Great! This will keep my mind occupied for a while
@wino4340
@wino4340 4 года назад
Another excellent video. Always look forward the notification of a new video from Mr. Crispin!!
@wino4340
@wino4340 4 года назад
Mr. Crispin....do those calipers that you used to mark off the distance from the face of the valve have specific name? I'd like to have one.
@chrisstephens6673
@chrisstephens6673 4 года назад
@@wino4340 look up "jenny leg" or "hemaphrodite" calipers.
@thomasjake3920
@thomasjake3920 4 года назад
Wonderful content
@ianbertenshaw4350
@ianbertenshaw4350 4 года назад
Ok now that i have dragged myself up off the floor where i was laughing so hard i almost blacked out i can honestly say i have never seen someone part of using a drill and after watching this video it will be a practice that will get used in my workshop in the future ! I think many who make spool valves like yours tend to finish a tad oversize and use an external lap to finish to size - probably because it is more forgiving as it is really more controllable in the amount of material removal .
@marknewell7355
@marknewell7355 4 года назад
Mate you cant go on long enough for me the more I watch the more I learn
@zvonibab
@zvonibab 4 года назад
That is one nice and valuable trick and for that i do thank you! Cheers Mr Crispin
@jessestrum
@jessestrum 3 года назад
your level of skill is excellent
@simpleman283
@simpleman283 3 года назад
He dose has a LEVEL.
@machineshopatthebottomofth3213
@machineshopatthebottomofth3213 4 года назад
Loved the story about the ward lathe!
@honeycuttracing
@honeycuttracing 4 года назад
That parting off was great, 🤔 never seen that on any RU-vid video and I have watched a few 😁
@MrShobar
@MrShobar 4 года назад
Tom Lipton tells the same chuck destruction story in his book. In his account, it occurred at the Puget Sound Naval Shipyard in the 1950's. It's safe to say that the story is largely apocryphal and has been circulating around the trade for decades.
@lwilton
@lwilton 4 года назад
Or perhaps just as likely has been done many times in many places. :-)
@davedunn4285
@davedunn4285 2 года назад
Very informative mr Crispin
@MatthewTinker-au-pont-blanc
@MatthewTinker-au-pont-blanc 4 года назад
I do like your Videos!
@BisonWorkshop
@BisonWorkshop 4 года назад
as always, great video.
@andyZ3500s
@andyZ3500s 4 года назад
Beautiful craftsmanship Mr. Crispin. You explain everything so clearly that it's a joy to follow along as you are working on your projects. Who is the manufacturer of the hermaphrodite calipers that you were using? I've never seen that style before.
@dougvanallen2212
@dougvanallen2212 4 года назад
Well done Sir
@bclare2544
@bclare2544 4 года назад
Very interesting Crispin.
@kerrygleeson4409
@kerrygleeson4409 4 года назад
Thanks for sharing 👍🇦🇺👀
@HotAxleBox
@HotAxleBox 4 года назад
Made with the precision of a jet engine, keep up the good work.
@darrenphillips6456
@darrenphillips6456 4 года назад
Mr Crispin- getting withdrawal symptoms. Need a dose of one of your videos. 😁
@pjm2498
@pjm2498 4 года назад
Great stuff.
@ROBRENZ
@ROBRENZ 4 года назад
Enjoyed! ATB, Robin
@FutopiaAD
@FutopiaAD 4 года назад
Absolute best.
@daveticehurst4191
@daveticehurst4191 4 года назад
Well done Crispin, looked like you were using your newly acquired Carbide Slips ? Keep the videos coming and I hope that you will not be one of the people who RR are going to make redundant.
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
Hi Dave, yes they were indeed the carbide slips and a great addition to the workshop they are too.
@bcbloc02
@bcbloc02 4 года назад
Nicely done! The one to the wrong dimensions was just a practice run. :-)
@woodscreekworkshop9939
@woodscreekworkshop9939 4 года назад
Enjoyed it!
@thosoz3431
@thosoz3431 4 года назад
Ah yes. The great toothbrush war of 2020...
@thisnicklldo
@thisnicklldo 4 года назад
Top class, so much info so clearly imparted. Are you still at RR? Hope things work out there. It's all very well coming up with the wizard wheeze of letting customers pay for engines as they use them, but when they stop using them you'd wish you'd sold them properly. Anyway, with your skills and attitude you should find something good, though maybe not close to home.
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
Hi, yes I am. Not a good time to be in civil aero engines but touch wood the factory I'm in looks like it will be ok.
@johnvickers5750
@johnvickers5750 4 года назад
The RR story does'nt suprise me I witnessed many incidences of the like during my time at a particular RR factory the most memorable ones being the firework displays due to employees on night shifts dozing off while machining large rings of magnesium jet engine nozzle guide veins caused by tool overheating.
@millomweb
@millomweb 4 года назад
I'd have thought you'd have worked at Vickers rather than RR !
@johnvickers5750
@johnvickers5750 4 года назад
@@millomweb That was later about 1980 I believe. There was a small engine facility within the luxury car plant with lost wax casting & machining. They also produced several well known golf club irons & an adjustable socket spanner at the time amongst many other things🙂
@millomweb
@millomweb 4 года назад
@@johnvickers5750 Sadly, I seem to know as little as you about the Vickers family. It's hard to think that they were unrelated related family of metal fabricators par excellence. Roneo Vickers (duplicating machines +?) Vickers Hall (milk carton filling machines +?) Vickers (Shipbuilding(and Engineering)) (floaty boats and steam engines +?) And I've seen 'Vickers' on electro-hydraulic valves as used in cherry-pickers. So if you feel like researching all these arms of the family, I'd be quite interested in your findings !
@johnvickers5750
@johnvickers5750 4 года назад
Apologies please excuse an old man for reminiscing I was reffering to my days in the Crewe factory.
@ChristopheD_
@ChristopheD_ 4 года назад
Tale or Truth ????? Return of the levitating Chuck
@steamsearcher
@steamsearcher 4 года назад
It is in fact amazing just how the Labyrinth works! In fact at speed the bobbin would be moving about 400 times a minute. Our Reading track is 1,100 feet long and at a reasonable rate takes 2 minutes to go round. So the steam tends not to traverse to the lower pressure end. Ever so easy to make new when they wear. David and Lily.
@tomcook5813
@tomcook5813 2 года назад
May I ask, are the spool type valves better than the flat valve used on older units? Maybe a video on that subject? Pls and thank you, have a safe holiday.
@MrCrispinEnterprises
@MrCrispinEnterprises 2 года назад
Have a look at the video 'How Steam Engine Cylinders Work'
@tomcook5813
@tomcook5813 Год назад
@@MrCrispinEnterprises a look ya in the eye thank you sir .
@millomweb
@millomweb 4 года назад
I'm not convinced of the parting a chuck off story unless the metal being worked on was of a similar hardness to the spindle. It would be interesting to know what chuck mounting type was in use.
@pommeswerfer6973
@pommeswerfer6973 4 года назад
The initial moments are similar to myself thinking about my locomotive frame. Prussians and their tight spacing...
@johnmcdyer7297
@johnmcdyer7297 4 года назад
It was to short as usual mr crispin whenever I get chatter out the workshop I put another jumper on ,the joke at the end of the video about the man parting off the headstock was very good but I don’t think that is true ,,,,keep em coming and er thanks
@millomweb
@millomweb 4 года назад
Accuracy of 10th mics - Assuming a good brand/make/manufacturer, I'd have no issue trusting a mic to a 10th. I think one could take it for granted that a good quality machine was used to make the mic thread - which is really the only part of the mic of reasonable doubt. Also that the material the mic thread is cut on should also be good quality - i.e. of consistent material - no lumps in it to cause thread cutting deviations.
@chrisstephens6673
@chrisstephens6673 4 года назад
What was that about measuring twice etc etc. The first line of which is forgotten, read the drawing thrice. Did you mug a SMEE member for his coat?😉
@thechipwelder1253
@thechipwelder1253 4 года назад
"parting the chuck off" :D:D:D
@tobyw9573
@tobyw9573 4 года назад
Mr Crispin, How is the depth and width of the groves in the sliding surfaces determined. The purpose appears to be sealing and perhaps lubrication. Is there some formula and physics for them that you know?
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
I based than entirely on the drawings done by Martin Evans. All I can yes is yes, oil retention to improve lubrication and sealing.
@tobyw9573
@tobyw9573 4 года назад
MrCrispin , Thanks!
@nigelwood3313
@nigelwood3313 4 года назад
Hi Mr Chrispin I am very interested in how and what material you will yousing for piston rings on valve bobbins??
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
These are actually solid with oil grooves only. No rings. Im going to do a design video to explain the reasons.
@Blue.4t2
@Blue.4t2 4 года назад
🔧😊👍
@johnnyholland8765
@johnnyholland8765 4 года назад
That has got to be the most quiet lathe I have ever heard run............
@alasdairhamilton1574
@alasdairhamilton1574 4 года назад
And what has your brother done with your toothbrush “ cleaning his athlete’s foot “ 🤢👍👍🏴󠁧󠁢󠁳󠁣󠁴󠁿
@millomweb
@millomweb 4 года назад
Bog bowl stains ????
@cbmsysmobile
@cbmsysmobile 4 года назад
Somebody tell me where to get pocket size oilstones like that. I've been looking for some for ages
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
You buy them full size and then occasionally drop them on the floor.
@jordanbailey3289
@jordanbailey3289 4 года назад
Hi what is the length of the piston rod? Missing from my drawings
@MrCrispinEnterprises
@MrCrispinEnterprises 4 года назад
Let me check
@dav1dsm1th
@dav1dsm1th 4 года назад
:-)
@rickrick1867
@rickrick1867 4 года назад
honest to admit to a mistake on RU-vid than is admirable
@Pistolbaaz
@Pistolbaaz 2 года назад
Happy new year❤️ Mene abhi abhi kill chor or casetoo ki mixing voice over dena start Kiya he 🌹jara video dekh kar batana kuch kami he to jarur batana please video Puri dekhna🤍❤️🧡💛🤍💚💙
@simpleman283
@simpleman283 3 года назад
I looked in my scrap box and found this shit that U can not afford.
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