Quartering and Eccentrics - Pennsylvania A3 Switcher, Part 41
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9 күн бұрынThis episode on Blondihacks, I’m finishing the wheel sets! Exclusive videos, drawings, models & plans available on Patreon!
/ quinndunki
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@daar1113 7 күн бұрын
As always, I came for the machining. I stayed for the dry sense of humor. Love it.
@ParanoidMarvinMk2 7 күн бұрын
I often give the advice when talking about making things easier down the road that "Be nice to the next poor sucker, because chances are that poor sucker will be you." Quinn obviously doesn't believe in that.
@Argosh 7 күн бұрын
She believes in building character 🤣
@Tyrope 7 күн бұрын
I'm fully aware that future Ty will hate me, so might as well keep up my reputation. Past Ty is a big meanie for starting that tradition, btw.
@MrRedstoner 5 күн бұрын
@@ParanoidMarvinMk2 Quinn is not the only dry humor channel using the leave things for future me approach either
@zukowski2023 7 күн бұрын
Silly tip, when you are parting off an eccentric after boring it out, put a sacrificial piece of metal in the bored hole to avoid the "thumping action" of the parting blade as it passed the shaft hole. Having something to cut is better than beating the daylights out of the tool and tool post when it hits a void.. Just a thought (it's what I have done in the past and it works great).
@4GibMe 6 күн бұрын
Silly tip, down walk into another persons shop and start telling them what to do. Don't like it. don't watch it.
@FishyBoi1337 6 күн бұрын
@@4GibMe dang bro, it's literally not that deep. Take a chill pill.
@MrRedstoner 6 күн бұрын
@@4GibMe Did you miss the part about Quin literally taking Patreon suggestions? A respectfully worded tip is appreciated around here (unlike yours, which doesn't seem very respectful to me)
@Firebird1005 6 күн бұрын
@4GibMe it's really a slippy tip. If the inserts slips you get the thump without expecting it. Disaster follows. A hss tool can easily deal with an interrupted cut.
@steveh8724 5 күн бұрын
@@4GibMe Silly tip, don't treat mild suggestions as walking into a shop and "telling someone what to do." NOTE: This is just a mild suggestion. Feel free to keep over-reacting if you must.
@belatoth3763 5 күн бұрын
When you recentered the eccentric on the lathe I almost made a standing ovation. It is a clever and precise way instead of poking it with the live center or so
@WobblycogsUk 5 күн бұрын
I've been to more steam and model shows that I can remember but it wasn't until I watched this series that I really got a feel for how much time and skill goes into making these model. I would never consider making one myself (woodwork is my thing) but I can appreciate true craftsmanship in any form.
@thoughtstream9591 4 күн бұрын
In fairness to past you, I still like "shut up, that's why" as a reason. It certainly never happens to any of the rest of us 😂. Between you and Adam Savage, I am slowly learning to be more accepting of my mistakes, errors and things I didn't think of.
@halo6six6 7 күн бұрын
41 episodes in and I can’t believe how far you’ve gotten. I love watching the parts come together and start to become a locomotive! You’re doing an amazing job. Thanks for another great video!
@Hyce777 21 сағат бұрын
Beautiful work Quinn. That jig is pretty genius. The tips on machining eccentrics I certainly appreciated! Couple real world steam connections: I've got no idea how big 2816's bore is, but it's darn big. I know the bore on our 1881 and 1899 ancient narrow gauges engines is 16", and our big K class is 20". The size of some of those engines out there is staggering. Only boat people get us... Lol! Also, many shops have drop pits instead of big cranes. I always wish I had a big crane and I've only ever had drop pits. Yucky nasty places, but the process is similar - just some removable rails that slide out of the way and a big ram or small crane to hoist one wheelset up or down.
@Blondihacks 21 сағат бұрын
2816’s bore is actually 22”. I misspoke in the video. 😕
@steveskouson9620 7 күн бұрын
"...but she's a sucker, we don't have to worry about her." Quinn, NEVER stop! steve
@tomgidden 7 күн бұрын
5:07 “That's a pain for Future Quinn and she's a sucker...” ... 23:07 “Past Quinn is dumb.” **sigh** They grow up so fast...
@user-qe1uq2su8k 7 күн бұрын
Interesting fact. Big stationary steam engines have a series of either holes drilled or some kind of pockets cast into the periphery of the flywheel to insert a jack or crowbar to muscle the engine off the top center or rotate the engine incrementally for whatever reason.
@user-oz3lx1rt2l 7 күн бұрын
I met an engineer from England who told me his first job was first thing in the morning to use a large prybar in a series of holes in the wall behind a large single cylinder horizontal steam engine that powered the shop to take it just past top center.
@oldfarthacks 7 күн бұрын
And even bigger engines have small steam engines to drive a worm gear that will bar the engine over. Hand turn the small engine to a past TDC position, swing it into engagement with the crankshaft and then apply the steam to allow it to move the main engine to the starting position.
@RonCovell 7 күн бұрын
Excellent presentation, Quinn. I wasn't familiar with 'quartering', and I do like that ingenious fixture. I also enjoyed seeing that you like dogs, in addition to cats!
@ThePhoenixAscendant 7 күн бұрын
And in today's video, an eccentric making an eccentric!
@martynbuzzing3327 4 күн бұрын
Very interesting about locomotives needing two cylinders. Who knew?
@PRR5406 5 күн бұрын
My dear Quinn, we are fashioning a locomotive nerd out of you. Excellent !
@howder1951 6 күн бұрын
Wow, I think the chassis looks beautiful at this state of assembly. All the precision has paid off, got to be proud of this accomplishment, cheers!
@robertberger8642 4 күн бұрын
Great video, Quinn!
@TheBlahblahblahhh 5 күн бұрын
God do I love this series. Thanks so much for making it.
@AnonOmis1000 7 күн бұрын
9:05 idk why but i aways find it so satisfying when you pull back a reamer and see the flutes fill of chips. I guess it's because it shows the reamer did actually cut.
@johnwiley8417 7 күн бұрын
5:37 "Wiggle room" with an eccentric. HA!!! I love your puns, Quinn.
@austinallmond7211 7 күн бұрын
Watching this while restoring an old locomotive. I hope you're proud of me!
@user-qe1uq2su8k 7 күн бұрын
That quartering jig is ingenious. I've had to fight quartering on all my multiple cylinder steam model with varying success
@jimsvideos7201 7 күн бұрын
Thank you for making weekends into a particular treat. 😊
@dj51 7 күн бұрын
Quinn always does a good job of explaining what is happening in the video. This time she outdid herself. The explanation on quartering was excellent for someone who is not familiar with steam engines and the necessity of the practice. Kudos to you!
@jeffarmstrong1308 7 күн бұрын
I love that quartering jig and wish I had seen it back in the day. The way I went was to split a block of steel a la bearing caps and machine it truly square, the clamp the wheels into it. Working on a sheet of 12mm thick float glass that I use as a surface plate, the first crankpin was set with a stack of gauge blocks, then the whole assembly rolled over 90° to set the second crankpin. Everything was locked up using a wicking grade of Loctite. A mate used my setup to quarter the wheel of a NSWGR Garratt loco. This is a 4-8-4+4-8-4 heavy goods articulated loco so he had eight axles to quarter. It is essentially two engine so he 'only' had four axles each but he had to do it twice! 😅
@mattomon1045 7 күн бұрын
Quinn thank you for explaining Quartering of wheels
@johnmoorefilm 7 күн бұрын
Raining here in Dublin, loving this cosy warm!❤
@DavidLindes 3 күн бұрын
10:36 - fair, and maybe you don't like saying yahtzee for partings that you don't like doing? But you have me trained, so I said it (with just a hint of questioning tone in my voice) once I realized that you weren't going to, or at least not immediately (i.e. about half-way through the gap in you talking). P.S. Dang, (then-)present Quinn was being pretty harsh with both future (5:07) and past (11:49, 17:13, 23:07) Quinns! Bully! ;) P.P.S. 14:26 - aww, you look so happy in that pic! Nice! Yay for moments of joy. 🥰
@DimasFajar-ns4vb 6 күн бұрын
peace be upon you
@vikingsofvintageaudio7470 3 күн бұрын
Telegraphed or teleported? 😅 Found it funny if it wasn't a miss? Love your videos Quinn, I've learnt everything I know from you!😊
@northmanlogging2769 7 күн бұрын
gonna need a little more track, maybe enough to go to the kitchen and back for snacks?
@Kim-kl5jh 7 күн бұрын
Wonderful job on the eccentrics and quartering your wheels, Quinn. Nicely done. You're quartering jig is really top notch! I made mine out of wood, which worked fine. I thought of doing a metal jig, but went the cheaper route. As you said, it has a pretty short lifespan! Always enjoy your videos, Quinn! Thanks. 😊
@nicholashacking381 7 күн бұрын
You gave me a lightbulb moment: "You can't plunge cut with this type of endmill...." This explains a lot. I really should get to grips with the basics of endmills before I fire up my mill again. Thanks for that, and for the absorbing videos.
@oldfarthacks 7 күн бұрын
In general true. For plunge cutting, use a 2 flute milling cutter. They have a name for those that involves the word drill, but it slips my mind right now.
@ET_Don 7 күн бұрын
I'm Eccentric, but only because I'm 57 ish years old. Thanks for another great video Quinn.
@PointerGo 7 күн бұрын
Hi Quinn. I binge watched all of these episodes so now I am caught up. Thanks for showing this build.
@terrytopliss9506 7 күн бұрын
Well worked out project Quinn,lovely job. Thanks for the video.👍👍
@tyzojack 4 күн бұрын
hi quinn love your vids you explain things very well, tony from the uk. any chance of showing how to use a dro on the mill. thanks
@randallcleaver6990 3 күн бұрын
Not sure if you ever watched "Cruising the Cut" on youtube but he just did an episode (338) on a steam powered canal boat.. You might enjoy seeing the engine. So much work to run the thing. You would love it.
@Blondihacks 3 күн бұрын
I have seen it! I do watch him, as a matter of fact. I find his videos very soothing
@randallcleaver6990 2 күн бұрын
Me too. And, honestly, I find your episodes the same calming experience with me also learning a lot. Thanks for the work you put into them.
@geneard639 7 күн бұрын
WOOHOO! Getting closer to the first run!
@eldonwilson712 3 күн бұрын
great video as normal Did 2816 get back to Calgary after the run to Mexico
@carlweatherley4883 7 күн бұрын
I've seen a few eccentric straps with holes in too adjust grub screws in place
@fellipec 7 күн бұрын
Can't wait to see this loco working!
@johnapel2856 7 күн бұрын
That pesky past Quinn. Why you ought'ta... Another neat step in the project. I never thought about the quartering. Makes sense. Yay! I know something new! Thanks, and Meow to Sprocket. Oh, and Woof to the dog. Settle down Sprocket. Plenty of love to go around.
@firebird8600 7 күн бұрын
Yay! It's Blondihacks time!!!
@r1mein54 7 күн бұрын
Another great video instruction from Quinn.
@Wyllie38 7 күн бұрын
Model quartering looks like a fun task. I’ve only ever checked the quartering on larger wheel sets we’ve been refurbished at work.
@richb419 7 күн бұрын
Nice work!
@johnopfer8065 6 күн бұрын
Could you have done the eccentric hole using the milling machine as a precision drill press?
@theothertonydutch 7 күн бұрын
Can't wait for Wallschaerts time!
@harleypruett 7 күн бұрын
This is a machining channel, so no complaints, but I feel like that quartering jig would be an excellent use case for 3D printing!
@yowie0889 7 күн бұрын
Thanks for continuing to explain steam locomotive concepts with reference to internal combustion equivalents/differences. Very handy for those of us into cars but with no idea about steam trains.
@RainShadow-yi3xr 7 күн бұрын
this project is going great! I'm so exited to see it run.
@raymondhorvatin1050 7 күн бұрын
Thanks for sharing your experience and your knowledge
@feedthechunk9836 7 күн бұрын
Beautiful.
@richardepps8500 7 күн бұрын
Im sooo excited for the future of this project. Im learning alot about how the train do...
@warrenjones744 7 күн бұрын
Great explanation of quartering. Thanks
@brianjohnston7855 7 күн бұрын
By the time this is finished I just might understand how a loco works! It amazes me, as a non-machinist, how all these operations work. Roll on next episode.
@oldfarthacks 7 күн бұрын
Consider these videos training material on the processes of making a train.
@paulmorrey4298 7 күн бұрын
Thanks Quinn
@SonoIlFactotum 7 күн бұрын
Wonderful!
@mattomon1045 7 күн бұрын
great work Quinn
@allenlandis4504 7 күн бұрын
really enjoyed the video, thank you very much.
@pierrebourguignon1515 7 күн бұрын
I can't be the only person who kept saying Clarence every time you said clearance...am I?
@oldfarthacks 7 күн бұрын
Rodger that Pierre.
@garygenerous8982 7 күн бұрын
What’s our vector Victor?
@RustyInventions-wz6ir 7 күн бұрын
Very nice work
@Genubath1 7 күн бұрын
It's so exciting that it can roll by hand now
@gregorythomas333 7 күн бұрын
YEAY! Nicely done!! :)
@CrazyTrainOfThoughts 7 күн бұрын
Very excited to watch, but i must wait till tomorrow afternoon to commit the time. Thank you so much for the regular upload schedule. Best regards.
@lydiahanke 7 күн бұрын
Great video!
@generessler6282 6 күн бұрын
Thanks for the great explanations, passing along terrific skills. "People work better in teams." Yeah.
@Jeff-KN6UDG 7 күн бұрын
Well done 👍👍
@MrSupaman777 6 күн бұрын
Q- past, present, and future you are not dumb. We are only human. You're the best! Don't forget it!
@SpiralDiving 3 күн бұрын
How do the axle bearings get lubrication?
@mtm101designs9 7 күн бұрын
Thanks!
@karlmansson8319 4 күн бұрын
Hey. How's that chuck key doing, Quinn?
@brianpentecostaldeplorable9841 6 күн бұрын
Love it, great work ! You're a great teacher. Your wit and humor go well with your explanations.
@williamsanders 7 күн бұрын
Three-cylinder locomotives are “quartered” (thirted?) on 120 degrees (or some degrees from it, depending on the angle of the middle cylinder). So basically any angle would do.
@oldfarthacks 7 күн бұрын
Just like with a 3 phase AC motor, but given smooth running, the closer to the exact angle, the lower the losses and better the running.
@raymitchell9736 7 күн бұрын
Past Quinn is not dumb... because that would make the present Quinn in the future... uh oh... "Shut up that's why" works for me. LOL
@donaldsutherland244 7 күн бұрын
Almost every installment of yours conveniently answers some problem that I have had recently or currently. -I did recently have a problem with Krazy glue NOT letting go of some printed Aluminum parts. Acetone, heat, brake cleaner, . . . nothing worked! I am assuming that being a printed part the irregular surface inside the hole for the shaft was irregular enough to create a net surface hiding pockets of glue to parts, that I couldn't reach with solvents, and maybe the heat applied vitrified the glue? -I ended up milling the steel shafts out! I love your videos! You are an excellent teacher! Thank you!
@frankwaters2133 7 күн бұрын
I'm pretty sure that I was watching Keith Appleton drill a hole in an eccentric strap so that he could access the eccentric adjusting setscrew in situ.
@gregoryheim9781 7 күн бұрын
Past Quinn makes Present Quinn funnier.
@Ioughtaknowbetter 7 күн бұрын
When I was taking my apprenticeship The jig and fixture people (or as we called them, fig and jixture) were always the most creative and interesting. Also usually alcoholics.
@ryanheath251 7 күн бұрын
Did you verify the back-to-back dimensions of the drivers as you fixed them to the axles? Back-to-back is critical to ensuring the flanges interact with turnouts properly and don’t bind on tight curves. Improper b2b leads to derailments on models and the real thing
@robertpearson8798 7 күн бұрын
Nice little blonde Cocker, it looks very much like our last one, Pippin. Our current one is mostly black and named Buster (short for Lancaster Dambuster).
@happymanharp1378 7 күн бұрын
14:26 PUPPY!
@timothywalsh3003 7 күн бұрын
Woohoo! Choo choo!
@fountainvalley100 7 күн бұрын
I like to do my eccentrics in the milling machine. Just center the machined part with a dial indicator then move one axis the required offset.
@manythingslefttobuild 7 күн бұрын
Great video Quinn. For parting into the eccentric hole, could you have inserted a piece of 7/16 round bar to fill the hole and just knock it out after the part is out of the lathe? 28:21 field trip?
@LightBranches 7 күн бұрын
Next episode: the meaning of life.
@oldfarthacks 7 күн бұрын
42
@jamesmeader6539 7 күн бұрын
I wish the scrap fairy would visit me now and then and leave neat useful pieces of scrap in my bins.
@perfectlyinsane1376 4 күн бұрын
Past Quinn is not dumb, present (and future) Quinn is smarter than past Quinn. Aka learning and hindsight.
@OscarSommerbo 7 күн бұрын
What a weird looking cat you had next to the Empress locomotive.
@oldfarthacks 7 күн бұрын
Sprocket agrees.
@AirwolfCrazy 7 күн бұрын
I already knew what quartering is and why is was done. Your description of it was well done. I wonder if the V-block would be a good part to 3-d print?
@davidjacobs-uw3sj 7 күн бұрын
You are correct it could be printed successfully. The accuracy of the printer should be compared to Quin’s just ask her.
@peterwooldridge7285 7 күн бұрын
Smashing
@tonyruiter 7 күн бұрын
This is awesome, I love these videos! I had a dumb question (I don't know anything about trains or machining etc.) : Why wouldn't the shaft and wheels be locked together with say a keyway, screws, or something more formal than glue? Is it just too tricky to keep the alignment of both wheels and machine these features in or something? I ask this since to my (non mechanical) brain that Loctite would seem to have to hold heaps of torque. But I presume in reality it's actually intuition-defyingly strong?
@donotwantahandle1111 7 күн бұрын
On the model I was making it uses a pin with a hole half in the wheel and half in the axle.
@wernerpfeifer 7 күн бұрын
👍👍👍Grandios!
@Propriated4one 7 күн бұрын
Nice
@gordw2005 7 күн бұрын
I really enjoy your content and humor. I have a question though... what is the difference between your stock and your scrap piles? I seem to only have stock piles. Keep up the great work.
@zzmike 7 күн бұрын
Saw "The Empress" 2816 just a few weeks ago, heading to MX City through Wharton, Texas. It was early in the morning and it had just departed its overnight. It appeared NOT to be producing steam for forward motion, although the whistle worked! The theory bounced around was that they don't want to get up at 4am for an 8am departure, so they "steam up" in motion, using the backup diesels for the first 2-3 hours of the daily progress. Not sure if true . . ..
@Blondihacks 7 күн бұрын
Interesting theory! Typically for a trip like this, they just don’t ever cool down the boiler to prevent that problem. Back in the day, crews would keep boilers in steam for weeks or months on end, cooling them down only for cleaning and service. It may be that they got low on water or had a mechanical issue, hence the diesels.
@zzmike 7 күн бұрын
@@Blondihacks It was still a mighty pretty locomotive. Heckuva trip: Calgary to Mx City (and return!). Could it just be the cost of oil over the 2-month (or so) trip. It must burn a fair dinkum amount, you'd think.
@RustyInventions-wz6ir 6 күн бұрын
Looking good
@OutbackCatgirl 7 күн бұрын
i have to wonder if there's a way to take out some of the vibration with heavy extra strong magnet weights or something that can attach firmly to the head offcenter
@UncleKennysPlace 7 күн бұрын
@14:28 _Puppy!!_
@owengrossman1414 7 күн бұрын
It seems to me that when the piston on one side is applying maximum force to its pair of wheels that some torque will be transmitted through the axels to the non-driven wheels on the other side. This periodic condition wouldn’t be much different from a locomotive that only had a single piston on one side except for the issue of getting it started.
@Blondihacks 7 күн бұрын
There’s almost no time when a steam cylinder isn’t producing torque. Every stroke is a power stroke and power is fairly linear. Steam is not like internal combustion
@matthiaswandel 7 күн бұрын
@@Blondihacks its only a short time that only one cylinder is applying torque, but it happens twice every turn. And the other cylinder also has two dead spots, so for every revolution, there are four points where half the torque from the piston goes through the axle, in opposite directions.. Its the magnitude of the force, not the duration of the force that works it loose over time. Torque going back and forth also adds to help work it loose over time. But I don't see this engine pulling heavy loads for hours at a time, so unlikely to be an issue.
@Blondihacks 6 күн бұрын
If your suggestion is that the Loctite will fail, it won’t. It’s far far stronger than required in this situation.
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