Ok guys this is Kurtis from CEE, and today's job is fixing a piston rod from Quinn a long term viewer of the channel, but first we need to make a lathe and tooling to fit the job cause our gear might not be the best choice for the job...😂😂😂
@brianhaygood183 I've watched every video Curtis has posted including the one where he clearly explains what he is saying in the introduction and I still hear young guys
Quinn - I absolutely love the incredibly well explained "oopsies" moments like clamping a cast part in a vice. It's one thing to admit your mistakes, but a whole different thing explaining why things went wrong the way they did, as well as a solution to the problem. This is the kind of quality content I absolutely love to see. Been following this build from day one and I've learned so much from your videos, it's actually unreal.
Fun fact about why locomotives of this era were so decorative; it wasn't just some quirk but part of the marketing, steam locomotives were seen by society as these new dirty horrors that clanked around inelegantly, so companies went to great lengths to make them into elegant clean and shiny things. Covers and domes made otherwise complex shapes both look nicer but also be easier to clean to a nice shine. ditto why stations were so decorative looking like churches and cathedrals, to sell this as not just some utilitarian way to move goods and people but as a clean and civilised way to travel. The victorians were kinda weird but hey you see the same instincts today with how new technologies tend to be sold on their elegance and aesthetics more than their function.
Cylinder head covers also had insulation under them that helped keep the heat in the cylinders, making for less condensation and more efficiency 🤓 Another great video! Thank you for all you do for the hobbies (machining and steam engines)
Re "Cast bores can never be trusted for anything at all." I wish I knew this before I was completely taken-in by a cast bore claiming to be an exiled Nigerian Prince with access to a stash of gold.
I just feel privileged to be along with you on this particular journey, Quinn. You're my favourite UA-camr, along with Chris Clickspring. Just keep doing what you're doing.
You are probably aready aware of this, but here goes anyway. There is a company in Australia manufacturing a huge drll. HALS. They ate on You tube. They are using some pretty big boring bars.
I’ve never even seen a lathe in person but since I found your channel I’ve never missed an episode. It’s not about being perfect it’s the very interesting journey to find a destination. I hope your shoulder is healing and you take some time for your minds health as well.
Quinn, in case you actually see this comment 2 weeks after you posted this video: When I was designing & drawing (pencil & vellum) my mechanical designs, for fractional dimensions, I gave the Toolmakers ±1/32-in. (~0.8-mm) as the tolerance. When using decimal dimensions, I tightened things up a bit, closer to what you mentioned. Perhaps Kozo did something similar?
Hi Quinn. Nice to have you back, and I hope you're feeling better. Also at 8:00 it's hilarious watching Kurtis from CEE tap holes smaller than 6mm or 1/4-20. You'd think he was tapping an 0-80. 😂
Just back from a short holiday abroad (a vacation) and catching up on missed videos. I had *so* much unsolicited advice to give but now that I've read the couple of notes on this video, it will go to the grave with me. Best place for it, probably.
Hey there Quinn! I suggest you shouldn't have read the suggestions! :) Hope you feel better... I feel your pain as I'm still out of work with a broken index finger, not even home workshop time for me for at least a month... so it is just videos from my favourite machining channels that get me by. Keep the videos coming!
It's great to see you back, Quinn. You do some amazing work on parts my big hands would have trouble dealing with. I don't believe my old South Bend lathe would be able to deal with the parts you make. But it sounds like fun trying.
Great video on machining of cylinders, for beginners it’s one of the hardest jobs to know how to create the setups and you have done it in a really interesting way. I see your comment regarding 4-6 weeks etc so all I’ll say, hopefully not seen as rude, but 20thou won’t matter if you lose that in the steam chest. Or if your steam chest wall was 20thou thinner, I’ve got 10 locos on the go in the workshop so talking from some experience, it won’t matter so don’t lose sleep over it! Look forward to the next instalment.
Currently in my house in China with jet lag and a cold… 1:30am and this is very much needed entertainment! All your videos are simply superb Quinn! Thanks so much for building this! I can’t wait to see it running! (The steam cylinders and Walschaerts valve gear are my favourite part of any loco, so I’m really going to enjoy watching you build these!!!)
Where I work at we tolerance every single dimension on the drawing. No tolerance boxes in the title block anymore in the newer standard. We do GD&T per ASME Y14.5-2009. I prefer on every single dimension having a tolerance because it leaves no room for confusion.
I have a friend who great grandfather and his great great grandfather were both machinists and he has at least 100 boxes of their old notebooks and drawings and one day we were going through them looking for a drawing that each of them had done to frame and hang on the wall. Anyway one thing we both noticed was all the no standard fractional measurements that were used. The next day while going through some more boxes we came up a box full of scales, rulers, gauge blocks (both purchased and shop made) dividers, calipers, a 1” and 2” micrometer, along with some shop built measuring gauges. Seeing this makes me wonder if fractional measurements were not the rule rather than the exception prior to WWII. Additionally if I recall correctly Dave Richard’s made a comment similar to that a few years ago. Have a great day and a better tomorrow.
I have a content request if it isn't too late. That 4-6 week lead time may mean that it is. If so, that's ok. You probably already covered it anyway. But, it would be nice to hear what you have to say about the differences between scale models that are non-functioning, and those that actually work. The steam chest challenge seems to be a great opportunity to talk about that. It would seem that quite a few dimensions would be different between these two model types, since you aren't scaling, or at least not scaling to the same extent, things like pressure, heat, and other working environmental factors. Gee I love your videos and your patience that is on display.
That would be an interesting discussion. As an example, if you scale a steam engine whistle, it just does not produce the sound of a full sized one. But a video on those differences in the working pressures in the valve chests, the pistons and so on would indeed be educational. For instance, the working pressures used in models are close to the real engines, so if scaled up either the full sized engines would be working with pressures around 2,000 psi or so.
I wholeheartedly agree with this. It would be such an interesting addendum, or even a whole educational video explaining the concepts and maths behind that(given how good Quinn is at explaining all kinds of concepts in an easy to understand way). A buttload of work tho 😁
I enjoyed the tolerance chat - I did start modelling another of Kozo's designs in SOLIDWORKS, one of the things that....limited my enthusiasm.....for carrying on was the dimensioning.
Hey Quinn! Lordy. The cylinders... on the big engines, this is the killer. If the cylinders aren't right... yeah. I won't bore (hah) you with the thing you... clearly did wrong! Did you know UA-camrs don't meet their commentors expectations? lol. On a very much more fun note, Brett told me he heard in an interview of James May (some dumb British car UA-camr/Presenter/... jesus christ, it's James May!) that James watches your channel... if there was a higher honor, I couldn't think of it. Maybe Adam, of course, but he'd be into it... Or so we'd hope.
Holy cow!! That’s amazing. I love James May. Such a great presenter and all his YT content is really fun too. I was a big fan of Top Gear back in its prime.
My comment is simple. Imagine this is a real locomotive shop, and workers come up to you asking, "Should we scrap this huge casting with hours of labor into it already, or slightly modify the attaching part to fit?" I can tell you what any shop foreman in his right mind would say.
Does she or doesn’t she? A machining UA-cam cliffhanger! No matter what you decide it will be the right choice for you. Keep on top of any leaks from your production crew. I’d hate to have this spoiled.
When trying to make the front face parallel to the back one, could you have put a piece of wire or cylindrical stock horizontal between each vise jaw and the part so that there would only be a single line of contact with each jaw? I suppose those two "lines" would need to be at the same height.
When using the large drill bits to remove material from the inner surface of the cylinder you mentioned that a flute on the drill caught the edge and wandered off center. I'm not a machinist by a long chalk, but would it help starting the bit if you chamfered the inner edge of the cylinder just a bit before you inserted the bit? Perhaps a slight chamfer the same angle as the cutting end of the drill bit would help prevent that issue? Just wondering...
Yes, the chamfer angle needs to match the drill and the diameter needs to be slightly bigger than the drill and the depth of the chamfer should be minimal. This way the chamfer will guide the drill, this is the way that 4 fluted core drills work as well, they have no chisel point to clear the material in the center. They have a thicker web as well to reduce wander. For using core drills as step drills you have to just make a new larger chamfer for each or use one large chamfer and pray the core drills 4 flutes are ground correctly on each of your step drils. A bit hard to off hand touch up or initial grind but I am sure Stefan G can manage this... want to guess why they are called core drills, and when they started being made? I attempted to use a search engine to get a link, forgot core drills are also called that to extract a sample for testing, in the ground, in a Billet or initial casting to check for internal structures, a pain. Good luck+ Edited for Stefan's name spelling, sigh, Voice to Text still sucks
Hahaha, love your inspection by "myeyecrometer", much like when in my electrical career of installing conduit racks when we would say 'looks good from my house'. One can never have enough extra material for a project - 'it will get used' (somewhere).
I rhink Curtis may have a baby biring bar like yours. A few years back he bought a lathe that had bunches and bunches and bunches of stuff packed with it. Among that stuff was some small boring bars. I doubt that he uses them, but he has them. Maybe he will break them out when he's building the new cab for the crane.
Hi Quinn, just a question. Wouldn’t it be possible to mill that side until it is clean, and then solder a strip along it to bring it back up to the needed width?
use the casting, i have done alot machineing on casting for a full scale traction engine. from the orginal drawings with where 104 years old, there where no tried up size. you have drawing, made the next part fit until the engine was complete.
I'm interested in how you would have solved it if you *had* discovered this before you started machining. Was there enough excess material elsewhere in the steam chest base in order to solve this by rotating the part around the mandrill so that the required dimension could be hit, or would another solution have been neccessary?
Ugh... That's no fun, to put in all that work and then have one edge of the casting not work out right. That's one of the reasons I decided not to go with the casting. I don't know that it saves you much machining time. And you always have the difficult time of figuring out how to hold the casting and figuring out the best place to start machining, never any fun to find out you should have moved it 20 thou to the left before you stared. 🙁 But you already had the castings. If I'd had castings I'd have probably done the same. Did both cylinder castings come out the same 20 thou off? Or was it just one of them? I have no doubt that you've already got a great solution and I'm excited to see what it is. Looking forward to the next exciting installment of your Pennsy A3 Switcher build!😊 Hope you're all OK, Quinn? Missed you last week!
Yah I would definitely not have used the castings if I didn’t already have them. They were more trouble than they were worth. The other casting did clean up in that spot, but just barely. So these castings are stingy in that corner for some reason.
Hi Quinn, could you mill that undersized dimension down a bit more and silver solder on some filler material, then mill it back to spec? Edit: I see you've already resolved it... Can't wait to see the solution
Your mention of CEE reminded me of a comment Kurtis made in the outtakes of the video where he made a large boring bar - "look at the size of that f***ing thing!"
@@alun7006 the way it was mentioned is that they had been handed (because you need a left and a right one). Not that they were handed when they were cast. Looking around 1:25 they look to be very uniform on both sides, so doubtful they were cast handed.
Hi Quinn, nice to have you back, I hope the shoulder is alright again. I have a question: Since Kozo was from Japan and Japan is a metric country could it be that the weird fraction you seee in the drawing be conversion related? I know that you get weird numbers when convertig metric to imperial or vice versa
Apologies all, looks like it is gone. I don’t remember taking it down but I also haven’t thought about it for a long time. I wrote it many many years ago
Ok guys this is Kurtis from CEE, and today's job is fixing a piston rod from Quinn a long term viewer of the channel, but first we need to make a lathe and tooling to fit the job cause our gear might not be the best choice for the job...😂😂😂
@@brianhaygood183
I still hear "Hey young guys!" LoL 😂😆
@brianhaygood183 I've watched every video Curtis has posted including the one where he clearly explains what he is saying in the introduction and I still hear young guys
@@brianhaygood183 Yeah, I was sad to let it go but as a french human being I couldn't wrap my head around it's written form 🤣🤣🤣
Quinn - I absolutely love the incredibly well explained "oopsies" moments like clamping a cast part in a vice. It's one thing to admit your mistakes, but a whole different thing explaining why things went wrong the way they did, as well as a solution to the problem. This is the kind of quality content I absolutely love to see. Been following this build from day one and I've learned so much from your videos, it's actually unreal.
Fun fact about why locomotives of this era were so decorative; it wasn't just some quirk but part of the marketing, steam locomotives were seen by society as these new dirty horrors that clanked around inelegantly, so companies went to great lengths to make them into elegant clean and shiny things. Covers and domes made otherwise complex shapes both look nicer but also be easier to clean to a nice shine. ditto why stations were so decorative looking like churches and cathedrals, to sell this as not just some utilitarian way to move goods and people but as a clean and civilised way to travel.
The victorians were kinda weird but hey you see the same instincts today with how new technologies tend to be sold on their elegance and aesthetics more than their function.
Cylinder head covers also had insulation under them that helped keep the heat in the cylinders, making for less condensation and more efficiency 🤓 Another great video! Thank you for all you do for the hobbies (machining and steam engines)
"Eyecrometer."
Every week you say something that strikes home!
And, I love it.
steve
Re "Cast bores can never be trusted for anything at all."
I wish I knew this before I was completely taken-in by a cast bore claiming to be an exiled Nigerian Prince with access to a stash of gold.
Problem solving is the name of the game and, in addition to being entertained, I learn something about that in each of you videos.
Quinn, "mate, you are an inspirational legend." Nothing more need be stated.
I just feel privileged to be along with you on this particular journey, Quinn. You're my favourite UA-camr, along with Chris Clickspring. Just keep doing what you're doing.
2+2=5 for large values of 2 and small values of 5. 😁
This only applies on the third Wednesday of months that end in "Y" 😃
Thanks!
Cutting Edge Engineering mentioned. nice
Now she's allowed to Joe Pie the plans :-)
Nice to see you back, Quinn. Hope all goes well from now on
You are probably aready aware of this, but here goes anyway. There is a company in Australia manufacturing a huge drll. HALS. They ate on You tube. They are using some pretty big boring bars.
Very nice work madam. That trein is coming along nicely now. Your work is on another level. Very interesting, inspiring.
I’ve never even seen a lathe in person but since I found your channel I’ve never missed an episode. It’s not about being perfect it’s the very interesting journey to find a destination. I hope your shoulder is healing and you take some time for your minds health as well.
Not only CEE has bigger machines but they also have a dog instead of a cat! We love you anyway!
Quinn, in case you actually see this comment 2 weeks after you posted this video: When I was designing & drawing (pencil & vellum) my mechanical designs, for fractional dimensions, I gave the Toolmakers ±1/32-in. (~0.8-mm) as the tolerance. When using decimal dimensions, I tightened things up a bit, closer to what you mentioned. Perhaps Kozo did something similar?
Well colour me staying tuned. Thanks Quinn, helps a lot!
Hi Quinn. Nice to have you back, and I hope you're feeling better. Also at 8:00 it's hilarious watching Kurtis from CEE tap holes smaller than 6mm or 1/4-20. You'd think he was tapping an 0-80. 😂
Good video Blondihacks, glad you're back.
Good work double checking the bore casting before the final cut! The drama
Happy to see a video this week! I was a bit worried when you did not post one last week. I really enjoy watching your work.
Just back from a short holiday abroad (a vacation) and catching up on missed videos. I had *so* much unsolicited advice to give but now that I've read the couple of notes on this video, it will go to the grave with me. Best place for it, probably.
There's no such thing as "modern imperial machining" ***Chaos ensues! 😂
Do we now have "post-modern imperial engineering"?
HA! 8:16, nice reference to CEE! love them too.
Time flies watching these.
Hey there Quinn! I suggest you shouldn't have read the suggestions! :)
Hope you feel better... I feel your pain as I'm still out of work with a broken index finger, not even home workshop time for me for at least a month... so it is just videos from my favourite machining channels that get me by. Keep the videos coming!
Great info about the old school tolerance thing. Didn't know that. Thanks!
It's great to see you back, Quinn. You do some amazing work on parts my big hands would have trouble dealing with. I don't believe my old South Bend lathe would be able to deal with the parts you make. But it sounds like fun trying.
My bets, you alter it and make it work just fine. Machining and farming are all about solving problems as they arise or are at hand!
Great video on machining of cylinders, for beginners it’s one of the hardest jobs to know how to create the setups and you have done it in a really interesting way. I see your comment regarding 4-6 weeks etc so all I’ll say, hopefully not seen as rude, but 20thou won’t matter if you lose that in the steam chest. Or if your steam chest wall was 20thou thinner, I’ve got 10 locos on the go in the workshop so talking from some experience, it won’t matter so don’t lose sleep over it! Look forward to the next instalment.
I got ptsd from chips on the vice while rotating the collet block at 18:35 😂
Currently in my house in China with jet lag and a cold… 1:30am and this is very much needed entertainment! All your videos are simply superb Quinn! Thanks so much for building this! I can’t wait to see it running! (The steam cylinders and Walschaerts valve gear are my favourite part of any loco, so I’m really going to enjoy watching you build these!!!)
What kind of job do you have in China? 🤔
Missed you Quinn…Saturday night felt empty, listless and depressing…like an Edward Hopper painting 😂❤
Love the CEE mention! It is a bit comical when he gets to use some small tools and worries about breaking them.
I always enjoy your videos!! I'm just hoping that your shoulder is doing much better. Take care.
Hi Quinn,
I know you will make the correct decision on how to rectify the problem. Looking forward to the next video.
Where I work at we tolerance every single dimension on the drawing. No tolerance boxes in the title block anymore in the newer standard. We do GD&T per ASME Y14.5-2009. I prefer on every single dimension having a tolerance because it leaves no room for confusion.
I missed you last saturday, Had slight panic, depression , Turned to alachol for supplement LOL ,
Always nice to see a traditional facing cut.
I have a friend who great grandfather and his great great grandfather were both machinists and he has at least 100 boxes of their old notebooks and drawings and one day we were going through them looking for a drawing that each of them had done to frame and hang on the wall. Anyway one thing we both noticed was all the no standard fractional measurements that were used. The next day while going through some more boxes we came up a box full of scales, rulers, gauge blocks (both purchased and shop made) dividers, calipers, a 1” and 2” micrometer, along with some shop built measuring gauges. Seeing this makes me wonder if fractional measurements were not the rule rather than the exception prior to WWII. Additionally if I recall correctly Dave Richard’s made a comment similar to that a few years ago. Have a great day and a better tomorrow.
I have a content request if it isn't too late. That 4-6 week lead time may mean that it is. If so, that's ok. You probably already covered it anyway. But, it would be nice to hear what you have to say about the differences between scale models that are non-functioning, and those that actually work. The steam chest challenge seems to be a great opportunity to talk about that. It would seem that quite a few dimensions would be different between these two model types, since you aren't scaling, or at least not scaling to the same extent, things like pressure, heat, and other working environmental factors. Gee I love your videos and your patience that is on display.
That would be an interesting discussion. As an example, if you scale a steam engine whistle, it just does not produce the sound of a full sized one.
But a video on those differences in the working pressures in the valve chests, the pistons and so on would indeed be educational. For instance, the working pressures used in models are close to the real engines, so if scaled up either the full sized engines would be working with pressures around 2,000 psi or so.
I wholeheartedly agree with this. It would be such an interesting addendum, or even a whole educational video explaining the concepts and maths behind that(given how good Quinn is at explaining all kinds of concepts in an easy to understand way). A buttload of work tho 😁
I enjoyed the tolerance chat - I did start modelling another of Kozo's designs in SOLIDWORKS, one of the things that....limited my enthusiasm.....for carrying on was the dimensioning.
Oh the suspense! I can't wait LOL . as always love your videos, your narration and your expertise. I wish I had half of your machining skills.
14:24 Blondi got some serious guns to gradually bend the tip of that 4 jaw chuck wrench! Every time I see it the tip gets more and more twisted 😅
Nice to see you are ok take care
Great video Quinn, I'm sure it wasn't that close but 19:26 looks pretty close.
nice to see you back
Looking forward to seeing the solution.
Cliffhanger! I'm very intrigued as to how you're going to do the shaping cuts - my guess is using the lathe without it running?
hey! I live in a little SC town called Lyman lol. love your videos.
Love the CEE reference...Kurtis & Karen are great :)
and Homeless, and the birds, and the fuck off train!
@@levitated-pit/videos
Homeless is the best Good Boy!
Hey Quinn!
Lordy. The cylinders... on the big engines, this is the killer. If the cylinders aren't right... yeah.
I won't bore (hah) you with the thing you... clearly did wrong! Did you know UA-camrs don't meet their commentors expectations? lol.
On a very much more fun note, Brett told me he heard in an interview of James May (some dumb British car UA-camr/Presenter/... jesus christ, it's James May!) that James watches your channel... if there was a higher honor, I couldn't think of it. Maybe Adam, of course, but he'd be into it... Or so we'd hope.
Holy cow!! That’s amazing. I love James May. Such a great presenter and all his YT content is really fun too. I was a big fan of Top Gear back in its prime.
Quinn great work
Welcome back, thank you for the video, great as always!
Happy to see you back!
Well I _was_ going to go be productive, but it can wait a half hour or so. 😊 I'm glad you're put back together too.
Glad you are better!
Thanks Quinn
Quinn leaves on a cliffhanger!!!
My comment is simple. Imagine this is a real locomotive shop, and workers come up to you asking, "Should we scrap this huge casting with hours of labor into it already, or slightly modify the attaching part to fit?" I can tell you what any shop foreman in his right mind would say.
I'm confused re 9:05, because it looks to me like they're machined identical and one of them is just held at 90 degrees versus the other?
Like an Agatha Christie novel...leaving us hanging .
Great video...cheers
Does she or doesn’t she? A machining UA-cam cliffhanger! No matter what you decide it will be the right choice for you. Keep on top of any leaks from your production crew. I’d hate to have this spoiled.
Ngl, this is the main article I’ve been looking forward to seeing you tackle on this loco project! Fantastic as always!
You could make the cylinder head with a added volume i guess? Really interesting to follow you! Basically from the start 😊
I'm glad you turned that washer around, that was bugging me on the lathe. Glad it only left a minor mark on the face, bet it put a look on yours too.
I was annoyed with myself for that one 🤨
When trying to make the front face parallel to the back one, could you have put a piece of wire or cylindrical stock horizontal between each vise jaw and the part so that there would only be a single line of contact with each jaw? I suppose those two "lines" would need to be at the same height.
Need to fire up a small foundry Quinn. Reclaim the scrap!
CEE! Love their vids.
When using the large drill bits to remove material from the inner surface of the cylinder you mentioned that a flute on the drill caught the edge and wandered off center. I'm not a machinist by a long chalk, but would it help starting the bit if you chamfered the inner edge of the cylinder just a bit before you inserted the bit? Perhaps a slight chamfer the same angle as the cutting end of the drill bit would help prevent that issue? Just wondering...
Yes, the chamfer angle needs to match the drill and the diameter needs to be slightly bigger than the drill and the depth of the chamfer should be minimal. This way the chamfer will guide the drill, this is the way that 4 fluted core drills work as well, they have no chisel point to clear the material in the center. They have a thicker web as well to reduce wander. For using core drills as step drills you have to just make a new larger chamfer for each or use one large chamfer and pray the core drills 4 flutes are ground correctly on each of your step drils. A bit hard to off hand touch up or initial grind but I am sure Stefan G can manage this... want to guess why they are called core drills, and when they started being made? I attempted to use a search engine to get a link, forgot core drills are also called that to extract a sample for testing, in the ground, in a Billet or initial casting to check for internal structures, a pain. Good luck+
Edited for Stefan's name spelling, sigh, Voice to Text still sucks
Glad to see you back. I hope the flipper feels better. 😊
Kurtis will be impressed lol
Hahaha, love your inspection by "myeyecrometer", much like when in my electrical career of installing conduit racks when we would say 'looks good from my house'. One can never have enough extra material for a project - 'it will get used' (somewhere).
I rhink Curtis may have a baby biring bar like yours. A few years back he bought a lathe that had bunches and bunches and bunches of stuff packed with it. Among that stuff was some small boring bars. I doubt that he uses them, but he has them. Maybe he will break them out when he's building the new cab for the crane.
Quinn's back! 😄
If you think CEE has a boring bar, check out the range at HAL Heavy Duty Machining Australia. The Kraken, Kong and The Beast.
Fantastic to see a new video, I was getting a bit worried when we didn't get one last week. Wonderful as usual
There she is!!!!
OOOh it's that sit down with a mug of tea and think moment . Happens to all of us but mostly to me.
Hi Quinn, just a question. Wouldn’t it be possible to mill that side until it is clean, and then solder a strip along it to bring it back up to the needed width?
use the casting, i have done alot machineing on casting for a full scale traction engine. from the orginal drawings with where 104 years old, there where no tried up size. you have drawing, made the next part fit until the engine was complete.
Whoa when did you make that awesome huge lathe chuck key? That's a beauty.
Hope your feeling better quinn
QA will hold the part pending Liaison Engineering review and disposition. Likely "Acceptable as is".
Do you need the copper soft jaws when mounting the mandrel in the 4 jaw chuck?
I'm interested in how you would have solved it if you *had* discovered this before you started machining. Was there enough excess material elsewhere in the steam chest base in order to solve this by rotating the part around the mandrill so that the required dimension could be hit, or would another solution have been neccessary?
As always, awesome to have you back. You were missed!
Ugh... That's no fun, to put in all that work and then have one edge of the casting not work out right. That's one of the reasons I decided not to go with the casting. I don't know that it saves you much machining time. And you always have the difficult time of figuring out how to hold the casting and figuring out the best place to start machining, never any fun to find out you should have moved it 20 thou to the left before you stared. 🙁 But you already had the castings. If I'd had castings I'd have probably done the same.
Did both cylinder castings come out the same 20 thou off? Or was it just one of them?
I have no doubt that you've already got a great solution and I'm excited to see what it is. Looking forward to the next exciting installment of your Pennsy A3 Switcher build!😊
Hope you're all OK, Quinn? Missed you last week!
Yah I would definitely not have used the castings if I didn’t already have them. They were more trouble than they were worth. The other casting did clean up in that spot, but just barely. So these castings are stingy in that corner for some reason.
Hi Quinn, could you mill that undersized dimension down a bit more and silver solder on some filler material, then mill it back to spec?
Edit: I see you've already resolved it... Can't wait to see the solution
Your mention of CEE reminded me of a comment Kurtis made in the outtakes of the video where he made a large boring bar - "look at the size of that f***ing thing!"
Can you add some bras/bronze by brazing?
Save the casting
And the cheerleader, and of course, the world!
cutting edge engenering is indeed another level qua size...lol
Nice too see you, shoulder doing ok?
Love to see the progress on the locomotive.
Port L? No, that's the port port!
I wonder if the castings were handed to begin with which caused the issue... You would think if they were they would be marked it some capacity though
It's mentioned early on that the castings are handed!
@@alun7006 the way it was mentioned is that they had been handed (because you need a left and a right one). Not that they were handed when they were cast. Looking around 1:25 they look to be very uniform on both sides, so doubtful they were cast handed.
Hi Quinn, nice to have you back, I hope the shoulder is alright again. I have a question: Since Kozo was from Japan and Japan is a metric country could it be that the weird fraction you seee in the drawing be conversion related? I know that you get weird numbers when convertig metric to imperial or vice versa
Your mistakes look better than my best work, and that hurts.
What is the RPN calculator app you are using, it looks like an HP scientific calculator?
That’s CoderCalc, one that I wrote (modeled after an HP, you are correct 😄). You can find it in the Apple App Store
@@BlondihacksDo you have a link to it? Search didn't bring it up.
Just checked and it’s not in the U.K. AppStore
Apologies all, looks like it is gone. I don’t remember taking it down but I also haven’t thought about it for a long time. I wrote it many many years ago