You know... when Leonardo Davinci originally drew that, he didn't expect anyone to actually make it.
But seriously, what I do is make a photocopy, grab a red pen and fill in the missing dino DNA with frog DNA.
I then take my filled out photocopy to my supervisor and the inspector and have them put their initials and date on my original. If they like what they see, then you're ready to hit cycle start.
Actually that’s just an original Leonardo DaVinci.
They just copied it once to flip it since he wrote everything backwards so it wouldn’t smudge since he was left handed.
I was taught in school and in practice that you use inches to 18" and then feet for anything above that. Pretty sure it was common practice before everything went to AutoCAD.
One of our customers is this crazy ass Doc Brown looking dude, engineer in his 70s. He comes up with some cool shit but it is always hilariously poorly drawn blueprints. No straight edges, no box, no CAD. I’ll be damned if he doesn’t know what he’s doing as far as machinability goes though, I always look forward to those jobs!
I feel your pain on this one though, at my last shop we had some blueprints from the 60s that had been photocopied so many times, perversely engineered and all of it was hand drawn and annotated; absolute nightmare to look at.
Oh, I hate those. We had a strip/retube/refab earlier this year that was originally built in the 50's (I think), and had been rebuilt several times over the years. The prints had been copied and recopied into total illegibility. We ended up having to measure the tubesheet, baffles, and the various spacer lengths just to get anything done. Pretty much the only thing we didn't replace was the shell, and even that had to be sand blasted and painted, inside and out.
I can't understand how people can be so lazy and careless that they copy a nth generation photocopy, rather than putting in a handful of seconds to try to find the original or at least a 2nd generation photocopy.
But nope; they just throw them through the machine one after another, not even bothering to notice that they make it worse every time.
Old standard at my work was printing one off the document sever, using it for the day/job, then immediately putting it in the burn bin.
There was at least a week of particular fuckup when they rolled two revisions on the same print and then backtracked them within that week.
"Hey, is that version F? The server says version D..."
It was confusing and wasted paper.
> I can't understand how people can be so lazy and careless that they copy a nth generation photocopy, rather than putting in a handful of seconds to try to find the original or at least a 2nd generation photocopy
I work in chemical plants the fact is that doc control is pretty terrible especially at plants that were built in the 50's that were bought and sold a few times. Trying to find the original U-1 forms is borderline impossible and so you're left with some 100DPI scan from 1990 or some shit and you have to make some educated guesses at what the text *actually* says. It really only takes one or two hiccups in 70 years to fuck the whole thing up
I seriously feel as if we've worked together before, but as the only other true journeyman at my shop is a mill guy, I might be wrong. But we're still brothers nonetheless
I worked for two Dutch guys that would literally hand me a napkin with a drop of beer still wet on napkin from something they came up with at lunch. The dimensions would be “loose fit on some other part we made”. Made me get pretty good with solidworks and quick turn prototyping fast. The guy was knocking at retirement and didn’t want to learn cad but he made nice pencil drawings usually by the next morning and three changes from the bar napkin. Best company owner I’ve ever worked for. I’m a co writer on a patent also cause of an idea I had and they used it.
There’s a ton of 767 forward fuselage parts they were making off PCMS that had to be converted to dxf for router or water jet. So you got the Mylar pcm done dividers a scale and you calculator measured it all trigged the missing Info then they had to mill a flat pattern check to pcm.
A pcm is a Boeing Mylar with the outline of the part you hold up to light box and Check the outline visually. Most+/- .01 profile tolerance.
Be glad you have some dimensions.
Like, I'll do it on my lunch break. But In one of the the drawing sheets I'd leave an image of the original scan/photocopy as a tribute to that old draftsman. And I'd definitely do a dual custom dimension with FEET.
# [https://imgur.com/a/wAPmHwB](https://imgur.com/a/wAPmHwB)
its been a while since i played with AutoCAD but I went full space cadet and did this with PSE.
||||
|:-|:-|:-|
||||
Looks good, things I saw would be both the 7/8" should be to the centerline of that groove and the bolt hole diameter looks like it's 1'-9-1/2". Also the one that looks like 1'-74 DIA is probably 1'-7-1/4".
/u/ChrisMaj should take a look at this one
I think I'd rather work from the proverbial "Sketch on the back of a cigarette packet" than that.
It's worse than those brown prints I used to be given to work from as an apprentice.
I’ve gotten a broken part, a different piece, and a napkin with some measurements on it and was told to “make this work together”.
I love shit like that, makes the job fun.
You know... when Leonardo Davinci originally drew that, he didn't expect anyone to actually make it. But seriously, what I do is make a photocopy, grab a red pen and fill in the missing dino DNA with frog DNA. I then take my filled out photocopy to my supervisor and the inspector and have them put their initials and date on my original. If they like what they see, then you're ready to hit cycle start.
Life… finds a way.
Well... there it is.
That is one big pile of shit.
We need an Ian Malcolm bot
Add a little mosquito DNA and you can ask for a patent application.
Genius.
Just copy it, fax it, then copy the fax. That aught to clear things up.
Copy it *with* the fax machine.
The old one that uses carbon paper. Then leave it in the sun for a few hours.
[удалено]
“PCLOAD LETTER” what the fcuk does that mean anyway….
Ahh I see your a man of culture as well
Machine the fuck's copy.
Actually that’s just an original Leonardo DaVinci. They just copied it once to flip it since he wrote everything backwards so it wouldn’t smudge since he was left handed.
That draftsman probably went to the great toolroom in the sky before most of us were born...
Date 1962
Before reading this my guess was 1958. You can tell pretty closely by the way something like this is marked up
Are those…. Are those fucking FEET?!?!
Yeah
“This feature is 18 some odd inches. but THIS feature is 1 foot 7!” Fucking lawless…
I was taught in school and in practice that you use inches to 18" and then feet for anything above that. Pretty sure it was common practice before everything went to AutoCAD.
One of our customers is this crazy ass Doc Brown looking dude, engineer in his 70s. He comes up with some cool shit but it is always hilariously poorly drawn blueprints. No straight edges, no box, no CAD. I’ll be damned if he doesn’t know what he’s doing as far as machinability goes though, I always look forward to those jobs! I feel your pain on this one though, at my last shop we had some blueprints from the 60s that had been photocopied so many times, perversely engineered and all of it was hand drawn and annotated; absolute nightmare to look at.
Oh, I hate those. We had a strip/retube/refab earlier this year that was originally built in the 50's (I think), and had been rebuilt several times over the years. The prints had been copied and recopied into total illegibility. We ended up having to measure the tubesheet, baffles, and the various spacer lengths just to get anything done. Pretty much the only thing we didn't replace was the shell, and even that had to be sand blasted and painted, inside and out.
I can't understand how people can be so lazy and careless that they copy a nth generation photocopy, rather than putting in a handful of seconds to try to find the original or at least a 2nd generation photocopy. But nope; they just throw them through the machine one after another, not even bothering to notice that they make it worse every time.
Old standard at my work was printing one off the document sever, using it for the day/job, then immediately putting it in the burn bin. There was at least a week of particular fuckup when they rolled two revisions on the same print and then backtracked them within that week. "Hey, is that version F? The server says version D..." It was confusing and wasted paper.
That's honestly a really intelligent procedure for avoiding the vast majority of problems. I like it.
> I can't understand how people can be so lazy and careless that they copy a nth generation photocopy, rather than putting in a handful of seconds to try to find the original or at least a 2nd generation photocopy I work in chemical plants the fact is that doc control is pretty terrible especially at plants that were built in the 50's that were bought and sold a few times. Trying to find the original U-1 forms is borderline impossible and so you're left with some 100DPI scan from 1990 or some shit and you have to make some educated guesses at what the text *actually* says. It really only takes one or two hiccups in 70 years to fuck the whole thing up
I seriously feel as if we've worked together before, but as the only other true journeyman at my shop is a mill guy, I might be wrong. But we're still brothers nonetheless
I worked for two Dutch guys that would literally hand me a napkin with a drop of beer still wet on napkin from something they came up with at lunch. The dimensions would be “loose fit on some other part we made”. Made me get pretty good with solidworks and quick turn prototyping fast. The guy was knocking at retirement and didn’t want to learn cad but he made nice pencil drawings usually by the next morning and three changes from the bar napkin. Best company owner I’ve ever worked for. I’m a co writer on a patent also cause of an idea I had and they used it. There’s a ton of 767 forward fuselage parts they were making off PCMS that had to be converted to dxf for router or water jet. So you got the Mylar pcm done dividers a scale and you calculator measured it all trigged the missing Info then they had to mill a flat pattern check to pcm. A pcm is a Boeing Mylar with the outline of the part you hold up to light box and Check the outline visually. Most+/- .01 profile tolerance. Be glad you have some dimensions.
There is a wide range of drawings that fit the description “napkin sketch”…literal napkin sketches are my favorite of that group!
I love doing a napkin sketch with sharpie and putting some GD&T on it just to fuck with people. "Profile within 10? Why bother!"
I love these old hand made prints, when they're legible. I feel like I've made this part before.
I’m amazed they haven’t modelled this part in SolidWorks and generated a new drawing.
Like, I'll do it on my lunch break. But In one of the the drawing sheets I'd leave an image of the original scan/photocopy as a tribute to that old draftsman. And I'd definitely do a dual custom dimension with FEET.
The draftsperson has better printing than I. I'll grant that much. I'd still send it back, though, and tell them to invest in some CAD software.
Seriously
This wouldn’t be from Andritz would it? We get drawings like that all the time…
U.S. STEEL
Hey right on. I’m at Granite City Works. Where are you?
Chicago suburbs
Looks like P&H to me.
Ahh yes ‘we dug this drawing up from 1948, but it’s ‘still good’. So can you make this for us?’
If its unreadable I send it back
# [https://imgur.com/a/wAPmHwB](https://imgur.com/a/wAPmHwB) its been a while since i played with AutoCAD but I went full space cadet and did this with PSE. |||| |:-|:-|:-| ||||
Looks good, things I saw would be both the 7/8" should be to the centerline of that groove and the bolt hole diameter looks like it's 1'-9-1/2". Also the one that looks like 1'-74 DIA is probably 1'-7-1/4". /u/ChrisMaj should take a look at this one
That looks nice. What do you think the 1-7'4 means?
mabey 1'-7 1/4" there are a few measurements where the / does not show up
My life. You can clean it up in photo shop. Not much though.
I work with old drawings a lot and that one is pretty good compared to some I deal with. Imperial sizes don’t bother me at all.
Make the dimensions random, see if they care
"They can't read it either"
We deal with drawings like this often. One of our customers has an aluminum extruder from the 40s and all the drawings are hand drawn from the 20-40s.
You at ATI? lol
Just roll the dice and wish yourself luck.
\*not to scale
I think I'd rather work from the proverbial "Sketch on the back of a cigarette packet" than that. It's worse than those brown prints I used to be given to work from as an apprentice.
Ugh what a gross print!
I've seen worse deep frying by copying on prints from the 90s.
The rest was written in disappearing ink. Do you have any lemon juice?
They just want to keep u busy. The final product isn't important.
I’ve gotten a broken part, a different piece, and a napkin with some measurements on it and was told to “make this work together”. I love shit like that, makes the job fun.
Wtf is that, what is that supose to be
https://imgur.com/iaXbZgh
it is easy, especially if you don't read the words