Worked for a plastic injection and die cast mold company, the boss drew the prints. One day I'm laying out waterlines for cooling and see that they go through bolt holes for inserts. I point it out to the boss and get told those prints are just a guide, you guys have to catch these things. Which I replied that is what I am doing, after he realized I had not already drilled the holes. Talk about a mickey mouse out fit spent 5 years learning how not to do things, which was beneficial in the long run.
I remember back in 2005 or so being handed a print with errors. I questioned the print and was told to build it to the print, needless to say that part did not function but it was to print. Good advice on dissimilar metals, not many younger people think of that.
I was an FNG and got a print that wasn't right. Supervisor said make it to print so that he could go to the comedy club and show them how wrong they were.
@@ypaulbrown And never forget 1/2 are left handed. I twisted 2 off of my first jeep @ 18yo, then My dad asked me a question, resulting in the answer to the problem. My jeep was a '48 PU, my Dad previously had a '46 CJ, so He asked if I might have been using the 6' cheater pipe in the wrong direction.
I'm curious if you ever knew Ruben Hendricks from Delta Junction? He was my grandfather and passed away in the early 90's, but given the relatively few people up there and your line of work it seems likely. He moved up there in the 70's to work on the pipeline, then setup a repair shop (autos, trucks, equipment, etc) in Delta. He and his second wife opened I think a Napa later on. I spent the summer of '78 up there. Lots of fond memories of that.
After decades in the trade you know that some engineers are receptive to machinists opinions. And others are the King with machinists being the lowly peasants who DO NOT question the King! F those "kings"
We run into engineering mistakes like that quite often. I'm working on a part at the moment, its a ladle hook for a steel company . 4 of them actually. The print i have shows an isometric tolerance on the bore's of 230 millimeters H7/r6. But the bushings have a standard tolerance of + .002" Why would they do this ?!? Also, this engineer decided to leave me over 3 inches to bore out of these hooks. They should have been flame cut to within half an inch !! I've got a gravy job i guess for the next week or so. 😅
A lot of upper managment cannot approach the design engineering dept because they simply do not know what is going on. With excuses “I’m not going to sit on the phone for bla bla bla “ This one time I insists till I got my way and was told ok you phone. I asked right away who detailed such and such print. Talked to the lady and in about 2mins she knew exactly what I was talking about. And it was fixed in about the same amount of time. So for a six or seven minute phone call I saved them a mountain of headache and time. A lot of times the engineers miss an error and just rubber stamp the print “revised” because they don’t want to be held accountable for “approved for construction” And the detailer can’t tell there’s an error because they can’t do the practical application. So when I explained it to her she understood without getting the engineer involved. Our construction super couldn’t believe it till fax machine started printing out the revised print about 15 minutes later Lol When he stormed out of his office with the new print I was well on my way to building it right. The on going joke for us when we caught an error was “you’ll just do it your way anyways“ 😂
Did you notice that if it was harder to cut? Steel has a BCC crystal structure and when it is that cold, I'm sure it is below the ductile to brittle transition temperature.
Nothing beats an old school vernier caliper. Any measuring devise is good for comparison. I have been doing this for 44 horrible years. An old school machinist from Detroit michigan.
having worked on bronze bushing replacement a while ago, --35 to -38 for most of the job, we had some similar issues. the hole was bored to size on plans in situ but bushing was made indoors and after a day outdoors... oops, not a great fit.
Being in the printing industry for about 30 years I can tell you things like that happen more than you think (all the time). One time we were doing a simple 'while you are at it' job (business card) for someone ordering a bunch of other stuff. The 'hands on' owner never noticed the *&^%% company name was spelled wrong on all the cards for years. They said they wanted them just like the old ones... I asked "you mean miss spelled company name and all?" Dead silence while he looked at them. Then just a quiet "no, fix it".
I was very impressed with my chinese diesel heater while thawing out my sewer line. Roughly -55 to -60 out and it only had a 4 second refresh rate. -Cameraman
That would be a good video bring a old lathe outside and do turning in -40 To see what chip breaking is like. And to see how metal cutting varies from room temperature and-40
A stripper plate made of 4140 36 inches long and a die shoe made of aluminum. The stripper guides on the die pins pressed into the aluminum die shoe until it’s 105 degrees in the press shop and now the pins (pitch) is.007 bigger than the stripper A coefficient 💩 show of dissimilar metals. I don’t like engineers…
