what is the approval meant for in the title block? is it just to approve the drawing or to release for production?
what is the approval meant for in the title block? is it just to approve the drawing or to release for production?
I am actually trying to develop a policy at our company. This is the reason I am asking what it means to other firms. thanks for the reply.
Generally it for a non-drafter(supervisor, customer, checker, etc) to look over the drawing and say 'This revision is good, proceed to production'.
Derrick Dry wrote:
what is the approval meant for in the title block? is it just to approve the drawing or to release for production?
Here those are the same.
Make it what fits with your company policies, if you have some one review the drawings to release for production it could be for that. Or if you require customer approval it could be that. Or if you require upper management approval it could be for that. I would say most of the time its the person who is reviewing the drawing which will then release it for production.
You mean someone other than the drafter looks at the drawing? Last place I was not even the shop looked at them.......
LOL!
It's totally diff. here at my company
it's long process from approve dwg to release for production
First approve dwg for sending out (quoting)
There might be some changes based on the suggestion from vendors - then there might be another approve with a new rev
Then approve dwg for making first articles
there might be again some changes after inspecting/testing - then another approve for 2nd articles and so on
Basically it needs few "approve" before it's released for production
okay - so a drawing can be approved but not released for production? how can you show that in a title block?
That's what happens when you put a note on the bottom of the page that says:
ALL INK ON THIS PAPER IS FOR REFERENCE ONLY
You don't show it in the title block, but in the revision block
Basically, the "approve" in the title block is for releasing the dwg from the engineering per revision
then the revision block should tell you the design process (from preliminary to release for production) - see below image
Does anybody here draft and approved drawings? I initial the "designed by" and the "approved by" on my drawings and was recently told that is not proper. by the way, i am the drafter and the project engineer So i am not sure why that is wrong.
You mean someone other than the drafter looks at the drawing? Last place I was not even the shop looked at them.......
lol - .... well said and a flood of memories - the only thing you missed was - that one of the welder/fitter guys was always hitting the sheet metal with his 2 pound hammer to get it to fit right, because the guy cutting the parts decided which side to round up or down the decimal places to a nominal dimension, so one part was one way and the other part could have been the other way... BANG BANG BANG made it fit every time, with big distortions in the corners etc... (Thanks for the memories, lol )
Here we have two approvals - one is a non Drafter/Engineer and the other guy is from our Manufacturing.. This really works well.
Of course we never make mistakes! LOL!
I would suggest if you have at least two people doing your drafting and design, the 'other' person be your checker. Your (my!) familiarity with what I'm working on might cause you to miss creating that required dimension or adding that section view. They might 'see' your clearance hole as not being the correct size. It could be much more than that too.
A fresh pair of eyes always helps. Then 'they' approve the drawing. In some companies it does go a lot further with manufacturing and quality approvals.
It is always bad practice to both create and check/approve your own drawings. The reason is that the person checking the drawing should have fresh eyes. If you are the one officially checking the drawing you just created, you are likely going to miss the things that you missed in the first place.
Here is a sample from our drawings (although I will admit that I have never actually seen anyone use the MFG or QUALITY portion):
Jim Steinmeyer wrote:
You mean someone other than the drafter looks at the drawing? Last place I was not even the shop looked at them.......
That's why I always say "I can put all the information in the world on a drawing, but I can't make them read it."
Of course it is the engineer's fault that it doesn't fit.
Yesterday i was asked to revise a part that required the hammer to make it fit. This part has been made and used at least a couple of times a month, and the last time the drawing was revised was in 2000.
Bernie Daraz has already mentioned the reason but I will reinforce it. To my knowledge almost everyone attempts to make sure they do things correctly. However it can be very easy for the person who created the model and drawing to see what he intended and over look how something actually is. I know I have often caught myself with the "but I know I changed that! Why is it still like before?". That is where a second set of eyes can be a big help.
17 years ?? - The first question I was thinking that I would have asked, are the shop guys getting worse or were the engineers dumb for the past 17 years..... Good card to have in your back pocket, if you need to play it later....
When I pushed back because it must have been working for the last 16 years they responded that engineering hasn't always been so responsive so they just made it work. Now they are getting pushed to get things done faster. I am seeing more of this kind of request so there may be some truth to that.
Yeah, I agree, checking your own work is not good. Invariably you will miss stuff.
In most companies, your co-worker checks your work. In deluxe companies they have a checker person. Hopefully that person isn't too picky/OCD.
Its always good to make a one page check list and check your own work before giving it to the checker. Checkers red-line the drawings and hand them back to you. You have to make all the changes or argue why you're not going to do the changes. Depending upon how well the drawing was made and/or the complexity of the dwg, this process could go several rounds. Simple stuff, but very necessary (if the project is big and complicated.)
Dan
When you can. Otherwise take a break when your finished with the drawing and come back to it in a few hours or even tommrow with fresh eyes. Not as good as getting another person, but when your working alone on a project....
Oddly enough, I often find mistakes while glancing at a newly created pdf of a drawing I created.
I usually see the mistakes while the drawing is feeding out of the printer . . .
Depends on the company policy who made the drawing. I've had were approved was for releasing the drawings for production and also to approved the design.