drawoh,
Although it is true that much of the machining, if it be by drill bit, laser, saw or hammer is do done using electronic files. Still we in engineering are to follow that old rule which is, Engineering shall not tell manufacturing how to build it, just what to build. Thus is true for PCB...
drawoh sir!
I have been designing PCB for 30 years. Currently using Mentor Expedition software at Raytheon.
For what we call the drill and trim drawing, all the mechanical features are drafted to a drawing using traditional drafting standards and dimensioning, just as any other mechanical part...
hi drawoh, YES REALLY
I'm giving allot you of stars anyway!
Of course PCBs need to be dimensioned not only for MFG but QA. I need the dimensions as well.
I receive a drawing from an ME, and use that as instruction to draw the outline of the PCB and for the hole locations.
A PCB is Part of an...
Hi Drawoh,
I was certainly hoping to hear from you. Thank you for your response.
We worker bees don't always get to select the tools we have to use and the standards aren't laws they are guidelines. In the Printed circuit Board world where the designs are rather flat my argument holds a bit...
pylfrm,
Thank you for your response, and also for correctly translating my antiquated reference of ANSI Y15.5 into the correct and modern language of ASME Y15.5. My age has been betrayed.
Your point is well taken, that the standard is often difficult to understand, ambiguous, and subject to...
ORDINATE DIMENSIONING PER ANSI Y14.5 1998
REFERENCE:thread1103-169768
REFERENCE USERS: snowman64 and drawoh and Tunalover and MechNorth and TheTick and CheckerRon and KENAT and kbro15
In the original thread the question was asked:
snowman64 (Aerospace)
(OP)
3 Nov 06 16:55
In a drawing...
