hello - I was told today that I did not understand the use of perpendicularity - I have a piece that has 2 90 degree surfaces - the top surface is 10" long which is perpendicular to the front surface which is 36" long = the front surface is datum a the top surface is perpendicular to a within .001" - I was told that in this configuration that surface a could be out by at least .036" (.001"x36) - this does not seem right to me - I thought that surface b must lie between 2 planes within .001" perpendicular to surface a - I would think that if a straightness tolerance of say .001"per inch on datum a then that might apply - I just need to clarify it for myself - any help would be greatly appreciated - thank you
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Manufacturers are at a critical juncture. Either they evolve their product processes or get disrupted by new competitors who have been built from the ground up to develop complex systems and products defined by software. Download Now
Savvy engineers have eagerly anticipated the impact of virtual reality (VR) on robot programming technology, as it can dramatically increase productivity by empowering engineers to do their jobs safer and more efficiently. Download Now