Electronics Forum | Tue Feb 06 20:57:44 EST 2001 | Kyle
The Universal GSM is a very accurate and repeatable machine. I have had one for the last 5 years and it is still repeatable to +/- .0015". I use a Robotic Vision Systems glass plate kit to check the repeatability. it has glass slugs and glass boar
Electronics Forum | Tue Jul 24 16:47:08 EDT 2001 | davef
Why are there so many repeated postings on SMTnet lately? The sheer volume of double and triple repeats is so great and spread across so many different authors that it's difficult to imagine attributing this problem to the spastics alone.
Electronics Forum | Tue Aug 19 13:35:51 EDT 2008 | stefi
Hello, I need an advice regarding the next issue: in the case of Assembleon Topaz or Emerald SMT machines, is there necessary to teach first the block repeat coordinates and after that the PCB fiducial coordinates when you do not have these coordina
Electronics Forum | Fri Sep 21 10:31:44 EDT 2007 | russ
this would be meaniung that somewhere in your documantation it should have spec called "repeatability" what this means is that when the vision aligns the stencil/board, the board will always be within "x" amount of the njominal xy "T" position, some
Electronics Forum | Thu Aug 21 19:18:47 EDT 2008 | duchoang
My steps are different in that case: 1- Check mounts. Try to adjust origin point until get the pretty good mount positions. 2- Teach fiducials ( Board fids, not panel fids) 3- Use fids, check mount again. 4- If OK, then teach Block Repeat. This alwas
Electronics Forum | Wed Jun 21 14:14:43 EDT 2000 | Gary Hunt
I need to construct test boards for which will be repeatedly subjected to Highly Accelerated Stress Screens, (HASS), and am looking for recommendations for materials. Would an Epoxy Glass or an Epoxy Glass Composite be least suceptible to exposure t
Electronics Forum | Wed Jul 25 10:34:35 EDT 2001 | akruppa
Dave, it does seem as though there are more than spastic hitting of the submit button can account for. We'll look into this and try to take steps to prevent repeats.
Electronics Forum | Thu Feb 28 20:37:17 EST 2002 | davef
What kind of "auditor" is this? Who does this auditor work for HP or CR Technologies? Maybe the auditor can quote 'chapter & verse' of the IPC specifications that state: * Inspection of any type is required to assure solder print processing repeata
Electronics Forum | Thu Aug 24 09:48:56 EDT 2006 | saaitk
We tend to screen paste to the BGA ball. This is quite effective although the repeatability of screening is not always great. Does anyone else use this method and how or have you managed to overcome this repeatability issue.
Electronics Forum | Fri Sep 22 11:51:32 EDT 2006 | chris g
Have you tried doing a short diagnostic test? That will check the repeatability and backlash of the axis. Did you use the C-tool when calibrating the camera?
