Electronics Forum | Mon Jan 23 22:53:31 EST 2012 | davef
= 0.66 aperture opening to the stencil wall has been shown to provide the best transfer efficiency and repeatability of the deposited paste. Values from 0.66 to 0.8 insure a good paste release from the stencil. The biggest impact on area ratio is the
Electronics Forum | Mon Apr 26 08:15:37 EDT 2004 | pjc
MPM uses a one-print-Mylar system, as do other printer mfrs. In this system there is a Mylar sheet attached to a frame that is secured over the printer table with the board on it. You print onto the Mylar. The table X-Y-theta manual adjustments are u
Electronics Forum | Mon Apr 26 15:04:14 EDT 2004 | pjc
You are correct in understanding that the vision system comes into play for subsequent boards- to align them. Yes- if you missalign the first board and set the cameras to that board, all subsequet boards will not be aligned. Mylar is a thin polyester
Electronics Forum | Thu Apr 29 14:41:12 EDT 2004 | pjc
OK if the paper is transparent and you can adjust the table X-Y-Theta under the paper- without moving the paper - the align with the solder lands on the board. If you have a DEK or MPM machine, the Mylar frame is like $300. I belive other printer mfr
Electronics Forum | Mon Aug 03 07:14:38 EDT 2020 | bangir
Hi, How to adjust the table height of Screen Printing EKRA X5? Could you share me the Manual System Operation?
Electronics Forum | Thu Apr 29 10:49:05 EDT 2004 | pjc
Yes, using an illuminated magnifing glass helps. How well your board fixuring is on the table will effect print alignment on other boards loaded. 0.5mm & 0.4mm will require very good fixuring, like you can get with tooling pins if the board has non-p
Electronics Forum | Thu Apr 29 16:58:00 EDT 2004 | pjc
You should be able to get a one-print Mylar frame for the SMTech 90 machine from SigmaPrint, http://www.sigmaprint.co.uk Yes, with vision you store images of two features such as solder lands or fidicial marks from opposite corners of the board. With
Electronics Forum | Thu Apr 15 16:13:13 EDT 2004 | pjc
Best recommendation is to compare the two machines with your boards and stencils. Either vendor should be able to arrange for a �test drive� at one of their demonstration facilities or at a local friendly customer. I�m afraid that your request for �o
Electronics Forum | Thu Aug 13 19:23:06 EDT 2020 | kojotssss
Call +4 (Christian) Ekra screen printer specialist.
Electronics Forum | Tue Aug 04 04:20:36 EDT 2020 | bangir
Hi Chris, It's arround +/- 2MM. There was a gap if running pcb with thickness 1MM. The PCB position below the rail table.
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