Electronics Forum | Fri Oct 21 03:39:41 EDT 2005 | fastek
Exactly. Poor Olas is pulling his hair out over an issue that has no business being "standardized". The SMEMA guys with apparently way too much time on their hands couldn't simply stop at the communications protocol and leave it at that....they had t
Electronics Forum | Fri Nov 04 20:25:47 EST 2005 | mika
Always happy to share information. Perhaps other viewers on this thread, can get some ideas of "how to". /Sincerely Ps. There is a so called "standard height" which the conveours/machines from different manufactories must be able to reach; without r
Electronics Forum | Sun Oct 30 06:13:23 EST 2005 | mika
I am sorry for my poor english, but perhaps you will undertsand:-) The important thing is to get the conveyors straight: The front fixed rail must be parallel with the next one and also the heigt. The heihgt of the prior conveyour should be (but not
Electronics Forum | Tue Mar 30 12:10:31 EST 2004 | caldon
SMEMA is not just conveyor height. It also is Conveyor width, Edge Clearance, Tooling pins, Maximun Machine gap, and Lead in of conveyor. Additional, SMEMA is a machine communications Protocol for machine to machine or machine to conveyor communicati
Electronics Forum | Mon Mar 12 11:27:35 EDT 2007 | coop
I am not using a solder pallet, I don't think the problem is contamination related, because these parts are on some of our other assemblies, and they're being waved with no problems. The problem seems to be mainly on our panelized boards for some rea
Electronics Forum | Fri Jul 28 10:34:14 EDT 2006 | razor9114
Don't forget about Paste height measurement, conveyors, Aqueous Cleaner, Selective Solder machine and possibly an Ionic Tester
Electronics Forum | Mon Mar 29 17:55:39 EST 2004 | gregp
What is the importance of SMEMA compatability regarding height of the PCB during transport? Most machine manufacturers ignore this and simply give you blocks to put under the machine if you need them. My question is if all of your equipment was des
Electronics Forum | Fri Mar 16 08:01:53 EDT 2007 | ck_the_flip
SAC coated leads on certain components require more dwell time. If you find that you have top-side wetting issues, slow the conveyor down a bit or increase your wave height, or, a combination of the 2.
Electronics Forum | Thu Jul 14 11:52:16 EDT 2005 | davef
Sure you can use SPC charting on the wave setup parameters to warn of impending problems. Examples of useful points of analysis are: * Dwell * Temperature * Pot analysis Certainly there's a range of other process controls that could be monitored.
Electronics Forum | Mon Jan 20 03:13:34 EST 2020 | silverlead
Included screenshots from DEK manual, outlining stencil depth adjustment. Basically, distance from rear of the stencil to the front of the image is value needed to be set on scale when positioning stencil. There is an other way to adjust stencil, by
