Electronics Forum | Wed Sep 26 11:59:26 EDT 2001 | mparker
Electrically, the part still works, even if upside down. When upside down, you cannot see the part identifier. If you are an OEM and your QA/QC people don't freak out because they can't read the part, let it go. If you're a CM, your customer would
Electronics Forum | Sat Feb 02 22:58:15 EST 2002 | caldon
Yes, SMEMA is being used on Most newest SMT machines in line. The SMEMA Doccument can be down loaded free from IPC at http://www.ipc.org or http://www.ipc.org/html/fsresources.htm SMEMA1.2 is what you will need. This is a great doccument with wiring
Electronics Forum | Tue Aug 13 10:08:44 EDT 2002 | dougt
Tony, I'm in Ken's corner.....the speeds the manufacturers offer are pretty much meaningless when it comes down to your particular board. Brand X can say they will do 1,000,000 cph but when you put your board on the machine with multiple parts at di
Electronics Forum | Wed Dec 04 09:24:52 EST 2002 | jseagle
I have found that preheating the solder pallets prior to use helps cut down on the solder balling. Also, we do not cool the pallets between passes and we use a spray fluxer because a hot pallet will knock down the head on a foam fluxer. We use WS f
Electronics Forum | Thu Jan 09 06:44:38 EST 2003 | ldzaugis
One shop picked up productivity with walkmen. The hand assemblers were jammed in tight and frequently face to face. It cut down conversation significantly and reduced complaints about music in general. The policy was eventually changed to only one he
Electronics Forum | Mon Dec 16 08:19:20 EST 2002 | Randy Villeneuve
We trasfered a product in some time ago and they were using erasers to hold down parts. Some parts will move around during wave and some parts just need to be positioned correctly after wave so hold downs are required. I personaly have never used a b
Electronics Forum | Thu May 22 18:47:12 EDT 2003 | russ
I would assume we are talking about a radial leaded electrolytic cap? We use Electronic grade RTV (Dow corning 3145). It sticks good and can be removed if necessary. It is also pliable so you don't have to worry about CTE or other stresses that may
Electronics Forum | Wed Jun 11 15:59:11 EDT 2003 | stepheno
I've never worked on that machine but I won't let that little detail stop me from commenting. Are your nozzles clean, and have you checked your vaccuum levels? On every machine I do have experience on, management doesn't allow time for proper mai
Electronics Forum | Tue Aug 05 09:12:34 EDT 2003 | caldon
All of our PNP machine run on UPS back up. Though our machine controller is Dos and failry stable it is integrated with Windows NT who does not like to be prematurley shut down. We get a window of about 4 hours from the UPS. Remember this is just o
Electronics Forum | Wed Nov 12 15:48:36 EST 2003 | johnwnz
Thanks for the info Dave, the link provides very interesting reading! btw, JohnW and JohnWnz are one and the same, I've moved down to Sunny New Zealand to ply my trade / skills down here and have soem fun in the sun while I'm at it. A move I'd total
