Electronics Forum | Thu Sep 29 19:45:23 EDT 2011 | edwaterfall01
The conveyor is programmed to turn off the belts and go into an error condition after 30 seconds if the board has not passed the output sensor on the conveyor. The intent is to indicate a board jam and prevent damage to the board or belts. On convey
Electronics Forum | Mon Oct 10 15:21:28 EDT 2011 | spitkis2
In my opinion, YesTech or any other company is not obligated to spend days or even hours on the phone with a 2nd hand end user. If it takes days (paying customer or not) they need someone from the manufacturer to be on the shop floor. YesTech c
Electronics Forum | Tue Feb 28 12:29:20 EST 2012 | richieoreilly
Hi All, I am currently looking at purchasing an SMT machine with 01005 and flip chip capability, We have a limited budget but have found some machine which may suit. Mydata MY100LX10e Fuji NXT, 2nd hand 2007 vintage, Yamaha YS12F Do any of you ha
Electronics Forum | Sat Apr 21 14:50:17 EDT 2012 | edmentzer
We are using SN100C in both our wave and selective machines and have very good results. We also using it for ROHS hand soldering. It flows better than SAC305, the joints are shinny just like Sn63/37. We are looking into using SN100C as our paste b
Electronics Forum | Mon Apr 30 08:34:08 EDT 2012 | almoore
We use a small surface mount connector that has two alignment pins to ensure proper alignment. It works fairly well. I'm thinking that this simple alignment solution might work well with lead less parts like a BGA or QFN. I can hand assemble QFNs
Electronics Forum | Wed May 09 13:19:53 EDT 2012 | markhoch
I'm with Dave on this one. In my opinion, it'd be much more cost effective to add an alignment legend. Speaking from experience, as I've hand placed many BGA's, all you really need to do is hit the pads. Even with Pb Free Chemistries, the part should
Electronics Forum | Tue May 08 21:25:06 EDT 2012 | bigdaddysoy9
thomas31, We have been using Vi Technology 3k3 and 5k machines for about 5 years and have been very happy with them. They are easy to program, mechanically robust and have good support if you need it. If possible, you should narrow it down to
Electronics Forum | Sat May 12 08:58:23 EDT 2012 | davef
On mixing paste: There could be a lot of hand wringing about the need to minimize solvent evaporation, flux separation, and chemical activity. [True alarmists will throw in oxidation of the alloy.] But I think the real concern is a change in viscosit
Electronics Forum | Tue Aug 07 04:51:54 EDT 2012 | mccabekev
We currently have a TRI TR7500 AOI machine we are happy with, and a Tescon flying probe on its way out. We are looking at getting at least 1 flying probe machine, if not an additional flying probe and AOI for another line. They are both used after SM
Electronics Forum | Wed Aug 08 09:10:55 EDT 2012 | davef
The boards are being soldered in the wrong direction. Rotate them 90* and your problem will go away. To demonstrate this further, rotate the board 180* and observe that the problem moves to the opposite side of the connector. I assume that in the
