Electronics Forum | Fri Apr 02 16:31:18 EST 2004 | black5629
Why not use tooling pins (locating pins)? Sounds like the same accuracy...
Electronics Forum | Fri Apr 02 16:45:29 EST 2004 | cedams
Ken, You'd think so but the tooling pins only register to the drilling process for the PCB. The fiducial registers to the copper pattern and for both glueing and placing SMT components the pads are more important than the holes. That's why the machi
Electronics Forum | Sat Apr 03 19:58:53 EST 2004 | Ken
I have used tooling holes and fiucial registration since the late '80's. In fact if your maximum "vision" tolerance is +/- 0.05mm, your in the same ball-park as locating pins. It is true that fiducial registration is more accurate. However, I woul
Electronics Forum | Thu Jun 28 09:11:19 EDT 2012 | davef
I though this was a good article on picking a part numbering scheme and since you weren't getting any takes figured I throw this out there and maybe get a conversation going. Part number system: How to get started Filed under: Item and File Man
Electronics Forum | Mon Apr 12 09:39:38 EDT 2004 | cedams
Ken, Thanks for the feedback. Unfortunately (or fortunately) I am in Mexico and we make our own PCBs. That is another conversation entirely and another of my fix-it projects but currently we drill the PCBs and align the artwork to the holes visually
Electronics Forum | Fri Oct 03 05:55:14 EDT 2003 | kanwal324
Can paste height be measured by IR rays instead of Laser rays. Any tool available.
Electronics Forum | Mon Sep 08 11:38:52 EDT 2014 | spoiltforchoice
They key requirement before any fancy tools is careful storage, stock control, labeling and handling. If your parts are incorrect before they even get to production, you're screwed. As gregp suggests, to get consistently correct value and orientation
Electronics Forum | Fri Sep 10 11:45:09 EDT 1999 | Scott S. Snider
| scott. | I appreciate your sincere answer. | would tell me the hint about printer if i's possible | To tune our smt process we have to know what is the major X's | for defect. To know major X's with DOE we need a good measurement equipment.
Electronics Forum | Fri Apr 27 16:06:44 EDT 2007 | stepheniii
Why not add a laser pointer so we can also laser reflow the parts? And a hair dryer should handle the BGAs.
Electronics Forum | Mon Apr 01 17:50:31 EST 2002 | stefwitt
the good and bad days are normal results of statistics. You enter some variables like number of feeders, length of part numbers, day of the week, sexual satisfaction of the operator a.s.f. , you get some statistical distribution. It tells us that on
