Electronics Forum | Thu Apr 08 08:34:34 EDT 2004 | Evtimov
The camera is in the head. Sorry forgot to tell you.Stefan now I do the calibration with inprint in a putty. Ken I am looking for accuracy when I calibrate the camera. Tell me more about that slug. What is it like? Where to place it? How to use it?
Electronics Forum | Wed Apr 07 09:59:23 EDT 2004 | Evtimov
Hello! We created a machine with full vision recognition system and we want to improve our calibration methods for centering the camera. What is not clear is how can we center the camera against the center of the nozel? I know you all use different k
Electronics Forum | Thu Apr 08 23:08:56 EDT 2004 | Ken
Well, the precision glass is for upward looking camera's. It essentially is a "perfect part". Vapor deposition lithography on glass (for Cte stability)....basically the part pattern (or part fids) is compared to its target location (same pattern on
Electronics Forum | Wed Apr 07 21:49:44 EDT 2004 | Ken
My favorite kind of calibration is where the machine learns what it did incorrectly. Then fixes itself! However, there are many types of machines that rely on human feedback as to the results of what it did. nozzle calibrations involve many factors
Electronics Forum | Wed Apr 07 11:36:41 EDT 2004 | stefwitt
Your machine will have to have a reference position. From this reference position, you determine all other machine positions. If the camera is attached to the head, you could place a glass slug and measure camera-nozzle offset, by placing the slug w
Electronics Forum | Mon May 07 09:43:22 EDT 2001 | martys
Which AOI imaging method is best for the post-solder stage- 2D or 3D?
Electronics Forum | Mon May 07 09:46:15 EDT 2001 | orbotech
3D imaging refers to the acquisition of images from multiple perspectives using, preferably, multiple sources of illumination, while 2D imaging refers to the acquisition of an image from one perspective. An AOI system with 3D imaging is able to acq
Electronics Forum | Thu May 10 13:58:26 EDT 2001 | tomgervascio
It sounds like 3D imaging is much better at fault detection for partially visible leads like SOJ packages. Can any of the 2D systems actually do a solderjoint inspection on the outer rows of BGAs or is the angle too acute to accurately look at these.
Electronics Forum | Wed Dec 20 22:54:28 EST 2006 | fastek
I think that in this day and age.....if you are not testing the feeder via some sort of indexing proceedure while the feeder is off of the machine.....you are simply not going to be certain the feeder is working properly. The Alternative SMT jig do
Electronics Forum | Thu Apr 15 20:41:22 EDT 2004 | Ken
There are ledgitimate reasons for checking furnace calibrations, but let me clarify what that is. 1. TC's are not necessarily calibrted. Not unless you need "absolute" accuracy. TC's operate against a (non-linear) standard +/- a tolerance. Most
