Electronics Forum | Wed Mar 03 04:26:58 EST 2004 | Evtimov
Hi Chris, About marks detect: If you have vision system you can recognize the fids and not center them manual. If only camera you have to put the center of the camera in the center of the mark.
Electronics Forum | Tue Mar 02 22:40:52 EST 2004 | pdeuel
To clean up other replys I will add that some most all machines have global correction. Most placements are an off sets from pcb 0,0 usually the lower left corner of the board. When the machine locates the fiduitals and these fids are not exactly whe
Electronics Forum | Mon Mar 01 20:53:28 EST 2004 | Ken
How does a fiducial work? I am going to venture a guess as how it ralates to the parts you are trying to place... A PCB fiducial is a landmark. The fiducial tells the machine where the board is located in the machine. A single fid can only deter
Electronics Forum | Sat Aug 20 15:08:32 EDT 2005 | Jaya
HI Darby & Danny. Thank YOu. I have got the information. With your help,I u'stand and start asking my supplier to run the boards with glb fid's which also accept by Customer. regards Jaya.
Electronics Forum | Sat Dec 11 11:01:11 EST 1999 | Mark W.
In answer to your question no. Fiducials should always be as far apart from each other in both directions (X,Y) as possible. This will allow ANY placement machine to calculate the EXACT location and rotation of the PCB, and therefore correct the moun
Electronics Forum | Thu Jul 23 13:28:55 EDT 2009 | pnguyvu
Hi PPM! Have your stencil house mark fid with laser machine - that how we use to have fid mark once it marked with laser it last very long time like stencil's life. Good luck! Steve USA STENCILS INC
Electronics Forum | Tue Dec 07 21:38:54 EST 1999 | Sosina outry
Correct me if i am mistaken, I always hear the circle is better fid mark than any. Due to shape and dimension, one value of diameter is needed while square you need width and lenght. beside whichever fid mark, the accuracy will base on cad and techn
Electronics Forum | Fri Sep 23 03:10:03 EDT 2005 | dougs
Sounds like your using global fids, if there are marks on each board use local fids and that should help.
Electronics Forum | Wed Aug 27 13:59:10 EDT 2014 | jimmyboz
Or else, as Dman may have been pointing to, duplicate the first fid sequence, and use it as the block skip mark, if found, then the next sequence is the fid it already found as a block skip mark....
Electronics Forum | Sun Apr 25 21:01:57 EDT 2010 | m79d
Hi all our IP1(1993)is not reading the board fiducials, the light comes on at the fid camera and stay on and the machine just hangs. Need to press the emergency stop button to go any further and screen says 'mark not readable'. None of the bulbs h
