Electronics Forum | Thu Feb 27 14:02:26 EST 2003 | russ
Genny you are right on with the differences between suppliers/packaging etc... I am a CEM and you are correct that we pay no heed to cad rotations from our customers/designers. A.V.L./manufacturers P/Ns information specifies orientations and such.
Electronics Forum | Thu Feb 27 11:23:18 EST 2003 | russ
Machine rotation is usually based off of component presentation. for example an SO8 can come in either tape and reel and sticks. In tape and reel the component is presented to the machine with pin one at the lower left corner while the stick will hav
Electronics Forum | Thu Feb 27 11:46:47 EST 2003 | genny
We have struggled with this as well. Basically, we have a consistent rotation for all packages of the same type, but I don't think our rotation has anything to do with the actual rotation that the PnP equipment actually wants to see. I believe our
Electronics Forum | Thu Feb 27 11:05:49 EST 2003 | Chris
Hello, I am the manager of a Drafting department and don�t pretend to know too much about the SMT process. But I am the manager of a CAD designer so I am somewhat responsible for the following issue. So since no one else around here seems to have the
Electronics Forum | Thu Feb 27 14:41:48 EST 2003 | jax
Cad rotation should not change with relation to how the part is presented to the machine. It should only depend on how the part is orientated on the PCB when the PCB is at 0 rotation. There is a seperate field to input part rotation inside a feeder.
Electronics Forum | Thu Feb 27 15:13:35 EST 2003 | stockley
Oh dear, I tried not to respond but i couldn't help myself. Stop me if I go off into the woods. My guess, Chris, based on your fleeting reference to GF files, is that your SMT machines are Siemens Siplace. If this is so then package orientation def
Electronics Forum | Thu Jan 11 19:18:24 EST 2024 | madisreivik
Hello ! FUJI IP3 left head sometimes places component with rotation error. Vision processing SHOWS that component needs rotation Mechanical side is checked, looks fine. Also, changed servo, no effect. It happens randomly, maybe 1 part from 30. It
Electronics Forum | Wed Apr 22 05:33:06 EDT 2015 | mbb
We'have been working on an issue regarding aluminium capacitor placement in PCB. In fact, we have twisted (shifted) capacitors. Through root causes analysis, we confirmed that this phenomenon is happening during reflow process (no issue on placement
Electronics Forum | Thu Mar 15 17:50:18 EDT 2018 | sarason
Possibly a loose grub screw on one of the shafts controlling rotation or the sensor ot gray code wheel on the rotation servo motor. or even a small fault in the program eprom, Good luck sarason
Electronics Forum | Thu Mar 15 18:18:36 EDT 2018 | maustin
Yep, checked the nozzle (that was my first port of call). Had a look at it under our microscope, and also swapped it out for another nozzle to be sure. The problem still exists. You can set the theta speed, but only to Fast, Medium or Slow. I've
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