Hi,
our machine works well for 0402, 0603 ... parts. Right now we have a placing job with some large 1206 capacitors. The placement is very poor (see image).



What we have observed:
1. The feeder works well and the head picks the component with good precision.
2. The component is aligned over the camera almost perfect.
...
Then the head moves to the position of the component, and during that movement the part gets slightly rotated. The components are repeatedly misaligned.
What can we do to tweak the process?!

Best regards,
Philipp

Hi,
we use CN065 nozzle. Placement speed is very slow (Take the chip speed). put delay is set to 1000ms, part height is adjusted correct (we have tweaked it with put delay 10000ms to see exactly that it fits with board height, nozzle, and part height).
As I said, the problem is a noticeable rotation of the part after camera aligment. Very strange...

Best regards,
Philipp

This can do because to vibration that occurs when moving due to the failure of the bearing of one of the coordinates X or Y.

CN140??
Sorry, i'm gonna be ugly, but:
Vision Placer manual (ver. 2.60)
page 54 > 0603-1206 CN065
page 87 > resistor 1206 CN065

page 87 CN140 outer diameter 2.2mm, inner diameter 1.4mm and
page 88 case 1206 width 1.6mm±0.15mm
Experimental measurements, width of the pocket in the paper tape ~1.8-1.9mm
It follows that
Outer 2.2mm versus 1.9mm - the nozzle is already on the tape.
or inner 1.4mm versus 1.6mm - that's not much margin for feeder tolerances
??