Electronics Forum | Tue Feb 03 10:44:56 EST 2009 | lmartenson
We have been having problems placing a domed LED with a Mydata HYDRA. The pocket that the part comes in seems to have some slop causing the part to be picked crooked. We have been playing around with different custom tools. Has anyone had similar
Electronics Forum | Tue Feb 03 12:39:16 EST 2009 | markhoch
Not sure what your job quantity is, or how many total parts you have to place, but we've had similar issues in the past trying to place domed LEDs. We had better luck cutting the tape into 25 or 50 piece strips and using double-sided tape to put the
Electronics Forum | Tue Jan 11 17:19:15 EST 2005 | vickt
Clark, Which component type are you using? Deform? also, is this a domed led? and if so, are you using a nozzle with an approriate ID to seal on the body? Not every LED may be able to be placed with a 4791. Todd
Electronics Forum | Tue Aug 01 09:45:58 EDT 2017 | dontfeedphils
Are you using a custom nozzle meant for the domed LEDs? If not, that should help quite a bit and are less expensive than you may think.
Electronics Forum | Wed Mar 13 09:11:48 EDT 2013 | smt_guy
Hi All, Need your advice / help. We have assembleon pick-and-place machines and we got some pick-up issues on certain LED's that are Dome Type. The LED's get off from the tape pocket during feeding due to the dome of the LED sticks on the tape surfa
Electronics Forum | Tue Aug 01 09:27:13 EDT 2017 | tmennink
Hi all, We are having a lot of trouble with mis-pick trying to place silicone dome LEDs(3535 package) It seems that the silicone of the LEDs is sticking to the side wall of the carrier tape pocket. The vacuum nozzle would normally suck up the led an
Electronics Forum | Mon Apr 18 19:58:22 EDT 2022 | cbeneat
I had the same question. We have custom nozzles made by Count on Tools. I believe we found urethane works the best for the silicon domed LEDs. Have you slowed the feed rate down on the feeder? Also adjust the top tape to the back slot on the feeder.
Electronics Forum | Fri May 13 22:16:16 EDT 2022 | alex22
Indeed, stickiness of LED dome varies from batch to batch. We didn't have much success with adjusting pick&mount settings. Also, usage of other nozzle (recommendation from SMT manufacturer) didn't help. Usually, we have a good experience with similar
Electronics Forum | Tue Aug 01 11:23:56 EDT 2017 | OrHorti
We are using a custom made nozzle, designed for this particular LED. The dome of the LED is also custom made, the diameter of the lens at the base is 2.9mm while the substrate of the package is 3.3mm, so this gives about 0.2mm spacing between lens a
Electronics Forum | Tue Aug 01 16:29:01 EDT 2017 | tey422
Try the method I mentioned earlier, it greatly improves most of the picked-but-drops issues. We never need to use any custom make nozzles, even for the trapezoid dome shaped LED we were having the issue with. Use smaller round diameter nozzle would
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