Author Topic: Placing domed 1206 LEDs?  (Read 620 times)

alanambrose

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Placing domed 1206 LEDs?
« on: August 02, 2018, 09:11:26 AM »
Anyone tried placing domed 1206 LEDs before:

https://uk.rs-online.com/web/p/ir-leds/1736274/



Specialised tool? Some other way?

TIA, Alan

Gopher

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Re: Placing domed 1206 LEDs?
« Reply #1 on: August 02, 2018, 04:19:38 PM »
Used to place similarly domed PLCC4 LEDs, to get as reliable operation as possible I countersunk the tip of a Nozzle and then adjusted the device height and Z pick offsets to compensate. I do much the same with our Essemtec machine except it has a Nozzle that shape by default, plus I suspect if I tried it a std one would work anyway. I can't recall the ID of the typical nozzles on the RV, maybe one of them fits quite nicely already?

alanambrose

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Re: Placing domed 1206 LEDs?
« Reply #2 on: August 06, 2018, 12:51:57 PM »
OK thanks, will report back.

Alan

alanambrose

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Re: Placing domed 1206 LEDs?
« Reply #3 on: October 03, 2018, 10:39:57 AM »
OK ... I ran up a couple of designs - one with a hollow to fit the dome and one with an o-ring (see below). I used the hollow one and as that seemed to work OK-ish I didn't get to use the o-ring one. That worked OK although I had to reset the pick location a couple of times and nudge the finished result around quite a bit. In hindsight I should have locked the pick location as the "pick location adjusting logic" will have been unstable with this shape of nozzle and component. This was all slightly nerve-racking as there were £350 worth and nearly 1,000 of the special IR LEDs on a board :)

Alan