Mike's Forums

Versatronics RV series Pick & Place machines => RV Hardware => Topic started by: alanambrose on August 02, 2018, 09:11:26 AM

Title: Placing domed 1206 LEDs?
Post by: alanambrose 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/ (https://uk.rs-online.com/web/p/ir-leds/1736274/)

(http://anagram.net/nuts/Versatronics/OIS-330.JPG)

Specialised tool? Some other way?

TIA, Alan
Title: Re: Placing domed 1206 LEDs?
Post by: Gopher 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?
Title: Re: Placing domed 1206 LEDs?
Post by: alanambrose on August 06, 2018, 12:51:57 PM
OK thanks, will report back.

Alan
Title: Re: Placing domed 1206 LEDs?
Post by: alanambrose 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

(http://www.anagram.net/nuts/Versatronics/Nozzles/Domed%201206%20LED%20with%20o-ring.JPG)

(http://www.anagram.net/nuts/Versatronics/Nozzles/Domed%201206%20LED%20without%20o-ring.JPG)