Electronics Forum | Thu Aug 19 13:29:43 EDT 2004 | davef
Things we�d like to have in a reflow oven are: * Small variation in temperature [+-2*C] from rail-to-rail. * Consistent temperature over time [3+ sigma]. * Thermal inertia / fast recovery to be able to respond to the effects of high mass boards. * Ra
Electronics Forum | Tue Mar 02 22:40:52 EST 2004 | pdeuel
To clean up other replys I will add that some most all machines have global correction. Most placements are an off sets from pcb 0,0 usually the lower left corner of the board. When the machine locates the fiduitals and these fids are not exactly whe
Electronics Forum | Wed Sep 04 10:10:10 EDT 2019 | jameshoward
I know exactly what your problem is as I have seen it many times. Your problem is with indexer 1 (the cylinder which runs up and down and actuates feeders on side 1). At each end of the travel of the indexer is a micro switch hidden down below the be
Electronics Forum | Tue May 23 11:06:53 EDT 2000 | Michael Parker
Kathy- Greater than 88%. Is that 3-D Nicolet? I had a conversation with Arline yesterday, she told me about your trials and tribulations with re-balling. I would like to suggest you try micro-stencil instead. If your BGA rework center has the capabi
Electronics Forum | Tue May 22 12:47:52 EDT 2007 | cyber_wolf
Is there anyone out there using this ? It looks like they only sell it for the 643 machines. Can it be adapted for 642 machines as well ? We have 2 major problems: 1. Operator makes width change adjust without removing supports from previous job. Ta
Electronics Forum | Mon May 02 18:54:28 EDT 2005 | MikeaJ
The answer you are looking for is part of your initial setup of the board and stencil. This information is to be found in the PCB setup menu/icon. The reason why the stencil loading pins are impacting the frame is because the default setting of the s
Electronics Forum | Thu Jul 13 22:20:38 EDT 2000 | Dave F
=10 mils larger than lead 3 silk screen legend text weight >=10 mils 4 pads >=15 mils larger than finished hole sizes 5 place through hole components on 50 mil grid 6 no silk screen legend text over vias (if vias not solder masked) or holes 7 so
Electronics Forum | Sat Apr 17 07:31:50 EDT 1999 | Brian Ellis
Cunli First of all, my message was intended to be forceful without intention of it being insulting or tonally "questionable". This is a problem with the Internet in that it is too easy to "flame" without the intention of doing so. Perhaps, your reg
Electronics Forum | Sun Aug 08 11:15:32 EDT 1999 | Earl Moon
| | Mike, | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo
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