Electronics Forum: bad (Page 21 of 247)

Just wondering have anyone tried to build two/three same boards in parallel of one SMT line...

Electronics Forum | Wed Dec 09 07:14:16 EST 2020 | bukas

if you can set bad mark white=good on first machine, black=good on second machine and place same 3 components on them then all is left for 3rd machine not to look for bad mark but just to place remaining components. is board panelized? do some math a

Help TQFP welding problem

Electronics Forum | Tue Apr 20 12:28:46 EDT 2021 | kylehunter

I agree with DWL's comments. Also, your profile is really really inconsistent. How did you attach the probes to the board? You have a 25c delta in your peak temps. Unless that is from a probe lifting, that is really bad. What type of oven are you usi

Heller 1706EXL increased thermal cascade on last 3 zones

Electronics Forum | Mon Sep 27 16:52:48 EDT 2021 | aex

During production the temperatures on the last 3 zones are approx. 20F higher than the setpoint. The other zones are operating within spec. We checked power, I/O, SSR's, thermocouples, and exhaust, but the issue remains. We did not check resista

Choosing a printer...

Electronics Forum | Tue Jun 06 15:35:34 EDT 2023 | spoiltforchoice

> Spoil do you have any complaints about the > 710? Or is only Magyar that currently has a 710? > I might have conflated two comments. No I don't have a 710 (still on Semi auto :( ) , don't think anyone in the thread has said anything b

Re: Rework Equipment

Electronics Forum | Mon Mar 06 10:39:43 EST 2000 | Engineer

What's the bad rap on IR? I know that ERSA has a dark IR that they say heats evenly. I worry about the entire location being heated though.

Re: tombstoning after wave?

Electronics Forum | Wed Dec 13 06:08:48 EST 2000 | jackofalltrades

We have seen this type of problem. After eliminating possibility after possibility we corrected the problem by throwing out the glue and starting fresh. It was not expired, just bad for whatever reason, we could not asertain what went wrong with it.

Re: Disposing of old solder paste in wave solder machine

Electronics Forum | Mon Sep 11 16:11:50 EDT 2000 | John Thorup

Hello Craig In a nutshell - bad idea Please check the achives as this has come up a number of times John Thorup

Re: solder balling

Electronics Forum | Wed Aug 09 04:09:04 EDT 2000 | Jarno Py�ri�

Hello. I think, good stencil apertures is 80% from pad. And stencil thickness is 0.15mm - 0.20mm. I use 0.15mm thick stencil almost every pcb. Sorry my very bad english but i too learning. :)

Re: Rigid-flex PCB- Cu on non Cu defined area.

Electronics Forum | Wed Jul 05 20:50:42 EDT 2000 | Dave F

Hey KC roll-up IPC-A-600 and smack those bums on the nose with it and say "Bad fabricator don't do that on the floor again" in a firm voice.

Re: I need to know How HS50 and F5 works. Is it a good solution?

Electronics Forum | Tue Jun 13 06:04:47 EDT 2000 | mulitze

Hi! Do you want to know how the machine works or do you want to know something about the quality of the machine or placement? As far as I know, the quality of the machine and of the placement is not bad. Best regards.


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