Electronics Forum: locating hole (Page 3 of 20)

advice on used PnP

Electronics Forum | Mon Jun 29 15:52:00 EDT 2020 | jmelson

One last question, can the FLX2011 pick up a negative fiducial, ie. a plated through hole? Some of my boards do not have traditional fiducials, so I pick up the location of a couple mointing holes. (It didn't address this in the documents.) Thanks

SMT Connector, Placement Issues

Electronics Forum | Mon Oct 06 15:17:12 EDT 2008 | davef

Q1: You say that 0.008" of "slop" is un-doable; hence, the reasons for our failures. Any basis for that statement? A1: We're not even considering the accuracy of your placement machine. We base our comments on the gap between the hole and the connec

SMT Connector, Placement Issues

Electronics Forum | Fri Oct 03 10:24:17 EDT 2008 | chineechooze

I have a problem with placement repeatability and accuracy on this Samtec connector. The customer wants to use a "nubbed connector" which has to be placed in the corresponding PCB holes. When the nubs miss the holes, the part becomes "lifted." SEE

Reflowing a thru-hole part

Electronics Forum | Wed Sep 08 20:38:06 EDT 1999 | Barbara

I have a board that has surface mount on both sides . On this board is a 22pin connector which is the only thru-hole part.This part is located on the component side. I would like to reflow this part. Can this be done? If so, how can this be done?

Measling

Electronics Forum | Thu Oct 15 10:26:13 EDT 1998 | Dave Celestian

I have a problem with measling on our PCB's. We saw it on our FR4 PCB's at final assembly yesterday. Is this a defect from the board vendor or something we did in our assembly process when building the PCA's (thru hole). Could the wave solder mach

Dummy Pads for Bridging Problems

Electronics Forum | Mon May 11 16:09:07 EDT 1998 | Todd N

We are having continuous bridging problems with the trailing leads on a 26-pin D-sub through-hole connector. The pitch is 0.100". The connector is going through the wave at approximately a 20 Degree angle. Does anyone have any board layout recommend

Questions About Risk of PCB Delamination as a Result of Moisture Build Up After Damage to Solder Mask

Electronics Forum | Tue Apr 23 10:31:59 EDT 2019 | laserpro

Hi all and thanks for viewing my post! My questions related to the subject line are as follows: 1. Does the Epoxy Solder Mask Layer of a PCB protect against moisture absorption? Is this a primary function of the solder mask? 2. Does exposed FR4 na

Re: Reflowing a thru-hole part

Electronics Forum | Fri Sep 10 07:43:19 EDT 1999 | Christopher Cross

| I have a board that has surface mount on both sides . On this board is a 22pin connector which is the only thru-hole part.This part is located on the component side. I would like to reflow this part. Can this be done? If so, how can this be done?

Re: Reflowing a thru-hole part

Electronics Forum | Fri Sep 10 07:45:59 EDT 1999 | Christopher Cross

| | I have a board that has surface mount on both sides . On this board is a 22pin connector which is the only thru-hole part.This part is located on the component side. I would like to reflow this part. Can this be done? If so, how can this be done?

Need help with Philips CSM84 or YM84

Electronics Forum | Sun Mar 29 13:49:59 EDT 2009 | tpappano

Hi Peter, I'm a new user of a CSM84VZ, so I have only a small grasp so far about what goes on in the machine 8-) There should be two locating pins. One fixed and the other adjustable for different board widths. Small cylinders are coupled to the


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