Electronics Forum: placement off (Page 8 of 55)

Black fiducials

Electronics Forum | Wed May 19 07:38:38 EDT 2004 | Cal

M.L. Feather- You may be better off using a square (rectangle) SMT pad instead of a Router hole. Since all the placement data will be referenced off the "fid" you use - placement problems could happen if Router holes are used as the router path can v

Mounting 0402 chips

Electronics Forum | Wed Oct 12 08:02:31 EDT 2011 | emeto

It looks like a nozzle size issue. Make sure you have the right nozzle size for the part as well as the right feeder.I think that if the machine takes the parts from the feeders, it can't be feeder problem. Usually parts will jump out of the feeder

Cycle Steel on Fuji XP141

Electronics Forum | Wed Jul 24 22:24:07 EDT 2013 | mac5

When we first got our XP1’s the cycle steal was on a schedule. We would have boards running good and then start placing off in the middle of a run. We finally noticed that the cycle steal had run just prior to the parts being misplaced. We have turne

Scrap criteria

Electronics Forum | Wed Sep 21 16:23:36 EDT 2005 | 14367

I was going to ask the same question. As was mentioned, it depends on the classification of product. If it's IPC Class 3, with a requirement for high reliability, I'd want the OEM manufacturer to have a defined statement on this issue for more that

Solder balls

Electronics Forum | Mon Jul 28 13:16:47 EDT 2008 | realchunks

Be careful of just reducing your aps. Too much can cause tombstoning if your print is slightly off or your placement isn't right on. Also be careful of the "pac-man" type of ap - it can lean to asty cuts if you wipe off your stencils by hand. Do

Nitrogen (N2) Costs

Electronics Forum | Fri Jun 29 10:05:12 EDT 2007 | wavemasterlarry

Great. first whinny people complaining about getting ripped off for buying cheap placement equipment (what did ya expect?), now political statements.... jeeezus, what's this forum turned into? Personally I'll vote for Pedro.

Juki / Zevatech PM575 Calibration Jigs Source

Electronics Forum | Sun Mar 10 16:16:35 EDT 2019 | sam512bb

Good day All, I was curious if anyone has a source for Juki/Zevatech PM575 Calibration jigs? My machine's placement is off and various a bit and so it was recommended to calibration the laser alignment. Sadly, there are no service centers located a

Juki / Zevatech 740 vision (VCS) offset calibration

Electronics Forum | Sat Mar 28 06:45:31 EDT 2020 | aswa1111

Hey everyone, I hope all of you doing well this time of the year. We have an old Juki / Zevatech 740 pick and place machine and we got a problem with the vision alignment, every placement is off by 2mils. How can you run an offset calibration on t

Tombstone 0402 Caps......

Electronics Forum | Thu Jun 02 14:50:41 EDT 2005 | techknow..

Placement looks good...paste to pad coverage good..correct profile used and verified by tracker. The problem being that this one cap is tombstoning at the same place every time. The placement is central. The part is near the edge at the break off.

Re: QUAD 4-C

Electronics Forum | Wed Feb 25 03:01:13 EST 1998 | MARK EDVINSSON

| We are facing some placement problems with | our QUAD 4-C. | Program was running fine last week, Next week | program will be off (placement, pickup,vision files | etc, | Any help, any idea,??? | Thanks To be honest with you those machine they never


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