Electronics Forum | Thu Sep 08 13:14:11 EDT 2016 | claudea2
Hello, we have an Ekra E4 that we bought used and the stencil wipe never worked. We found that the air tubing for the up (black)& down (blue) of the wipe roll is missing. There are 2 push connectors for up and 2 for down to receive the tubes. Does an
Electronics Forum | Tue Sep 13 10:00:27 EDT 2016 | awhite
Switched out the mech. relay on the board loader, no change. Same behavior. Could not find a mech. relay on the printer... SMEMA wiring appears go directly to a PCB. And it is at that point that I run out of talent. If the machine weren't dedicate
Electronics Forum | Sun Sep 18 10:40:19 EDT 2016 | sarason
First of all do a database or a spreadsheet with all the components and relavant details. Date codes, manufacturer. Abbreviated part no., Full part no, description, Then you can put them online on your own website. You may find a few sales of your de
Electronics Forum | Thu Sep 15 09:31:02 EDT 2016 | ladmo1
While removing one part, another part - BGA part - several components away, actually melted on one corner - you can see the plastic body of the part oozing out around one corner between the solder balls. Several of the solder balls on the one corner
Electronics Forum | Mon Sep 19 01:57:28 EDT 2016 | shriram
Hi guys, Problem: Mid chip solder balling. Component affected: 0603 caps only Defect is PCB specific (Meaning only one PCB is affected as the aperture is standard for that component). As a containment I'll give a home plate design for the compo
Electronics Forum | Mon Sep 19 09:16:24 EDT 2016 | markhoch
Hi Shriram, Are you saying that there is a trace running between the pads for this 0603 capacitor? If so, this design may be causing a gasketing issue between the stencil and the PCB. The uneven height prevents the stencil from sitting flat on the PC
Electronics Forum | Mon Oct 03 05:17:50 EDT 2016 | robl
2D SPI? Depending on the focusing height PTH inspection, or PTH solder joint inspection? Strip down if it has a granite slab in and turn into an engineering table for manufactured parts inspection? Stick a router head on it if you are really bored
Electronics Forum | Sat Oct 08 12:42:10 EDT 2016 | ttheis
Well I stand corrected; we tried re-printing mis-prints on Friday with our auto printer and indeed it worked out very well. I did let the paste dry up a bit on the mis-printed board while a few others went through to try and prevent smearing as it re
Electronics Forum | Mon Oct 03 05:10:19 EDT 2016 | robl
Hi Nikhilesh, It was a long time ago, but we used to buy the nickel in reels then had a cut and feed station on the smt machine with selectable sizes. We did many types of boards in very large volumes, and usually the Nickel strip was soldered to t
Electronics Forum | Tue Oct 04 20:31:16 EDT 2016 | davef
IPC-7721, Section 6.1, Jumper Wires, Jumper Wire Selection #5 states: "Recommended wire is solid, insulated, plated copper wire, 22 to 32 AWG with a heat resistant insulation. Wire with tin-lead plating may be restricted due to environmental laws."
