Electronics Forum | Fri Jun 12 11:31:53 EDT 2015 | ngineer
We purchased an Ekra X5 at auction a while back to replace our semi-automatic stencil printer. We bought it knowing the following: it was running when removed, it had no manuals, screen or keypad (as I've seen on other ones). I'm trying to put toge
Electronics Forum | Tue Sep 22 14:23:42 EDT 2015 | travishemen
We had 4 of these machines several years ago. If I remember right the drive that aligns the board to the stencil was stepper motors with no encoder feedback. We would see the same issue if our leadscrews and linear rails were not clean and properly
Electronics Forum | Mon Oct 12 19:12:13 EDT 2015 | cusackmusic
Looking are "new" stencil printers. Have heard a lot of people like the Ekra. I see there are X5s, X4s, and X1s available all over the place. I can't figure out what the differences are. They seem similar, and are similar vintage. Any insight?
Electronics Forum | Sun Dec 20 08:15:15 EST 2015 | dilogic
Generally, that should not be a problem. Software for this purpose is pretty simple, the main issue is how accurately pcb carrier will be positioned at both ends. This is purely dependent on printer's mechanics. I have an old DEK247 and thought about
Electronics Forum | Sun Dec 20 12:42:57 EST 2015 | dilogic
We have DEK248 and Ultraprint100 printers. Ultraprint100 has custom video hardware while DEK has PC-based vision,which I prefer. Both perform roughly the same, and each has some design advantages over the other. We do routinely print 0.5mm pitch TQF
Electronics Forum | Thu Apr 21 19:41:35 EDT 2016 | adamjs
Hi, is there some sort of gas (certainly refrigerated, possibly pressurized?) in which printed boards can be stored to extend the allowed time between SMT paste printing and placement? Or other technique for achieving this? Background: we're a smal
Electronics Forum | Mon May 02 12:24:11 EDT 2016 | adamjs
One word: Dispense your paste That's three words! Unfortunately the board has nine LGA components. Stenciling is the only way to get the required consistency in deposit shape and volume. If the board were all passives+QFN I would definitely use a
Electronics Forum | Tue May 03 09:19:17 EDT 2016 | rgduval
I've successfully refrigerated a pasted board, and placed/reflowed it the next day with minimal issues. However, this is highly not recommended by anyone, anywhere. You might want to invest in a stencil cleaner...might be the same time investment,
Electronics Forum | Wed May 04 00:04:39 EDT 2016 | comatose
Loctite's new GC 10 paste allows for some pretty extended print cycles. I was skeptical, but the stuff doesn't seem to ever dry out. I've had overnight print to place cycles work at room temperature, and they spec a stencil life of three days. Might
Electronics Forum | Thu May 26 12:00:21 EDT 2016 | swag
Yes - the frame is built to nominal per print then the tape pieces are placed into areas in the frame as required. I had the stencil house cut #'s into the frames designating each different size. When I cut the tape pieces, I put them on a large, s
