Electronics Forum | Tue Feb 19 08:21:56 EST 2002 | jax
Armin, The obvious disadvantages for an in-line printer is initial cost and flexibility for smaller shops that depnd on high mix, low volume batch builds from their printer to support multiple projects at the same time. The advantage is quality a
Electronics Forum | Sun Feb 24 13:52:47 EST 2002 | bentzen
Hi Armin Printing equipment can be divided into two main groups; In-line and off-line. For "small" production sites an off-line screen printer should be adequate but for high out-put placement lines, where the product cycle-time is short, an in-line
Electronics Forum | Tue Feb 19 01:36:58 EST 2002 | djarvis
My Jimbos' (Drummoyne Dirty Reds Rugby Union Licensed Club)has, sob, just closed. How do I select a new one? Do I, for instance, start a spreadsheet and visit some new venues. What criteria do I use. Price of beer? Quality of beer? Access to bar to d
Electronics Forum | Tue Feb 19 16:34:15 EST 2002 | djarvis
Dave, Nice one. I was a roadie for Men At Works' tours to the States in '82 & '83. W had a crew t-shirt printed up that had on the front the musical notation for the hook in 'Who Can It Be Now' with the words printed underneath 'Who F.....g Cares'. O
Electronics Forum | Tue Feb 19 08:48:01 EST 2002 | wen1555
Payback can be calculated in many ways. The main issue is what revenue/margin you can secure from the investment. You need to decide the period in which the equipment will depreciate, I would suggest 5 years max. Obviously devide the total cost by 5
Electronics Forum | Tue Feb 19 19:33:44 EST 2002 | davef
Since yer talkin� $$$$, non-quantitative measure do not apply. I understand someone told you to do payback. But, we don�t use payback for multiyear projects. Regardless, the analysis is similar. For each machine, set-up a multiyear spreadsheet li
Electronics Forum | Tue Feb 19 14:00:55 EST 2002 | global
We have had some discussions about what causes parts to lift out of the holes when going over the wave on our flow solder machine. The machine being used is a Treiber (700 series). There are two bottom pre-heaters and one top pre-heater. We try to pr
Electronics Forum | Tue Feb 19 15:59:55 EST 2002 | pjc
Surface tension is a likely cause. Surface tension is a negative wetting force. You may have a solderability problem. Be sure your flux is properly activated according to the flux mfg. top side board temp. specification. When surfaces to be soldered,
Electronics Forum | Thu Feb 21 10:13:27 EST 2002 | Vince Whipple
Hi Dave G, This is an interesting problem.. I can only add the following: - Try trimming the pins and see it this helps.. sometimes the decreased surface area will lessen the surface tension enough to minimize the effect of bridging. - As Dave F was
Electronics Forum | Mon Feb 25 18:10:13 EST 2002 | stepheno
When you say "dropping" I assume you mean "rejecting" them because co-planarity is outside the tolerance you have set and the machine is putting them on the reject belt or tray as the case may be. I worked for a CM with an MPA-G3. One customer suppl
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