Electronics Forum | Sun Feb 15 21:28:44 EST 2004 | Annoymous
Gridlok is good but it will also depends on your board. Board that is warpped and thick will not be flatten by gridlok as the concept for this support system is to conform to the shape of the underside of the board with very minimum upward force from
Electronics Forum | Mon Mar 01 01:03:27 EST 2004 | moncav
Hi, This is true if you are using the Grid-lok in the "full auto mode" which sets and resets for every pcb. Ohterwise you can teach the system a flat board (by various techniques) and it will maintain that profile throughout the product run. You sho
Electronics Forum | Mon Mar 01 11:07:49 EST 2004 | cyber_wolf
Depending on the volume, try making an aluminum pallet(s)with tooling pins to mount your boards on.
Electronics Forum | Fri Feb 13 18:08:06 EST 2004 | bman
We have recently aquired an MPM SPM stencil printer with an under stencil wiper. I have a list of approved solvents from MPM, but before I go and buy one I thought I would see what the fine people of SMTnet are using for their wiper solvent needs.
Electronics Forum | Mon Feb 16 16:23:32 EST 2004 | blnorman
We tried Ionox BC in our MPM, but evidently a feed line came loose allowing the Ionox to spray, flood, whatever on the inside of the machine. The Ionox ate through some of the insulation on the wires. As long as it stayed in the plumbing, it worked
Electronics Forum | Mon Feb 16 16:37:40 EST 2004 | adlsmt
I would try it dry first, we have never used solvents in our SPM, AP-20 or UP2000. Wipe every 4 to 10 boards. Normally dont have to wipe when using epxoy.
Electronics Forum | Tue Feb 17 15:38:18 EST 2004 | cyber_wolf
I agree with dry wiping. We have 4 SPM's and 2 AP25's, we have never had a need for solvent. I would be cautious using alcohol/ or alcohol based solvents.
Electronics Forum | Mon Feb 23 13:12:55 EST 2004 | Mark
I have used MPM 3000 and Dek 265 Horizon. We always just fill them up with regular old alcohol. Cheapest and easiest way to maintain.
Electronics Forum | Sat Feb 14 12:33:30 EST 2004 | agp
We are currently experiencing solder bursting in one of our smt reflow lines. Burst as small as 5mil diameter are messing gold fingers of the pcbs. Anybody who have experienced same problem? Would appreciate any suggestion.
Electronics Forum | Sat Feb 14 20:30:55 EST 2004 | Dean
What are your preheat rates? Try a slower ramp. A typical insurance policy is to kapton tape the gold card edge. If your problem persists, try baking the boards to drive the moisture out.
