Electronics Forum | Wed Jan 11 15:01:28 EST 2006 | jsloot
I have a samsung CP40 that is taking an average of 2.5 minutes to load a step program. My CP50 takes about 30 seconds. Both machines are configured the same in regards to the computers, both the operating system and internal CPU for machine functions
Electronics Forum | Mon Feb 27 05:58:57 EST 2006 | Rob
Chunks is right, in the main the termination material is the only change. However, plastics have changed & the ones free of nasty chemicals (polybrominated whatevers)are actually less temperature tolerant. Also some manufacturers do publish PBT (pe
Electronics Forum | Fri Mar 31 15:23:10 EST 2006 | jdumont
We have a C-740. I agree with the second pass statement. Be careful how much you overlap. Also make sure the board is very clean before you coat or its worthless. You will be able to get very accurate results without masking. Let me know if you need
Electronics Forum | Wed Mar 29 05:00:48 EST 2006 | rlackey
You could alternatively look at it another way - the customer asked how quick it would be to change over 20-25 feeders. All of the above machines have the capacity to hold at least double this, so the question is can you run the orignal product, w
Electronics Forum | Thu Mar 30 06:52:47 EST 2006 | smartasp
Hi Guys Just received a second hand (1998) MPM UP2000 Paste printer. Can anybody let me know about the tricky issues (not in the manual) to look for and what are the common spares we should have on stand by. Should we have an expert helping us inst
Electronics Forum | Tue Apr 25 13:05:08 EDT 2006 | Hoss
TMC, Are you interested in this approach because you only have a flat belt conveyor and want to keep the components from being moved by the belt on the second pass? If so, you might try adding some stiffeners to the board edges to stand the board o
Electronics Forum | Tue May 23 09:16:57 EDT 2006 | Steve
Had exactly the same type of issues. Tried everything from pre fluxing the pcb's , various ammendements to the oven profile and various pastes. Finally after a lot of help from multicore we settled on a paste by the code of cr39. A no clean flux wit
Electronics Forum | Wed Jun 07 22:33:50 EDT 2006 | Bolos
first: what is your problem after reflow? second: a good rule of thumb is a tolerance of 1 mil. for example..if you got 5 thou stencil thickness then your range of thickness is 6-/+1 thou.. then you just improve after you get your height data and ana
Electronics Forum | Thu Jun 08 03:40:32 EDT 2006 | aj
Hi, I use convection reflow and both top & bottom settings are the same. Is the part too heavy to rely on surface tension? there is an equation that can determine this (aswell as real test i.e. part falling off) We have some SIM Card holders on bot
Electronics Forum | Thu Jun 22 17:47:05 EDT 2006 | davef
First, we expect voiding in imm silver to be similar to ENIG. We expect more voiding in OSP than other common solderability protection. Second, choosing a solder paste, which does not contain resins and activators that decompose at higher temperatu
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