On 12/27/2015 11:37 PM, EBo wrote: > I was unaware that the AMT encoders had any lag problem. I > will need to look into that. I did a comparison of them, it should be searchable on the forums. I have some Halscope shots online comparing them to standard HEDS optical encoders. > I also did not assume that it was an encode issue, thought > if you could bump it up then you might be able to eek out > a little more res from your machine. That would likely be > at the expense of speed. I thought this was on a machine > you had code for, but I stand corrected on that, and as > mentioned in my comments that a rebuild was most likely > needed (meaning ball screws, rails, etc.) No, this is a stock commercial machine. It can do 4000 - 6000 components/hour, and is the size of an old VW bug. I don't think it was really ever meant to do .5mm or finer lead pitch components. It is totally fine for SOIC chips, and does OK for things down to 0.65mm lead pitch. But, some of my boards have 0.5mm lead pitch FPGAs, and the placement accuracy is marginal on those. So, I inspect with a magnifier and nudge the chips if the alignment is off. Since there's only one of these hi-density chips/board, that isn't too bad a limitation.
Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
