9 ms·

Do you use relays for the blowers? Can you use MOSFETs for more accuracy?

• jacquesm 7y ago
  Hm, never even thought that that might be a factor. Yes, it uses relays. I'm not sure how much belt travel will be off because of that, but given that it would be a constant it would likely already be accounted for a an offset to 'center of part' which is where I try to hit the parts to make sure they don't spin like mad.
  • StavrosK 7y ago
    That sounds reasonable, where you may have more luck with something more accurate is if you had to run the blower for a shorter time, or maybe pulse it to lower the wind speed (I'm not sure if that's possible).
    • jacquesm 7y ago
      The relay pulses are about 50 msec, that's mostly limited to ensure there is enough air to rapidly hit multiple bins in a short time, as well as to be able to 'pick out' a part from two adjacent parts on the belt without hitting the other two. That took a while to get right!