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  1. Paulcet

    Help with a timer circuit...

    Brad, Look around the store there for a little book by Forrest Mims on 555 timer circuits. Radio Shack used to carry them.
  2. Paulcet

    Industrial Inkjet Printers

    Farzin, It's been a long time, but I think I remember buying Imaje parts from Marsh Micro Systems in Chattanooga, TN. Nice people. Not even sure they carry Imaje any more. http://www.marshmicrosystems.com/default.asp
  3. Paulcet

    MOV Failure Mode

    Buzzp: If you use a diode and 1K-ohm resistor as Skogs suggests, and if the diode fails as you suggest could happen, the resistor would have to dissipate over 1/2 watt while the relay coil is energized.
  4. Paulcet

    MOV Failure Mode

    Skogsgurra is right on the money here. To answer Buzzp's question on the failure mode of MOVs: I have only seen them fail short.
  5. Paulcet

    How does RGB create Yellow?

    With colors of light, the primaries are Red, Green, Blue. Green is not a mixture of other colors. To get yellow, you "mix" red and green. And no, blue can't go negative. I am no expert on this, but I do know pigment colors (Cyan, Magenta, Yellow) are not the same as colors of...
  6. Paulcet

    Industrial Inkjet Printers

    You may have quite a challenge in front of you. Probably the easiest way to get all that information would be to apply to be an "Authorized Service Center". Other than that, try to recruit someone who has worked at a service center. When I was working as a technician in a food...
  7. Paulcet

    Can I get some help to make an automatic light-dimmer

    Gandalf, A similar function was on an old Honda Prelude I used to have ('85). It came on instantly, but faded off over a period of about 5 sec.
  8. Paulcet

    How does a Motorcycle Sprag Clutch work?

    Try http://faq.f650.com/FAQs/SpragClutchFAQ.htm
  9. Paulcet

    Transformer soft start

    I once had an application where the transformer inrush current was a problem. We used 'current limiting' fuses in place of the regular time-delay fuses. Maybe that would help?
  10. Paulcet

    setting zero on an encoder

    I think MechEng is right about reasons for the encoder/resolver. Chuck53: I don't think you will have any problems setting zero. Most PLS systems have a zero input, and many encoders also have a zero output. If you haven't already, check out Electrocam (www.electrocam.com). Very versatile...
  11. Paulcet

    High-Res. Ink jet printers

    YZRacer: I have worked with Marsh Unicorn printers for a similar application, though I don't think they did bar-coding, and found them to be pretty tough, as long as you are careful to line up the printer with the product being printed. (Crashes are not allowed!) Their LCP series might do it...
  12. Paulcet

    Adjusting air cylinder cushions.

    It's been a long time for me, too, but I'll try to help. An air cushion is really a small piston attached to the top and bottom of the larger main piston. The smaller one fits into a cylinder at the each end of the the main cylinder. When this small piston enters the cylinder at the end, it...
  13. Paulcet

    4-20mA sensor measured at two locations

    Maddog, I think I see your point of having redundancy: If one power supply fails, the system will continue. (No problems here because of your diodes.) If one recorder/controler fails, the system will continue. However, consider what happens if one of your resistors opens or shorts. Both...
  14. Paulcet

    M10x1.5 thread tapping

    8.5mm is the suggested drill size. Is the screw 60 degree thread?

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