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  1. MarioMaster

    PWM Comms LASER Transmitter

    If you're trying to power a laser with a driver already built in, it may not work well with this circuit due to capacitance in the driver that will attempt to smooth out the signal you are trying to transmit. The best laser for use with this circuit is a pure diode laser, DPSS lasers are...
  2. MarioMaster

    how to control stepper motors in laser projector

    Stepper motor - Wikipedia, the free encyclopedia Check out the section on phase current waveforms :) GCode is a coordinate system used by CNC systems, you don't need to mess with that at all for what you're doing
  3. MarioMaster

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please The tubes for the 2213 are indeed larger if the product specifications are anything to go by, the longitudinal mode spacing is lower and in the relatively low gain 458nm flavor, they offer heads up to 25mW...
  4. MarioMaster

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Applied Materials 9100038P Argos Laser Uniphase Orbot WF730 2213 75SLRBF | eBay Meet the bigger brother of the JDSU 2214 series, the 2213 - I would have bought this already but it's a single line unit and I'm...
  5. MarioMaster

    Burning Mosfets, could use advice.

    You should check to make sure you don't have any strange grounding issues first, but other things to look out for is you might want to put a resistor inline with the mosfet gate along with say a 7.5v zener diode to prevent any voltage spikes from toasting the delicate oxide layer on the gate...
  6. MarioMaster

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Yes a spider box would work fine for running one of those. I run my ILT krypton at home that way.
  7. MarioMaster

    PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

    Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Doesn't get much cheaper than that, beware that psu is 208/240v only and you can't convert those (filament transformer only has taps for 208/240v)
  8. MarioMaster

    how to control stepper motors in laser projector

    Steppers themselves don't know what Gcode is, that's just how most CNC based stepper motor systems operate. Stepper motors themselves require turning on the coils in a specific order and correct polarity depending on what type of motors they are. You should probably look into getting some...
  9. MarioMaster

    Cheap, Portable Oscilloscope

    Most of these small cheap "mini scope" varities often lack a critical feature pretty much ANY oscilloscope should have, AC coupling. You can't read noise and ripple riding on a DC offset because scaling reduces noise to a few pixels or less
  10. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    Yeah you'll be fine with that, although I would've just gone down to the local hardware store and bought a replacement 15A plug for half the cost and lopped the 20A plug off the laser. PS: bloompyle is gonna be pissed that you won that ALC60X :crackup: hooked already are we?
  11. MarioMaster

    Are X-rays really this easy to make?

    Indeed, as long as you sign a virtual waiver saying I am not liable for any damage caused by high voltage or ionizing radiation then send me a PM if you're interested.
  12. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    The wiring harness from the sequencer includes the discharge on jumper, you still need to add another jumper to enable the knob on the power supply to be able to adjust the power output. It's best to keep the plug that comes with the sequencer since the plastic shell prevents wires from...
  13. MarioMaster

    Are X-rays really this easy to make?

    Unlikely, I think you need to get up to around 50KV before the electrons get accelerated enough to produce X-rays. If you really want X-rays you can have this for $35 :tinfoil:
  14. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    Correct, just make sure they save the cable that is shown attached to the power supply, this has the interlock jumper that tells the laser to turn on. There are no diffraction gratings anywhere in this unit from what I remember, just some lenses and mirrors. The ABI Prism 377 is the next...
  15. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    1 - This is the optical scanner assembly that moves back and forth to scan across the DNA sample, useful parts: encoded dc brushmotor, linear actuator, lots of heavy machined aluminum parts, photomultipler tube with built in power supply, stepper motors, color filters (usually ruined with dirt...
  16. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    Not much, they're pretty small. There's probably 75-100 of those worth in my collection :shhh:
  17. MarioMaster

    10 HeNe LOT

    How much did the brick for that set you back? I might end up making my own HeNe psu from scratch depending on your answer =P
  18. MarioMaster

    Coherent Laser Diode Bar 30W-40W 808nm

    Current limiting was provided by a large piece of copper plated steel pipe hanger strips to create a resistor that could handle 75A
  19. MarioMaster

    10 HeNe LOT

    No pictures? Harumph
  20. MarioMaster

    Multiline Argon laser cheap! Michican, USA

    If the jumper falls out during operation the laser will fall back to idle current, so no big deal. The other wires you need are the interlock connections, which are shorted in the original wiring harness. You can remove the rest of the wires (the ones that are not the interlock) if you only...


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