Hello Guest it is March 28, 2024, 09:46:09 PM

Author Topic: Frequency out  (Read 5494 times)

0 Members and 1 Guest are viewing this topic.

Frequency out
« on: June 05, 2010, 11:22:44 AM »
Hi,
Does somebody knows a way to send out a frecuency to an output?
I am trying to control an old Nd.Yag laser, and it has a device named Q-Switch. It needs to receive a variable frecuency from 500 to 20000 Hz. I tried to hook it to an axis, but the frequency must remain working to a presseted value all the time.
Thanks
Re: Frequency out
« Reply #1 on: June 05, 2010, 09:33:32 PM »
I don't know if this will help as I've never run a laser.
There is an option in config/general config called "Set charge pump to 5KHz - laser standby".
Look in the Install & Config manual for a description of the config options.

I suspect this sets the frequency of the charge pump output to 5KHz, - you could then run that line to you laser...?

Dave

Author of the MachStdMill Extensions for Mach3
www.CalypsoVentures.com
Re: Frequency out
« Reply #2 on: June 07, 2010, 09:58:52 AM »
Thanks Dave, I have tried the chargepump, but only is able to send 5Khz. or 12Khz.
I would like to be able to change it from 500Hz to 20Khz. depending on the material to be marked.
Any other idea?
Mach3 is the most easy to use and powerfull software I have tried. And maybe some new ideas will help.
Thanks
Manuel S

Offline BR549

*
  •  6,965 6,965
    • View Profile
Re: Frequency out
« Reply #3 on: June 07, 2010, 07:05:11 PM »
Have you l;ooked at the spindle PWM output??
Re: Frequency out
« Reply #4 on: June 07, 2010, 07:19:35 PM »
Yes, but I am using it as power control for the lamp.

Offline BR549

*
  •  6,965 6,965
    • View Profile
Re: Frequency out
« Reply #5 on: June 07, 2010, 09:06:26 PM »
OK, What is the Q-switch for???
Re: Frequency out
« Reply #6 on: June 08, 2010, 08:05:15 AM »
Q-switch is an opto-acoustic device to interrupt the laser at a given frecuency, this make the laser to emit or not light.
This feature gives the laser the possibility to mark or engrave diferent materials and gives you a way to modify the color and some aspects in the laser marking.

Thanks again
Re: Frequency out
« Reply #7 on: June 08, 2010, 08:52:59 AM »
Hi Manuel,

Do you still have a spare Analog ouput, If Yes you can buy a analog to frequency converter. I am currently using one on our Pulse Ferranti Laser. I can't remember the brand.  I will check it tomorrow.

cheers
renato

Offline poppabear

*
  • *
  •  2,235 2,235
  • Briceville, TN, USA
    • View Profile
Re: Frequency out
« Reply #8 on: June 29, 2010, 04:32:28 AM »
take a look at the PoKeys, it have several PWM output that exceed what you want in both directions........

scott
fun times