PlasmaC Fiber laser 1Kw head height control + auto focuas

thefabricator03 wrote:

Taloot, Do you have a way I can get in contact with you. I would like to find out more information about your lasers.

my s k y p e
taloot abdullah

i have problem ,, the signal come from THCAD... isnt stable,, its changing with in limit fluctuation ... do i have to use lowpass filter?

The THCAD output should be about 10 bit resolution if read every 1 ms servo thread period
you can improve the resolution (at the expense of bandwidth) by low pass filtering

You can verify noise level by using a 9V battery

If you dont need HV protection and high isolation, a 7I87 is probably a better choice
as you can get 12 bit resolution independent of servo thread rate

PCW wrote:

The THCAD output should be about 10 bit resolution if read every 1 ms servo thread period
you can improve the resolution (at the expense of bandwidth) by low pass filtering

You can verify noise level by using a 9V battery

If you dont need HV protection and high isolation, a 7I87 is probably a better choice
as you can get 12 bit resolution independent of servo thread rate

how can i stabilize the reading from thcad
i have no luck to link the lowpass filter as most examples in the forum is, for spindle

phillc54 wrote:

If you are using the PlasmaC component it has a built in low pass.

github.com/LinuxCNC/linuxcnc/blob/master...smac_connections.hal

im experimenting outside plasmac.
i have about 1% fluctuation... is that normal?

i have 0-10v signal generator
same as this.,
www.google.com/search?q=0-10v+generator&...imgrc=AkuSyKsLNCEOqM

after applying lowpass filter is 0.01% fluctuation

PCW wrote:

The THCAD output should be about 10 bit resolution if read every 1 ms servo thread period
you can improve the resolution (at the expense of bandwidth) by low pass filtering

You can verify noise level by using a 9V battery

If you dont need HV protection and high isolation, a 7I87 is probably a better choice
as you can get 12 bit resolution independent of servo thread rate

there is no much noise from the system,, 10 bit is good for me
but how can the low pass filtering effect the resolution

store.mesanet.com/index.php?route=produc...oduct&product_id=126
this one?