laser crosshair

Hi, my question is how to setup a laser crosshair in QtPlasmaC.

linuxcnc.org/docs/devel/html/plasma/qtpl...l#peripheral-offsets

linuxcnc.org/docs/devel/html/plasma/qtplasmac.html#qt_laser
 

What about the wiring of the laser crosshair? I have 5v laser cross model wiring it up is what I need.

I used a buck converter similar to below to convert from 24V:
core-electronics.com.au/dc-dc-adjustable...T3HavcIaAmiKEALw_wcB

phillc54 wrote:

I used a buck converter similar to below to convert from 24V:
core-electronics.com.au/dc-dc-adjustable...T3HavcIaAmiKEALw_wcB

x 2 - got mine off ebay.

  I already have a laser which is 5v what I need is setting up the hardware and software connection.

watch out with those little laser diodes l think the metal case is +5v, so if you put them in a metal holder which is at zero volts.... they are not long for this world being usable
put a bit of electrical tape around them before clamping them in a metal holder 

How did you setup your laser crosshair show us step by step.

Install laser parallel to the torch so moving the torch up and down does not affect the laser position.
place some material under the torch
touchoff x0 y0
jog torch to near pierce height
Pulse the torch
jog machine x,y until the crosshair is exactly over the divot
Record the x,y DRO readings. These are your  laser offsets
Update them in your ini file

I mounted my laser to the non-moving portion of the Z axis. No need to fuss with any kind of perpendicularity to the table.

Follow these directions for setting the offset, no need to edit the .ini file manually:

linuxcnc.org/docs/devel/html/plasma/qtpl...l#peripheral-offsets