PlasmaC Fiber laser 1Kw head height control + auto focuas

i dont think its good idea,,,
it relies on factors
1, distance between head and work-peace (piercing and cutting have different focuas
2 material thickness
3 speed of cut ( fine tuning)
its better to be configured same as material,, in plasmac

PlasmaC use external offsets to control Z motion.

linuxcnc.org/docs/devel/html/motion/external-offsets.html

Perhaps the focus motor is an axis that is controlled by a hal component which in turn applies an external offset to that axis so no gcode is required. So again similar to Plasmac.

rodw wrote: Perhaps the focus motor is an axis that is controlled by a hal component which in turn applies an external offset to that axis so no gcode is required. So again similar to Plasmac.

yes and i want to link it to plasmac material control

phillc54 wrote: PlasmaC use external offsets to control Z motion.

linuxcnc.org/docs/devel/html/motion/external-offsets.html

i want to use plasmac material control to adjust the height of head, focas. and piering highet so operator can choose the material and all setting adjusted based on that,, also gas pressure

also whats the best way to change the rs485 protocol to use same as laser source and i have the protocol for this from laser manufacturer

taloot wrote: also whats the best way to change the rs485 protocol to use same as laser source and i have the protocol for this from laser manufacturer

all the Plasmac RS485 stuff is in here, it is Modbus ASCII @ 19200

github.com/LinuxCNC/linuxcnc/blob/master...ne/plasmac/pmx485.py

okey i have some updates,

i used the capacitance to 0-10 converter. and its connected to THCAD10 and from THCad ---->7i96
probe is fixed


i configure the focus as an axis, and i will control it with external offset for piercing i have specific focus value and another one for focus
also i have the protocol for the laser on RS232,,, i can choose the frequency and the power of the laser ( change them according to my need) cut or engrave

1.i want to link the rs232 to control the laser power.. what hal pin represent this in plasmac and how can i do it to control the power
2.i want to make vitrual insturment dashboard for the laser source,, whats the best method to do this ( i m using buster debian )

PlasmaC doesn't use anything like that, the torch is either on or off.

If you want to set the power from gcode, you may be able to use one of the spindle speed pins from motion or if you need to set the laser power according to velocity you could run the X and Y joint velocities into a hypot component.

linuxcnc.org/docs/2.8/html/man/man9/motion.9.html

linuxcnc.org/docs/2.8/html/man/man9/hypot.9.html

phillc54 wrote: PlasmaC doesn't use anything like that, the torch is either on or off.

If you want to set the power from gcode, you may be able to use one of the spindle speed pins from motion or if you need to set the laser power according to velocity you could run the X and Y joint velocities into a hypot component.

linuxcnc.org/docs/2.8/html/man/man9/motion.9.html

linuxcnc.org/docs/2.8/html/man/man9/hypot.9.html

Communications can be established with a Hypertherm Powermax plasma cutter that has a RS485 port. This then enables the setting of Cut Mode, Cutting Amperage and Gas Pressure automatically from the Cut Parameters of the material file.
on plasmac rs485 can set the amp right?