Posts made by YYCSparks

@Nightowl thank you for the reply.

What I want todo is basically set a macro that will take the bit over to the tool length probe location and measure the tool length and set the offset so that Z0 is the top of the spoilboard.
Currently when I probe using the tool length probe it sets an offset between the current Z and the probed.
I am not sure how or where to tell it how far the probe switch is from the top of the spoilboard and I think that’s my issue.
The job setup and stock settings are fine.

@Nightowl thanks for the reply.

I am using a Duet3 Mini+ with version 3.4.5 in SBC mode.

When I run job with the RepRap post in Fusion 360 jobs work okay but I am trying to understand what is happening in Carbide Create 6.52 that is causing the cuts into the material.

So here’s a question maybe somebody’s already done this. I have a tool length switch or probe setup on my waste board.
Right now I use an aluminum touch block to touch off the material and then send the job.
Could I and what might the macro look like if instead I setup my job with Z 0 being the spoilboard and instead of using the aluminum probe the machine just goes over to the switch checks the tool length and sets the Z height.
I am sure it’s possible just just not so sure how to set that up in firmware.

Hey Guys,

I have a questions about Carbide Create and I can figure it out.
I have a file that has 4 tool paths in it but uses the same bit. I load the file and edit it to remove the M0 at the start and then run the file.
When it moves from one tool path to another it lifts the bit clear of the material but then puts it back down and moves to the next tool through the material and I just cant figure out why.
I am using the GRBL post processor but have tried Marlin as well with the same result.

GCode File:
Bottle Opener Test GRBL (1) copy.gc

Video of what happened:
link text

@baird1fa said in help with z touch off macro:

G38.2

Do you mind sharing what your final config or setup for this was?

@jay_s_uk thank you. Sorry given the title was using Lightburn over USB I thought maybe you had a way to make that happen. Doing it all offline or not live in the software is okay but there are tools in the live software that would be handy for sure.

@markz its alive, Thank you for your help and advice.

https://youtube.com/shorts/x23cIedPRH4?feature=share

Jesse

@OwenD thanks man. Appreciate the help.
Apparently it was user error. I was messing around with building a tool probe and it was set wrong causing the Z axis to see the probe as tripped and wouldn’t home.

@OwenD okay thank you I will remove that.

However if I put this into the console nothing happens with the Z axis:

G1 H1 Z{move.axes[2].max*2} F900

It should shouldnt it?

So I have a strange problem where my X and Y axis will home just fine and my Z will move and I can probe and everything but when I try to home it using the Home Z button it does not move at all.

Any help on what I did wrong as I am sure its pretty easy fix and just something I overlooked.

Here is my Config:

; Configuration file for Duet 3 Mini 5+ (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Thu Mar 24 2022 08:01:33 GMT-0600 (Mountain Daylight Time)


; General preferences
M453                                            ; Set CNC Mode
M550 P"MPCNC01"                                 ; set printer name
G90                                             ; send absolute coordinates...
G21												; Set units to mm
;M83											; ...but relative extruder moves

; Network
;M552 S1                                        ; enable network
M586 P0 S1                                      ; enable HTTP
M586 P1 S0                                      ; disable FTP
M586 P2 S1                                      ; enable Telnet

; Configure Drives
;M669 K0                                        ; explicitly set Cartesian kinematics, even if I should not need to
M569 P0.0 S1                                    ; physical drive 0.0 goes forwards
M569 P0.1 S0                                    ; physical drive 0.1 goes forwards
M569 P0.2 S1                                    ; physical drive 0.2 goes forwards
M569 P0.3 S0                                    ; physical drive 0.3 goes forwards
M569 P0.4 S0                                    ; physical drive 0.4 goes forwards

; Drive Mapping
M584 X0.0:0.1 Y0.2:0.3 Z0.4                     ; set drive mapping, dual X axis and dual Y axis with single Z

; Configure Axis
M92 X100.00 Y100.00 Z400.00				        ; set steps per mm
M350 X16 Y16 Z16 I1                             ; configure microstepping with interpolation
M566 X600.00 Y600.00 Z100.00				    ; set maximum instantaneous speed changes (mm/min)
M203 X4000.00 Y24000.00 Z600.00 					; set maximum speeds (mm/min)
M201 X300.00 Y300.00 Z100.00					; set accelerations (mm/s^2)
M906 X1100 Y1100 Z900 I70						; set motor currents (mA) and motor idle factor in per cent
M84 S600                                        ; Set idle timeout

; Configure Axis Limits
M208 X0 Y0 Z0 S1								; set axis minima
M208 X630 Y502 Z77 S0							; set axis maxima

; Configure Endstops
M574 X1 S1 P"io5.in+io6.in"						; X axis configure switch-type (e.g. microswitch) endstop for low end on via pin io5.in and io6.in
M574 Y1 S1 P"io3.in+io4.in"						; Y axis configure switch-type (e.g. microswitch) endstop for low end on via pin io3.in and io4.in
M574 Z2 S1 P"io2.in"							; Z axis configure switch-type (e.g. microswitch) endstop for high end on  via pin io2.in

; Configure Z-Probe
;M558 K1 P8 C"!io1.in" H5 F100 T3000 			; XYZ Workpeice probe connected to io1 input
;M558 K0 P5 C"!io1.in" H5 F200 T6000			; set Z probe type to switch and the dive height + speeds
;M558 K1 P5 C"io0.in" H5 F500 T3000 
;G31 Z0											; set Z probe trigger value, offset and trigger height
M558 K0 P8 C"!io1.in" H5 F100 T3000 			; XYZ Workpeice probe (bitzero) connected to io1.in input
M558 K1 P8 C"!io0.in" H5 F500 T3000 			; TOOL Z probe (bitsetter)  connected to io5 input
G31 Z0 											; Set Z probe trigger height

; BitSetter Location Variables
; Used in the BitSetter Macro
global BtStrXLoc = -1							; X location where the BitSetter button is
global BtStrYLoc = -377							; Y location where the BitSetter button is
global BtStrZTrig = -113						; Z height where spindle with no tool loaded triggers the BitSetter

; Configure CNC Outputs
; Extras
M950 P1 C"out1" 								;set e1heat as a GPIO output pin for LED Lights
M950 P2 C"out2"									;set e0heat as a GPIO output pin for Laser

; Tools
; Spindle
M950 R0 C"out5" L0:30000						; Create spindle index 0, on pin out6 and Supports range 0-24000 RPM
M563 P0 R0 S"spindle1"                     		; define tool 0 with spindle1 
G10 P0 X0 Y0 Z0                        			; set tool 0 axis offsets
;Laser
;M950 R1 C"out6" L0"24000						; Create laser index 1, with PWM pin on out3 and Supports range 0-24000 RPM
;M563 P1 R1 S"laser1"							; Define tool 1 with laser1
;G10 P1 X0 Y0 Z0									; Set tool 1 axis offsets
;M452 C"out6" R255 F200 ; Enable Laser mode, on out6, with max intensity being 255, and a PWM frequency of 100

T0												; select tool 0

; Other Settings
;M575 P1 S1 B57600                              ; Enable PanelDUE
G54                                             ; Select Workspace Coordinate 1
;M564 S1 H1 									; Disable jog commands when not homed
M564 S0 H0                                		; Allow movement without homing (without axis maxima)
M911 S21.0 R23 P"G91 G1 Z3 F1000" 				; Configure power loss resume
M501											; Load Stored Parameters 

; Configure Heaters
M140 H-1										; Disable heated bed
M308 S2 Y"drivers" A"DRIVERS"              		; configure sensor 2 as temperature warning and overheat flags on the TMC2660 on Duet
M308 S3 Y"mcu-temp" A"MCU"                      ; configure sensor 3 as thermistor on pin e1temp for left stepper

Here is my HomeAll: Z Does not work but the other axis work fine

; homeall.g
; called to home all axes

G91 ; relative positioning
G21 ; Set units to mm
G1 H1 Z100 F900 ; move quickly to Z axis endstop and stop there (first pass)
G1 H1 X{-move.axes[0].max*2} F2400 ; move quickly to X axis endstops and stop there (first pass)
G1 H1 Y{-move.axes[1].max*2} F2400 ; move quickly to Y axis endstops and stop there (first pass)
G92 X{move.axes[0].min} Y{move.axes[1].min} Z{move.axes[2].max} ; Set Home Position
G1 X5 Y5 Z-5 F2400 ; go back a few mm
G1 H1 X{-move.axes[0].max*2} F300 ; move slowly to X axis endstops once more (second pass)
G1 H1 Y{-move.axes[1].max*2} F300 ; move slowly to Y axis endstops once more (second pass)
G1 H1 Z{move.axes[2].max*2} F300 ; move slowly to Z axis endstop once more (second pass)
G92 X{move.axes[0].min} Y{move.axes[1].min} Z{move.axes[2].max} ; Set Home Position
G90 ; absolute positioning

HomeZ Does not work:

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.10 on Thu Mar 24 2022 08:01:33 GMT-0600 (Mountain Daylight Time)

G91 ; relative positioning
G21 ; Set units to mm
G1 H1 Z{move.axes[2].max*2} F900 ; move quickly to Z axis endstop and stop there (first pass)
G92 Z{move.axes[2].max} ; Set Home Position
G1 Z-5 F2400 ; go back a few mm
G1 H1 Z{move.axes[2].max*2} F300 ; move slowly to Z axis endstop once more (second pass)
G92 Z{move.axes[2].max} ; Set Home Position
G90 ; absolute positioning

@jay_s_uk could you describe your workflow for laser engraving with Duet and Lightburn? I am still working on getting my laser setup and working and would like a coles notes version of what getting a job setup and zeroed looks like.

@droftarts so is there anyway to use Lightburn live with the Duet or would it be Generate Gcode upload then burn.
I am thinking about things like framing or setting focus are easier with the software live from what I have seen.

@o_lampe thank you for the suggestion but how does InkScape help with Gcode generation for the Duet.

Hey guys,

So with the help of some of the great people on the forum I was able to get my Duet 3 and Diode laser connected and able to switch between CNC mode and Laser mode.
I found a video on how to setup Fusion360 for cutting with the laser so I will try that out.
But I mostly would like to use the laser todo engraving and detail work on CNC projects.
I have used LaserGRBL before and found it okay but can Fusion360 be used for this function?
Can LaserGRBL be used offline? I couldn’t t find a away to use it offline and or connect to Duet.
Should I just buy LightBurn? And if so what does the work flow look like?

Thank you.

@markz that's funny my setup is an MPCNC as well and I have used it for CNC work and thought I had a reasonable handle on things but getting this laser going had me stumped for sure so thank you very much for the help.

So I hadn't really thought if using the laser for cutting I was looking at it more for engraving and I didnt even really think about the fact I could use Fusion360 to create the GCode for that, while it can cut and I can see that, can it engrave? I have not found any examples of using it for that work.

Okay so I have a Macro setup now as I am using Extruder 0 to send 12volts to the laser and then the out 6 pin to control the laser so I have a Macro like this:
Laser On:

;Turn On Laser and set Laser Mode
M291 P"Turning on the laser standby, make sure you have saftey glasses." R"Warning" S3    	; screen message
M42 P2 S1
M452 C"out6" R255 F200 ; Enable Laser mode, on out6, with max intensity being 255, and a PWM frequency of 200

Laser Off

;Turn Off Laser and set CNC Mode
M291 P"Turning off the laser standby, and going back to CNC mode." R"Warning" S3    	; screen message
M42 P2 S0
M453

Thank you both @markz and @dc42 for you help and advise.
After checking the VFD ports looks to do what I want it to for the PWM control so I followed the Guide that Mark posted about setting up a laser.

I moved the spindle SSR control to out5 and setup this in my config:

M452 C"out6" R255 F200

In the guide it lists the Frequency at 200, is there a way to tell what this is on the laser?

I think I am pretty close so I apricate the help.
Also it looks like CNC and laser modes are two seperate things, if so what or how would you setup the machine swap back and forth?

@markz sorry, silly question but where do you switch the Tool in use?

As well I would really rather not fry my laser or board so if this is my laser and the cable I have in the image below.
Then I need to connect the Red and Black to a 12volt power source as I am using a 24volt supply so I will need a buck converter to bring that down to 12volt correct.
Then the yellow PWM wire to the v_outlc2+ pin?

@markz Yes you are right I need a 12 volt not a 5 volt so I will more forward with your recommendation.

Thank you for your time and advice.

@markz thank you for the information.

Given that I am just using out6 to turn the CNC on and off with no PWM control would it be better to move the Spindle to another pin and then use this for the laser:

@markz config.g

Current Config file