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flexbex
flexbex

07 Feb 2025 15:56

Coordinate system and touch off was created by flexbex

Coordinate system and touch off

Category: General LinuxCNC Questions

Hi a beginner question. So I setup my cnc and I want to do a first test run. I use freecad as CAD and CAM programm. In freecad I set my origin on one of the upper corners. Then I create the toolpath. But I get exceeding limit error in linuxcnc. My machine limits are x-10 to 2000, y-10 to 1000 and z0 to -150. So my procedure is I move the tip of the endmill to the corner of the workpiece. Which is lets say in machine coordinates at x100 y100 and z-20. Then I send g10 l2 p1 x0 y0 z0. My understanding was that this sets the coordinate system 1 to zero. Then I start my program which begins with

(Exported by FreeCAD)
(Post Processor: script_module)
(Output Time:2025-02-07 23:16:55.212221)
(begin preamble)
G17 G54 G40 G49 G80 G90
G21
(begin operation: Fixture)
(machine units: mm/min)
G54
(finish operation: Fixture)
(begin operation: 6mm_Endmill001)
(machine units: mm/min)
(6mm_Endmill001)
M5
M6 T2
G43 H2
M3 S2000
(finish operation: 6mm_Endmill001)
(begin operation: Profile)
(machine units: mm/min)
(Profile)
(Compensated Tool Path. Diameter: 6.0)
G0 Z6.000
G0 X56.121 Y56.121
G0 Z4.000
G1 X56.121 Y56.121 Z-5.000 F120.000
G2 X57.000 Y54.000 Z-5.000 I-2.121 J-2.121 F120.000
G1 X57.000 Y4.000 Z-5.000 F120.000

But I get an error at G0 Z6.000 already. So what am I missing here? In machine coordinates I would still have the space to move 6mm up.

notJamesLee
notJamesLee

07 Feb 2025 15:48

Replied by notJamesLee on topic Z Homing

Z Homing

Category: Basic Configuration

Thank you.

It all does happen fast, you'll see i had to move X (joint 0) way out so I could observe Z (joint 3) which errors out at 0.114

I swore i tried inverting that sign because i had the same idea. However, it didn't change the z motor going in the wrong direction after. I will try again here in an hour or so and update.

Also reading 6.3 here (linuxcnc.org/docs/2.7/html/config/ini-homing.html) that value must be positive. Even though it didn't throw an error when i tried. I imagine it just take the absolute value of that number? It seems like i have to invert almost everything.

hellvetica
hellvetica

07 Feb 2025 15:44

Replied by hellvetica on topic EtherCAT + lcec + cia402 + PID on A6-1000EC in velocity control mode

EtherCAT + lcec + cia402 + PID on A6-1000EC in velocity control mode

Category: EtherCAT

Thank you @onceloved !
It turned out to be a wiring issue

PCW

07 Feb 2025 15:31

Replied by PCW on topic 7i96s Replacement Needed

7i96s Replacement Needed

Category: General LinuxCNC Questions

Also, if you are not using the analog output, a 7I96 will replace a 7I96S

tommy
tommy

07 Feb 2025 15:15

Replied by tommy on topic 7i95T + 7i78 spindle configuration

7i95T + 7i78 spindle configuration

Category: Basic Configuration

I came this far, but getting no readings on 7i78 SPINDLE OUT terminal (SPINDLE- is GND and SPINDLE+ is +10V, both from VFD)

setp hm2_7i95.0.pwmgen.00.output-type 1
setp hm2_7i95.0.pwmgen.pwm_frequency 15000
setp hm2_7i95.0.pwmgen.00.scale 16000
net spindle-on <= spindle.0.on
net spindle-on => hm2_7i95.0.pwmgen.00.enable
net spindle-ramped => hm2_7i95.0.pwmgen.00.value

Sandro
Sandro

07 Feb 2025 15:02 - 07 Feb 2025 15:08

QtPlasmaC Error: "E word with no G70,G76,M66,M67 or M68 to use it" was created by Sandro

QtPlasmaC Error: "E word with no G70,G76,M66,M67 or M68 to use it"

Category: Plasmac

Hello everyone

I recently installed a laser on my plasma cutter to mark the origin. When I try to mark the origin of a part, I am getting the error message "E word with no G70,G76,M66,M67 or M68 to use it". Failure happens during this procedure:

1) Press "Laser" button in the DRO window
2) Move to position
3) Press "Mark Edge" button
4) Make a second move to desired origin (so it considers rotation)
5) Press "Mark Origin" button
6) --> Error: "E word with no G70,G76,M66,M67 or M68 to use it"

It happens like 50% of the time doing this procedure. I am using QtPlasmaC with LCNC 2.9.3.
Anybody experiencing the same or having a hint as to why this occurs?

Thank you!

Prefs-File

Warning: Spoiler!

[PLASMA_PARAMETERS]
Arc Voltage Offset = 781.25
Arc Voltage Scale = 0.049482
Setup Feed Rate = 1200.0
Arc Fail Timeout = 3.0
Arc OK High = 250.0
Arc OK Low = 60.0
Arc Maximum Starts = 1
Velocity Anti Dive Threshold = 90.0
Float Switch Travel = 1.5
Height Per Volt = 0.1
Void Sense Slope = 500
Ohmic Maximum Attempts = 0
Ohmic Probe Offset = 0.0
Pid P Gain = 10.0
Pid D Gain = 0.0
Pid I Gain = 0.0
Probe Feed Rate = 300.0
Probe Start Height = 25.0
Arc Restart Delay = 1.0
Safe Height = 25.0
Scribe Arming Delay = 0.0
Scribe On Delay = 0.0
Skip IHS Distance = 0.0
Spotting Threshold = 1.0
Spotting Time = 200.0
THC Delay = 0.5
THC Sample Counts = 50
THC Sample Threshold = 1.0
THC Threshold = 1.0

[GUI_OPTIONS]
Mode = 1
Estop type = 0
DRO position = bottom
Flash error = 0
Hide run = 0
Hide pause = 0
Hide abort = 0
Autorepeat all = False
Use keyboard shortcuts = False
Use soft keyboard = False
Show materials = True
Run from line = True
Tool tips = True
Exit warning = True
Exit warning text =
Preview cone size = 0.5
Preview grid size = 0.0
T view zoom scale = 1.0
Override jog inhibit via Z+ = False
Default material = 0
Custom style = None

[BUTTONS]
1 Name = OHMIC\TEST
1 Code = ohmic-test
2 Name = PROBE\TEST
2 Code = probe-test 10
3 Name = SINGLE\CUT
3 Code = single-cut
4 Name = NORMAL\CUT
4 Code = cut-type
5 Name = TORCH\PULSE
5 Code = torch-pulse 0.5
6 Name = FRAMING
6 Code = framing
7 Name = USER\MANUAL
7 Code = user-manual
8 Name = LASER\TOGGLE
8 Code = toggle-laser
9 Name = LASER\OFFSET
9 Code = G0 X{LASER_OFFSET X axis} Y{LASER_OFFSET Y axis} \ toggle-laser
10 Name =
10 Code =
11 Name =
11 Code =
12 Name =
12 Code =
13 Name =
13 Code =
14 Name =
14 Code =
15 Name =
15 Code =
16 Name =
16 Code =
17 Name =
17 Code =
18 Name =
18 Code =
19 Name =
19 Code =
20 Name =
20 Code =

[POWERMAX]
Port =

[COLOR_OPTIONS]
Foreground = #ffee06
Highlight = #ffee06
LED = #ffee06
Background = #16160e
Background Alt = #36362e
Frames = #ffee06
Estop = #ff0000
Disabled = #b0b0b0
Preview = #000000

[ENABLE_OPTIONS]
THC enable = True
Corner lock enable = True
Void lock enable = True
Use auto volts = True
Ohmic probe enable = True
THC auto = False

[CAMERA_OFFSET]
Camera port = 0
X axis = 0.0
Y axis = 0.0

[STATISTICS]
Cut time = 90.93
Paused time = 114.58
Probe time = 266.5
Program run time = 708.21
Torch on time = 125.73
Rapid time = 138.67
Cut length = 1902.87
Pierce count = 55

[LASER_OFFSET]
X axis = -17.0
Y axis = -151.84

[OFFSET_PROBING]
X axis = 0.0
Y axis = 0.0
Delay = 0.0

[SINGLE CUT]
X length = 0.0
Y length = 0.0

[CONVERSATIONAL]
Preamble = G21 G64P0.25 G40 G49 G80 G90 G92.1 G94 G97
Postamble = G21 G64P0.25 G40 G49 G80 G90 G92.1 G94 G97
Origin = 0
Leadin = 0
Leadout = 0
Hole diameter = 32
Hole speed = 60
Grid Size = 0

slowpoke
slowpoke

07 Feb 2025 14:31

Replied by slowpoke on topic Indivudual home buttons - EMC2-Axis

Indivudual home buttons - EMC2-Axis

Category: General LinuxCNC Questions

cakeslob wrote:
I think in axis, I think it has to do with the ini entry HOME_SEQUENCE. I think if you remove that entry, it will remove home all button

You are correct, that works.

Thank you!

cakeslob
cakeslob

07 Feb 2025 14:21

Replied by cakeslob on topic Indivudual home buttons - EMC2-Axis

Indivudual home buttons - EMC2-Axis

Category: General LinuxCNC Questions

I think in axis, I think it has to do with the ini entry HOME_SEQUENCE. I think if you remove that entry, it will remove home all button

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