CNC Change tool

Guthrie · April 2019

Hi

I have been trying to turn my printer into a cnc machine I have purchased Estlcam and am using G codes generated by it in Reperier Host.

My problem is at change tool Estlcam uses G codes that repetier does not recognise.

I want to load the code into the printer sd card.

At change tool I want the 1 printer lift z go to home 2 have the lcd report change tool continue when ready.

3 When I press continue the print starts where it left off.

I am using Repetier Firmware

Can you wright the code for me or help I am using the sainsmart lcd.

Repetier · April 2019

You can e.g. add a M6 command in commands.cpp. Unfortunately my time frame does not allow me writing such special solutions. LCD output is a bit difficult to integrate and will take most of the time, except if you only change the status line. So I would suggest to do just that. Memory position, move send status message and wait for a button to be pressed. With sole sd card solution that should be no problem with timeout of host software. Otherwise you would need a more complicated solution.

RAyWB · April 2019

Can you post a gcode section to see what Estlcam generates for tool change?

Guthrie · April 2019

RAyWB said:

Can you post a gcode section to see what Estlcam generates for tool change?

Repetier said:

You can e.g. add a M6 command in commands.cpp. Unfortunately my time frame does not allow me writing such special solutions. LCD output is a bit difficult to integrate and will take most of the time, except if you only change the status line. So I would suggest to do just that. Memory position, move send status message and wait for a button to be pressed. With sole sd card solution that should be no problem with timeout of host software. Otherwise you would need a more complicated solution.

Guthrie · April 2019

Hi RAyWB

The code in Estlcam is

; No.2: Drill 2

MO5

; Change Tool 5MM

MO3

Guthrie · April 2019

Guthrie said:

Hi RAyWB
The code in Estlcam is
; No.2: Drill 2
MO5
MOO
; Change Tool 5MM
MO3
Sorry about that
Gb

RAyWB · April 2019

ok, so M05 is spindle stop,

M00 is machine stop

and M03 is spindle start.

as far as i know that´s just something like a workaround for a real m6...

the minor problem is that repetier does not understand the m00.

what about z-correction for different tool lengths ?

ist there something estlcam does or do you have to probe?

next problem is that you have to lift z-axis to change the tool ...

where is your probe? mobile or fix in table?

the usual way would be to start with a tool, probe to workpiece to get a Z-value

for tool change you have to memory position , lift z ,stop spindle , goto probe ,measure tool length , lift z again , change tool, acknowledge tool change(button), measure new length, correct offset and go back to memorized position.

that´s what a standard toolchange procedure should do.

i wrote something like that 2 years ago , but special for my machine may be i can hook it up again

and make a short video how it works.

are you located in germany?

Guthrie · April 2019

RAyWB said:

ok, so M05 is spindle stop,
M00 is machine stop
and M03 is spindle start.

as far as i know that´s just something like a workaround for a real m6...

the minor problem is that repetier does not understand the m00.

what about z-correction for different tool lengths ?
ist there something estlcam does or do you have to probe?

next problem is that you have to lift z-axis to change the tool ...

where is your probe? mobile or fix in table?

the usual way would be to start with a tool, probe to workpiece to get a Z-value

for tool change you have to memory position , lift z ,stop spindle , goto probe ,measure tool length , lift z again , change tool, acknowledge tool change(button), measure new length, correct offset and go back to memorized position.

that´s what a standard toolchange procedure should do.

i wrote something like that 2 years ago , but special for my machine may be i can hook it up again
and make a short video how it works.
are you located in germany?

RAyWB said:

ok, so M05 is spindle stop,
M00 is machine stop
and M03 is spindle start.

as far as i know that´s just something like a workaround for a real m6...

the minor problem is that repetier does not understand the m00.

what about z-correction for different tool lengths ?
ist there something estlcam does or do you have to probe?

next problem is that you have to lift z-axis to change the tool ...

where is your probe? mobile or fix in table?

the usual way would be to start with a tool, probe to workpiece to get a Z-value

for tool change you have to memory position , lift z ,stop spindle , goto probe ,measure tool length , lift z again , change tool, acknowledge tool change(button), measure new length, correct offset and go back to memorized position.

that´s what a standard toolchange procedure should do.

i wrote something like that 2 years ago , but special for my machine may be i can hook it up again
and make a short video how it works.
are you located in germany?

Guthrie · April 2019

RAyWB said:

ok, so M05 is spindle stop,
M00 is machine stop
and M03 is spindle start.

as far as i know that´s just something like a workaround for a real m6...

the minor problem is that repetier does not understand the m00.

what about z-correction for different tool lengths ?
ist there something estlcam does or do you have to probe?

next problem is that you have to lift z-axis to change the tool ...

where is your probe? mobile or fix in table?

the usual way would be to start with a tool, probe to workpiece to get a Z-value

for tool change you have to memory position , lift z ,stop spindle , goto probe ,measure tool length , lift z again , change tool, acknowledge tool change(button), measure new length, correct offset and go back to memorized position.

that´s what a standard toolchange procedure should do.

i wrote something like that 2 years ago , but special for my machine may be i can hook it up again
and make a short video how it works.
are you located in germany?

CNC Change tool

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