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Modify Marlin 1.1.x for endless loop

Posted by nerginer

nerginer

Modify Marlin 1.1.x for endless loop
July 16, 2020 04:05AM

Registered: 13 years ago
Posts: 22

Hi,

I want to modify marlin 1.1.x firmware in order to make it run the gcode inside the sd card forever (until e-stop triggered)
Any ideas are welcome.

Regards,
Nuri

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Dust

Re: Modify Marlin 1.1.x for endless loop
July 16, 2020 08:55AM

Admin
Registered: 13 years ago
Posts: 7,000

I don't know if this works but try putting the following at the end of your gcode file

M400 ; make sure all moves have finished so nothing is queued
M23 filename.gco   ; same gcode file these lines are in.
M24

Edited 1 time(s). Last edit at 07/16/2020 08:56AM by Dust.

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nerginer

Re: Modify Marlin 1.1.x for endless loop
July 16, 2020 01:10PM

Registered: 13 years ago
Posts: 22

We are very close

M23 loads the file but M24 did not start it
In the LCD it requieres resume print.

How can we solve it. Firmware mod is also possible for me

Regards
Nuri

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Ohmarinus

Re: Modify Marlin 1.1.x for endless loop
July 16, 2020 06:13PM

Admin
Registered: 11 years ago
Posts: 3,096

Copy-pasting the GCODE into the file for about a thousand times isn't a solution I guess?

http://www.marinusdebeer.nl/

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nerginer

Re: Modify Marlin 1.1.x for endless loop
July 17, 2020 02:41AM

Registered: 13 years ago
Posts: 22

>Copy-pasting the GCODE into the file for about a thousand times isn't a solution I guess?
No smiling smiley

Can I add a M command that can rewind the program in the SD card and run it?

functions I may use

card.startFileprint();
card.openAndPrintFile(card.filename);

Any idea about how to implement this?

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Shank man

Re: Modify Marlin 1.1.x for endless loop
July 17, 2020 12:28PM

Registered: 9 years ago
Posts: 204

I know I'm off base by mentioning this but Teacup has a Canned Cycle built into it where G-code commands will be executed over and over until the reset button is pushed or the power is killed. It's used for exhibitions

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VDX

Re: Modify Marlin 1.1.x for endless loop
July 17, 2020 02:17PM

Admin
Registered: 16 years ago
Posts: 13,886

... I've modified Pronterface to check for an "automode" flag and, if found, restart the load+run session anew ... but this was for running from the PC, not the SD card ...

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

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nerginer

Re: Modify Marlin 1.1.x for endless loop
July 18, 2020 01:22AM

Registered: 13 years ago
Posts: 22

I have find the solution with @Dust's idea

First I upgraded my firmware to Marlin 1.1.9

I added at the end of my code file (filename.gco)

M32 filename.gco

Thank you everybody specially Dust

Regards
Nuri

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Ohmarinus

Re: Modify Marlin 1.1.x for endless loop
July 18, 2020 03:59AM

Admin
Registered: 11 years ago
Posts: 3,096

Quote
nerginer
I have find the solution with @Dust's idea

First I upgraded my firmware to Marlin 1.1.9

I added at the end of my code file (filename.gco)

M32 filename.gco

Thank you everybody specially Dust

Regards
Nuri

Ah! M32..

[marlinfw.org]

Easy to find indeed.

"The M32 command exists to allow G-code to load other G-code files and run them as sub-programs. This can be useful to change the start / end gcode for a batch of files without having to edit them all."

And very useful in certain situations... Hmmm. Never knew this. It might come in handy with the pen plotter I'm building.

Edited 1 time(s). Last edit at 07/18/2020 04:00AM by Ohmarinus.