Can I store and read values from card

core3d.tech

I would like to be able to store and read custom parameters from disc and use them in macros. Any way to do this?

Stephen6309

@core3d-tech I use a couple of macros to change the z offset between PLA and PETG. If I need to change the offset, I only need to edit the macro.

core3d.tech

@stephen6309 I need to store information on state of the printer when it turns/off on. Something similar to XYZ location in case of power outage.

deckingman

@core3d-tech said in Can I store and read values from card:

@stephen6309 I need to store information on state of the printer when it turns/off on. Something similar to XYZ location in case of power outage.

Have you seen this ?
https://duet3d.dozuki.com/Wiki/Setting_up_to_resume_a_print_after_a_power_failure

core3d.tech

@deckingman Clearly that procedure stores a bunch of information, but I don't see what information it chooses to store and I want to store something completely unrelated. I have a feeling all that is coded under the M911 code in the firmware itself.

I'll give a completely non-related example to illustrate (not what I'll be using it for); Lets say I want to store the latest RGB (LEDs) values so next time I start up my Printer it resumes at those RGB values.

So I would need something that says M???? "RGB:...,...,...."

At a later stage I want this information back and use it (as I'm typing this I get the feeling this is way beyond G-code/MAcro. sigh, still any suggestions...

dc42

It's possible in a macro file to create and write data to a different macro file using the M559 command. Then you could execute the file from config.g. So you could use this method if you used only a few different settings of the RGB LEDs. When conditional GCode, variables and the object model are implemented, you will be able to do a lot more.

timcurtis67

@dc42 said in Can I store and read values from card:

It's possible in a macro file to create and write data to a different macro file using the M559 command. Then you could execute the file from config.g. So you could use this method if you used only a few different settings of the RGB LEDs. When conditional GCode, variables and the object model are implemented, you will be able to do a lot more.

Can't wait for this option.

core3d.tech

@dc42 that latter sounds awesome. Any chance that's in place prior to MRRF2019?

dc42

@core3d-tech said in Can I store and read values from card:

@dc42 that latter sounds awesome. Any chance that's in place prior to MRRF2019?

When is that?

core3d.tech

@dc42 March 29th 2019 (Goshen Indiana) https://www.eventbrite.com/e/2019-midwest-reprap-festival-mrrf2019-tickets-51075814135

dc42

@core3d-tech said in Can I store and read values from card:

@dc42 March 29th 2019 (Goshen Indiana) https://www.eventbrite.com/e/2019-midwest-reprap-festival-mrrf2019-tickets-51075814135

Yes, I expect it to be available before then.

core3d.tech

@dc42 Any chance, rudimentary math available (like Build height = Build height - x)?

dc42

@core3d-tech said in Can I store and read values from card:

@dc42 Any chance, rudimentary math available (like Build height = Build height - x)?

Yes.

core3d.tech

@dc42 Excellent! People will ask why do you do this with your printer. It makes no sense and I'll say "because Duet lets me!!"

Googliola

@core3d-tech In case you have missed the discussion about variables I kicked off a while ago.

dc42 posted a first draft of the intended implementation here , I haven't had proper time to comment on yet ;-(