Control dual heaters of the same heatbed.

KerseyFabrications

@brunofporto said in Control dual heaters of the same heatbed.:

Another situation would be a huge area printer with a segmented heated bed - where I can head only 1/4 of it, for example, when using "area 1" and the firmware would know that - that I have four heaters at the same printer and a series of possible combinations of them (1/4, 1/2, full bed)

I'm actually building a printer now that will have a zoned heatbed and while I'm building it initially with Arduino/Marlin electronics, I was thinking of switching to Duet3D as an upgrade. I was going to work on the Marlin code to do this in software and expand G-code to support it. Has there been any work on this for RepRap? I could also write similar code once I switched over.

brunofporto

@kerseyfabrications A simple macro could change the configurations between areas. But I am not sure how it will control multiple all heaters as one.

dc42

@kerseyfabrications said in Control dual heaters of the same heatbed.:

@brunofporto said in Control dual heaters of the same heatbed.:

Another situation would be a huge area printer with a segmented heated bed - where I can head only 1/4 of it, for example, when using "area 1" and the firmware would know that - that I have four heaters at the same printer and a series of possible combinations of them (1/4, 1/2, full bed)

I'm actually building a printer now that will have a zoned heatbed and while I'm building it initially with Arduino/Marlin electronics, I was thinking of switching to Duet3D as an upgrade. I was going to work on the Marlin code to do this in software and expand G-code to support it. Has there been any work on this for RepRap? I could also write similar code once I switched over.

RepRapFirmware on the Duet WiFi/Ethernet already supports up to 4 bed heaters, see https://duet3d.dozuki.com/Wiki/GCode#Section_M140_Set_Bed_Temperature_Fast.

KerseyFabrications

@dc42 That's great! Thanks for the reply! Is this reflected on a display somehow? Meaning can I see the temperatures of all four heaters? Also, do you know any printer using this today?

dc42

PanelDue only supports displaying one bed temperature. I think Duet Web Control will display all of them, but I haven't confirmed that. I'm fairly sure someone is already using multiple bed heaters because I implemented it in response to a particular request.

deckingman

@dc42 said in Control dual heaters of the same heatbed.:

.............. I'm fairly sure someone is already using multiple bed heaters because I implemented it in response to a particular request.

That would be @justine-haupt in this thread https://forum.duet3d.com/topic/3516/using-multiple-bed-heaters. She's using 4 bed heaters with a Duet.

Edit. BTW, I found that by just searching this forum for "multipe bed heaters". It seems the form search funtion works really well.

KerseyFabrications

@deckingman My apologies for wasting your time.

@dc42 Thank you for the support. I'm seriously considering ordering one of these now once I've finished figuring out what all I need.

deckingman

@kerseyfabrications
Oh, I didn't mean that in a derogatory or critical fashion. If you think that is the case, then I apologise in turn. It was meant as a "for future reference" comment.
If we all used the search function more (myself included) then we might get the information we need faster than starting a new thread and awaiting a response.
HTH

KerseyFabrications

@deckingman No problem. It's so difficult to tell online sometimes, especially the way some people are in forums. I didn't mean to jump to conclusions.

deckingman

@kerseyfabrications said in Control dual heaters of the same heatbed.:

@deckingman No problem. It's so difficult to tell online sometimes, especially the way some people are in forums. I didn't mean to jump to conclusions.

No worries. As you say, without the benefit of facial expressions, it's sometimes difficult to understand the meaning behind a comment.

brunofporto

@deckingman said in Control dual heaters of the same heatbed.:

It seems the form search funtion works really well.

It is really dumb and obvious when I use the right set of words to search something I was struggling to find information about