Cura turns heat bed off

So I was about 90% through my second xyz part when it warped and popped off the bed. When I found it, the bed was cold. I’ve had this happen a few times with taller parts, where the bed seems to turn off at a certain layer height. I’m running Cura 2.3.1 (because I’m still running a 32 bit computer).

Is there a setting in Cura that turns off the heated bed after a certain layer count? Can I set it to leave the bed on during the whole print?

 

Thanks in advance!!

Open the gcode that Cura created and look for he line of code that sets the heat bed temperature near the beginning. Then do a CTRL F to find if there are any other lines of code that would be changing the bed temperature. I don’t expect you will find any. But if your theory is correct and Cura is causing it then you will find it in the gcode.

My guess would be your bed is turning off for other reasons. Maybe something to do with wiring or something. But first let’s find out if it is actually in the gcode.

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Cannot find anything in the gcode pertaining to bed temp, but I did manually change the bed temperature right through the printer control and it seems to be holding the bed temp now. Thank you!

I had printed all the parts with cura engine embedded into repetier host. Not too modern, but pretty enough for that.

To answer your original question. Yes it is possible to add programs or commands at different layer heights. You could for example change temperature settings or turn fans on or off. Most of the time these features are not used. If you don’t remember setting it up to turn the bed off at a specific layer then it probably isn’t set.

Is it possible cura never turned it on in the first place? There is a setting for telling it that you even have a heated bed, maybe it was off?

How are you printing? From the SD card, or through a host program - Repetier Host, Octoprint, etc? If the latter, perhaps the control program is doing it for some reason?

 

The heated bed was definitely on when I started the prints and I was printing from the SD card

 

The problem never came back though. I’ve been printing all week without a problem…except for today when my printer shifted layers on the last 1/4" of the big xy part…The bed was still on and the part never separated though!

My experience says when you get a shift or failure in the last few bits of a tall part to look at your wiring. Almost every time it’s the stuff going from the top of your hot end getting stuck in something only when it moves that high.