Batch Problems

[Firedawg75 0]

I have been trying for a little while to batch or make multiple items at one time. I put my models in Cura and slice them. Then I put them on the SD card and right into my Ender 3S1. I go to print and it just seems that every time part of the project works and the other part messes up. Am I missing something in the slice or a setting on my machine that is doing this? Any help would be great.

[Slashee_the_Cow 269]

So when you say "batch or make multiple items at one time", do you mean you're putting multiple models on the print bed in Cura and getting your printer to do them all in one job? There's like a zillion variables involved, including the models themselves. If you could provide the Cura project file (.3mf, in Cura go to File > Save Project) that would really help. And also if you could indicate which parts are failing, like is it small models, or whatever's printed last, or just random?

 

If you're printing them one at a time (Special Modes > Print Sequence) then make sure that your printer's profile has the correct values for the print head size and gantry height - I know a lot of Ender profiles use the same sizes and they're wrong (usually they just set the gantry height to the height of the machine and the print head size to something really small). That will make shadows appear around your models indicating the safe area around them, so make sure they don't overlap. Setting the gantry height (the distance between the nozzle and the X axis gantry) properly will make Cura refuse to slice anything particularly high, but that's so the gantry doesn't crash into something.

 

If you're printing them all at once (which is the default, I'm pretty sure) then you don't need to worry about the print head size and gantry height, because it will do a layer on all the models, moving between them. But there can be other problems, for example when I've had tall models, the force of the travel movement to the next model has made one actually topple over. Acceleration can play a big factor in that, as well as overall speed. If you're in that sort of situation, you can turn those down (a slow successful print is better than a quick failure), but first I'd try increasing my models' adhesion - give them a brim and make sure it has a fair number of lines.

 

Hope that gives you some advice. It's about the best I can do without having many details.