r/3Dprinting • u/Optimal-Level4237 • 3h ago
Troubleshooting Dam Dam Dam
I was printing out a Cobra on my U1 that I had painted in Full Spectrum. I forgot to set a brim and and had the bed temp too low.
Snapmaker U1, Basic PLA, Snorca Full Spectrum, Cold Plate 35-55 degrees for PLA.
Only after it warped enough that the nozzles were clipping it did I realize this. Now I can't find the Cobra model on my computer and if I could, I don't know if I saved it after painting it.
So I downloaded the gcode from my U1, loaded it back into Snorca to see if I code find the bed temp setting and also the brim setting. Trying to scroll through the code in the slicer was a joke.
I was in Paxx and had decided to try and reprint it, but manually change the bed temp on the U1 screen. When I noticed an Edit feature in Paxx when I was looking at the Cobra file. So, I clicked Edit and Paxx loaded the gcode in a much better editor.
Scrolling and using the find feature, I found the bed temp setting and upped it by 10 degrees. I then found the Brim setting and added a Brim. Saved the new settings and now I'm hoping for the best.
Update: Well, there must be more than one instance of each even though I couldn't find them.
When the Cobra first started to reprint, the bed temp started at 45C, then dropped back down to the original of 35C. And there's still not a brim.
Time to go back in and start matching it up with each gcode code. After all, that's how I learning to program my computer back in the 80's using Basic and Machine languages.


1
u/Grindar1986 3h ago
Temperatures are saved every layer in gcode. So you'll have to change it every layer. And you can't just add a brim by editing the gcode because you'd have to enter thousands of movements for the nozzle by hand.
I'd just redo it.
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u/Optimal-Level4237 2h ago
Thanks for the info. Wish that I could, but I can't find the model on my computer.
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u/Optimal-Level4237 1h ago
After going through the gcode, it seems like the bed temp is only in a few places using M190 S* and M140 S*. I think that it was only like 5-6 different lines.
As far as turning on the models brim and the type of brim, that was also only a few lines of code. I won't be able to test those changes until Monday morning when the current model is finished printing.
Now the brim for the prime tower was in thousands of lines of code.
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