PLA Suddenly Jamming Mid-Print

[uncle_bob]

Hi

A hot end cooling fan should be on pretty much all the time. That is a different fan (in most setups) than a filament post print cooling fan. They make it impossible to turn the first one off. The second one is indeed controllable. You get a problem when the software is a bit confused about which function a specific fan is performing.

Bob

[Ryuluce]

Hi

A hot end cooling fan should be on pretty much all the time. That is a different fan (in most setups) than a filament post print cooling fan. They make it impossible to turn the first one off. The second one is indeed controllable. You get a problem when the software is a bit confused about which function a specific fan is performing.

Bob

I am clearly talking about a post print fan, which I know should be controllable.
My issue is that I can't get the software to turn the dang thing off when I want it too.
Is there a way to fix this in slic3r? That's my question right now.

[uncle_bob]

Hi

The fan setting may be confused in Slic3r or (more likely) it's confused in your Ramps (or equivalent) or your wiring.

Bob

[Ryuluce]

Hi

The fan setting may be confused in Slic3r or (more likely) it's confused in your Ramps (or equivalent) or your wiring.

Bob

Okay, I don't think you're exactly understanding what I mean.

Here's an example part of the GCODE I'm currently producing in Slic3r: https://www.dropbox.com/s/jitinycgas...gcode.txt?dl=0

You can see where the GCODE turns on the cooling fan using M106 at the top.

I've noted each location where I want the code to turn the fan on or off, which is at each tool change. (I also edited out all the repetitive GCODE for brevity's sake)

What you don't see is that several more times in the GCODE file (about 60 times), the GCODE runs the M106 command. This normally happens when the print shifts to a new layer.

With how the GCODE is currently generating, I cannot make the fan only turn on for the PLA and not the HIPS. This needs to change, but I can't figure out how to make it work correctly.

[uncle_bob]

Hi

Ok, I promise I will no longer participate in this thread. Trying to work through a solution in an orderly fashion is obviously annoying you tremendously.

Bob