When printing intricate patterns like the honeycomb infill that’s standard in slic3r, the extruded filament doesn’t stick to itself at all, it just sticks on random points and then is dragged until it sticks again, creating this terrible mess of plastic that looks like spaghetti. The plastic bleeds over the edge of the cubes, too. What do I need to do to get this right?
What temperature does your extruder report when printing? I ask this because it seems the temperature is much too hot.
The extruder reports between 170-180, but if I keep the fan on, it will momentarily dip down to below 170, causing “Cold Extrusion Prevented” in the log.
My thermistor doesn’t completely touch the extruder base, I’m guessing that not only throws the temperature off, but that it also makes the thermistor sensitive to being “cheated” by the fan into thinking the print head is cooler than it really is.
I’ll adjust this and try a new print, hopefully it will come out cleaner.
Indeed, your thermistor is probably not reporting the correct value. Feel free to link some pictures of your thermistor assembly so we can take a look.
Here’s an image of the assembly and the new print after the thermistor being adjusted to touch the heater block. This print is made at 190C but I think I could lower it to 185 and get a cleaner finish. The outer edges don’t look very clean, but I can’t measure the accuracy of the print for sure until it’s finished - I’ll post an update.
All better! 
Thanks for your input! If you hadn’t said that the print looked like it had been printed too hot, I would never had suspected the extruder thermistor.
Your thermistor is supposed to be placed inside the little hole!
~ Tectu
[quote=“Tectu”]Your thermistor is supposed to be placed inside the little hole!
~ Tectu[/quote]
Holy hell! That explains a lot… haha! Thanks for the reply, I’ll get on that right away!