7 votes
Accepted

How to tell if PLA temp is too hot/cold

Too Hot If you're printing too hot (with any filament, not just PLA) you're going to see stringing and blobs/oozing because the material is getting runny and exiting the nozzle in an uncontrolled ...
  • 365
4 votes
Accepted

How to print at low temperatures (filament melting at about 70 °C)?

70 °C is a specialty filament. It is well below the MIN_TEMP defined in any sane firmware. In Marlin, you can't turn on the extruder in any way, while this is ...
  • 19.8k
4 votes

What temperature should I bake PLA prints at to increase strength?

I've only annealed PEEK personally, but a quick search returns varying recommendations: All3DP recommends 1 hour at 70 °C. X3D recommends 1 hour at 110 °C. Matterhackers recommends 10 minutes at ...
  • 2,322
4 votes
Accepted

Ender 3 v2 temperature drop

Well, this was a setup error. I am amazed it worked at all, but the reason this was happening was that the power supply was set to 230 V from the factory. I am in the US, so the household current is ...
3 votes

Ender 3 hot end heater "stuck on"

Your onboard MOSFET has failed, you need to replace the component, yet better the board. It seems the MOSFET isn’t reacting to the signal from the microprocessor, instead it is “always on”. Note that ...
  • 31.4k
3 votes

How do I determine the glass transition of filament from its sales listing information?

The glass transition temperature is not always indicative of strength. Some polymers are solid well above that temperature, see https://omnexus.specialchem.com/polymer-properties/properties/glass-...
  • 3,876
3 votes

How to print at low temperatures (filament melting at about 70 °C)?

In Cura Machine Settings, add M302 S70. Apparently, M302 P1 and M302 S0 do nothing, you need ...
2 votes

Why does my Ender 5 Pro bed stop heating 10 °C below the set point?

Searching the error message "Heating Failed: Bed Printer Halted, Please Reset" seems to indicate that the bed heater is timing out from not reaching temperature. If you measure the voltage ...
  • 2,148
2 votes

What temperature should I bake PLA prints at to increase strength?

CNC Kitchen has a series of videos covering research on this topic, ending up with using salt. The oven temperature used for PLA was 200˚C reaching 190˚C at the core ...
2 votes

Direct vs Bowden Extrusion when printing in temperature fluctuating environment

I don't think your temperature based explanation makes sense. This looks to me just like a first layer smashed against the bed, possibly too much due to nozzle being too low, followed by ...
2 votes

Acceptable temperature variation in heated bed

80 °C is way too hot for the bed with PLA. The highest bed temperature you can use without serious deformation of the printed part is around the glass transition temperature of the material - 55-60 °C ...
1 vote

Temperature problems

This is a common problem that affects many printer types, and is caused by the fact that most controller boards do not have over-voltage protection on thermistor (temperature sensor) inputs. If the ...
  • 2,972
1 vote

How do I determine the glass transition of filament from its sales listing information?

If there isn't a TDS on the manufacturer's website, you could email them and ask for it. If they won't give it to you, you could ask for the SDS to see if it has any additives. Polymaker has a TDS for ...
1 vote

K-Thermistor vs Ender 3 Stock Thermistor: Problem with bad reads

Even if it works properly (which it seems not to do), this type of thermistor will only have a resistance of around 100 Ohms at 350°C, which is too low to be useful in your printer. It is rather ...
  • 2,972
1 vote

What is the optimal temperature for PLA+?

Usually the filament spool will have a range of temperatures for the best nozzle temperatures and bed temperatures to use. To answer your quesstion there are several considerations. Not all PLA's ...
  • 2,148
1 vote

Calculating suitable pressure for compressed-air-based cooling

Firts of, I created a quick simplified simulation in Matlab of cooling from 210°C to bellow 50°C. Here is a plot showing the difference in temperature curves in time. As stated, it is simplified, ...
1 vote

Calculating suitable pressure for compressed-air-based cooling

Maybe you're thinking of 'Vortex Cooling' which uses a tuned vortex tube to create hot and cold airstreams. The Wikipedia example uses 100 SCFM of filtered compressed air at 100 PSI to create a 70 °C ...
  • 196
1 vote

BLTouch error causing bed and nozzle temp setpoints to change to zero

I was wondering if it had something to do with my Z axis and BLTouch. When I unplugged the Z Axis on the printer the extruder wouldn't lower only raise so I plugged it back in and it moves in the ...
  • 51
1 vote

3D printing ESD safe/high temp parts

There are ESD safe nylon filaments available, but even they will be well above their glass transition (= softening and sagging under their own weight) before they get up to 165 °C. What I'd recommend ...
  • 1,586
1 vote
Accepted

Lowest temperature PLA pulley print will withstand

I found this article which seems to suggest PTFE is a good choice of plastic for a cryogenic environment. I've read that there are PTFE filaments available for FDM printers, though there are some ...
  • 1,586
1 vote

Figure out max bed temperature

The firmware has a fixed limit for the bed, this is also the maximum value you can set through the LCD interface, the default is e.g. set in the configuration file for Marlin, it contains the ...
  • 31.4k
1 vote
Accepted

Irregular adhesion on Creality glass bed

The only time I've seen lifting, away from the edges of the part like this, is when the bed is contaminated with something which will stop the print sticking, like fingerprints and such. A thorough ...
  • 176
1 vote

Why does my Ender 5 Pro bed stop heating 10 °C below the set point?

I was having the same issue after installing BTT SKR Mini E3 V2 and BLTouch on my Ender 5 Pro. I did two things and my bed heats normally now, but I changed/did both things and can't say which fixed ...
1 vote

Horizontal lines on feature/geometry/density change

This is varying underextrusion due to loss of material to oozing in the interior of the model. When printing the infill pattern, the nozzle doesn't follow a single continuous extrusion path, but moves ...
1 vote

Anet E10 - Print above 270 °C or "maxtemp" error

Your firmware has set a limit of 270 °C, normally, (default Marlin configured value) this is 275 °C. It appears that the Anet E10 developers have edited the value if you cannot exceed the 270 °C ...
  • 31.4k
1 vote

Cura: How to prevent my 3D printer from auto cooling after prints

In CuraEngine's FffGcodeWriter::finalize method, G-code to zero the bed and enclosure temperature is only written if the machine profile defines a heated bed/...
1 vote
Accepted

New Build. Hotend Overheating. Not Printing Yet

3.9 ohms is a 12V heater. It won't work on 24V.
  • 2,148
1 vote

Drop in temperature after couple layers

I had a similar problem with an Anet A8 once. The problem was, that the thermistor wasn't mounted right in the heat block, so the air flow cooled it while the print head was moving. You can check, ...

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