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13 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 ...
Rykara's user avatar
  • 465
6 votes
Accepted

At what bed temperature is it safe to remove PLA prints?

The reason we use heat in our platforms is to lower the temperature difference between filament being laid down and already hardened filament as some filaments shrink when cooling down (ABS is ...
0scar's user avatar
  • 36.3k
5 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 ...
Andrew Theken's user avatar
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 ...
Trish's user avatar
  • 22.2k
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 ...
Davo's user avatar
  • 2,440
4 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-...
FarO's user avatar
  • 4,448
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 ...
0scar's user avatar
  • 36.3k
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 ...
Jorge Mercent's user avatar
3 votes

At what bed temperature is it safe to remove PLA prints?

You haven't said what printer or bed you are using, or given any details of what kind of contact area you have with your print, so I'm only really able to give you a generic answer, but it will hold ...
Aaargh Zombies's user avatar
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 ...
Perry Webb's user avatar
  • 2,376
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 ...
R.. GitHub STOP HELPING ICE's user avatar
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 ...
R.. GitHub STOP HELPING ICE's user avatar
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 ...
R.. GitHub STOP HELPING ICE's user avatar
2 votes
Accepted

PLA temperature tower failed

For the most part, a well dialed-in printer should be able to print PLA just fine along that entire range of temperatures. You seem to have various other problems going on which make a temperature ...
R.. GitHub STOP HELPING ICE's user avatar
2 votes
Accepted

Print failure due to heater inconsistency

This is very similar to what I recently experienced in the question Diagnosing sudden problem with hotend temperature, where the root cause seems to have been a bad thermistor - internal conductors ...
R.. GitHub STOP HELPING ICE's user avatar
2 votes
Accepted

Bad print quality, Temperature Fluctuates about +/- 8 degrees

This looks like a an extruder PID tunning issue. In Marlin ( I assume this printer use Marlin) there is a auto-tune command for the temperature PID (M303) you can check this page: https://www....
kolergy's user avatar
  • 317
2 votes

Nozzle temp always reads 236 °C, even when it's room temp (Ender3 V2 Neo)

If the temperature reading shows increases above 236 when heating, but can't show anything below, you have a short of approximately 300 ohms across the thermistor wires. This could be something wrong ...
R.. GitHub STOP HELPING ICE's user avatar
2 votes
Accepted

Why is MPC better than PID for 3D printers, and (why) is it more useful for 'high-power heaters'?

Short answer PID reacts only after the temperature changes are registered by the sensor. MPC instead calculates the expected heat loss before the temperature actually changes and then applies heat to ...
Fritz's user avatar
  • 245
2 votes
Accepted

Does running a PID Autotune with an increased cycle count result in more accurate PID values?

In short, yes, More PID cycles will generally yield 'better' results. However, the PID values are being averaged over these multiple runs, and it will very quickly pass the point of diminishing ...
craftxbox's user avatar
  • 854
2 votes
Accepted

Hotend temperature climbs past set value

Does my reasoning make sense? Yes this makes sense, the current PID schedule is not able to cope with the higher power cartridges. It remains a question if you will get it stable after a PID tuning ...
0scar's user avatar
  • 36.3k
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 ...
Mick's user avatar
  • 3,180
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 ...
TreeBarkEater's user avatar
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 ...
Mick's user avatar
  • 3,180
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 ...
Perry Webb's user avatar
  • 2,376
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, ...
TurgonTheKingOfGondolin's user avatar
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 ...
BobT's user avatar
  • 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 ...
rsadler's user avatar
  • 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 ...
Zeiss Ikon's user avatar
  • 1,730
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 ...
Zeiss Ikon's user avatar
  • 1,730
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 ...
0scar's user avatar
  • 36.3k

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