Questions tagged [hotend]

Questions about the standard extrusion mechanism found in FDM/FFF printers.

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0answers
46 views

Weird temperature graph and thermal runaway protection triggered

I woke up this morning with my 20 hour long print failed around 15 hour in. I checked the octoprint console, and saw a very weird temperature graph. Later found out thermal runaway protection kicked ...
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2answers
66 views

Reason behind geometry of heater blocks?

I understand the principle of why a heater block is used. Helping to reduce temperature variation as the filament is extruded using the heat capacity of the block. But I’m wondering why it takes the ...
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0answers
30 views

Can I replace hotend on Lulzbot Mini 2 with upcoming E3D Hermes?

I've seen articles about the Hermes hotend coming soon from E3D, and was wondering if anyone knows if it's possible to replace the stock Aerostruder on Lulzbot Mini 2 with it. The Aero has been giving ...
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0answers
40 views

Academic research behind hot end design?

Does anyone know of any academic research behind 3D printer hot end/liquefier design? All I’ve found is papers on liquefier dynamics where they model polymer flow and go so far as to compare the ...
1
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1answer
72 views

What causes leaking between the heat break and the heat block?

During long prints, my heat block becomes covered in whatever material I am printing. The plastic leaks from the junction between the heat break and the heat block, and runs down towards the nozzle. ...
2
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2answers
63 views

Two 12 V heater elements in series in a dual hotend

I have ordered a dual hotend Chimera and it came with 2x 12 V heater elements (in my rush I forgot to order the one with 2x 24V). Is it possible to run these 12 V heater elements in series? ...
2
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1answer
38 views

Power supply not working

Yesterday during a print, the printer just stopped working and all motors and fans stopped. My printer is a Graber i3. Just before that I saw a flare coming from somewhere in the extruder or from the ...
6
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2answers
558 views

Why don't 3D printer heads use ceramic inner walls?

Why don't 3D printer heads use ceramic inner walls? PTFE tubes melt with high enough temperatures and all metal ends risk jamming as heat makes its way up the head.
2
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1answer
49 views

What's the best way to pull out fillament from an all metal print head

Since retractions above 4 mm can cause jams due to plastic sticking to the cold half of the metal print head, what's the best way to avoid jams when swapping filaments? Cool down and yank out, ...
1
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1answer
70 views

How sensitive are all-metal print heads?

So my goal was to print in a variety of materials with my CR10, but all attempts up to now have failed. I've tried a variety of all-metal hot-ends (except Micro Swiss) with no success. For those with ...
2
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1answer
138 views

Wanhao Duplicator i3 Mini - Not reaching temperature -> screen freezes

I have been having some issues with my Cocoon Create Model Maker/Wanhao Duplicator i3 Mini. The hotend doesn't get up to temperature. I will go to any of the heating functions (start print, preheat, ...
1
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1answer
39 views

Proper hotend heater for Reprap x400 Pro V3

I'm trying to verify the correct hotend heater for a Reprap x400 Pro V3. I know a 12 V 40 W doesn't work. A working heater measures 4.4 Ω, so I'm guessing it is a 12 V 30&...
4
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3answers
554 views

Needle Hotend for nonplanar printing

To minimize retractions and travel when printing several objects, some slicers produce gcode for sequential deposition when each object is built in a traditional manner bottom up layer by layer before ...
5
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1answer
174 views

Change hotend thermistor input in Marlin

I have a Marlin driven Prusa i3 clone, by accident I cut through both thermistor wires for the hotend while it was powered on. The Arduino reset and the hotend thermistor no longer work. Since there ...
4
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3answers
208 views

Why heater blocks on hotends?

I understand that heater blocks act as kind of “low-pass-filter” on the temperature change of the hotend, but why do we need that? Wouldn’t it be better to have as little metal as possible in order to ...
3
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3answers
115 views

Can commodity 3d printer extrusion hardware and filament be used for injection molding?

Assuming you have a suitable oven to maintain temperature at the filament's melting point and a suitable mold that can handle the temperature, is a commodity 3d printer hotend and extruder, with large ...
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0answers
45 views

Hotend Will NOT Heat Up with Bullseye

So I just printed my Bullseye mod for my cr-10. But now I have a problem, when my hotend is trying to heat up it can't, because the cooling is to powerful. I know this because when I stop the fan with ...
2
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1answer
58 views

PID autotune fails under all conditions so far. Any ideas I haven't tried?

I got some i3 Prusa clones with Melzi boards with Marlin, or nearly so. One of them performed very well (considering that the board would reboot whenever power was applied to the build plate. But I ...
2
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1answer
124 views

Tuning PID parameters for hotend

I have a TEVO Tornado that I messed a bit with, so basically now I have: MKS GEN 1.4 board TMC2130 stepper drivers E3D v6 hotend A few days ago the heater cartridge so I replace it with the old one ...
3
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2answers
94 views

Filament Length too short for extruder to push filament

When filament is too short for the extruder to push will there be a stop in printing on the Ender 3, meaning that I should replace the filament when the end of the filament is near the extruder?
3
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1answer
198 views

Temperature fluctuations, is it normal?

I have an Anycubic i3 Mega-S and when I'm printing something (especially when it's hotter) the temperature increases and decreases by around 3 degrees during the print. Is this normal? I was worried ...
4
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1answer
100 views

How do I calibrate temperature control in a Repetier firmware?

I have built a 3D printer using RAMPS 1.4. I am trying to raise the hotend temperature over 180 °C. But I can hardly get to 100 °C in 60 minutes. I applied power directly to the ...
3
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2answers
271 views

Anet A8 Wrong Hotend Temp

My Anet A8 reads as 120ish degrees Celsius, but it is set to 200 degrees. I don't know if it is reading the wrong temperature because it still pushes out plastic when I force it. It will climb up and ...
5
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3answers
136 views

Is this hot end salvageable?

Kicked off the second long print in a series (printing Lack enclosure components). First 10 hour print was flawless. Started this one, saw the first layer laid down well, went to bed. Woke up to this (...
2
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3answers
3k views

Clogging due to heat creep: buy new cooler or new hotend?

Sadly, I am not able to "repair" my 3D printer. Every time, I want to print something that takes a bit longer to print, the extrusion stops at some point during the print (the first few layers are ...
2
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1answer
81 views

Loose brass heater block

I recently changes the nozzle on my Monoprice Maker Ultimate 3D printer (first time). The brass block that the nozzle screws into is free to rotate around an is wobbly. Loose block video I can't ...
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1answer
65 views

Unable to hit hot end temperature with part cooler on

I'm unable to use the parts cooler I printed. Every time I turn it on, the hot end temp drops too low, and for some reason the PID can't seem to get it back up: This is a test to simulate the issue. ...
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0answers
419 views

Is it difficult to configure a dual extruder/hotend in Marlin and setting it up

My problem is that I want to build my own 3D printer with RAMPS 1.4/1.6, I already have half of the parts, but I'm still doubting if I should use a dual extruder/hotend. I do not know if this is ...
2
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1answer
407 views

Extruder get loose

Printer: Anet A6 I'm gaving some trouble with a loose hot end. I was trying to peel of some PLA when I noticed the whole thing was kinda loose. I could pull it out very easy. So I tried to put it ...
5
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4answers
286 views

Heatercartridge bolt stuck

After a brownout a print failed and it got the whole hotend covered in PLA. I am now in the process of replacing some parts on the hotend (one of the thermistor legs broke of) and also wanted to take ...
1
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1answer
972 views

Hotend does not reach set temperature

If I set the temperature of my hotend with pronterface to 200 °C, the temperature never reaches that value. For instance, it almost reaches the target with a temperate of 196/197 °C and then starts to ...
1
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1answer
102 views

Trying to control temperature of hotend using PWM signal and MOSFET

I have a 40 W, 12 V resistance heater in the hotend. It also has a 100 kΩ thermistor built in. I am using an Arduino to read the temperature on the LCD. This is working fine. I want to use this ...
2
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1answer
2k views

Changing FAN0 to FAN1 in TriGorilla printer board

I plugged a new fan into the (TriGorilla v1.4) printer board Fan0 which I found out to be broken. I'm trying to upgrade the part cooling fan for a bigger one. Unfortunately after plugging in the old ...
2
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2answers
582 views

How to reduce +/- 5 degree temp swings of hotend (after PID tuning)

I have a Monoprice Maker Ultimate 3D printer (a rebranded Wanhao Duplicator 6) and out of the box the hotend temps when set to 200 would vary between 190 and 210. I used repetier-host to run PID ...
4
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2answers
940 views

How do I calibrate the temperature of my hotend?

I'm using a Monoprice Maker Select v2 (a Monoprice-branded Wanhao i3 duplicator) and would like to calibrate temperature readings for my hotend. I used a thermal probe on my multimeter to determine ...
1
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1answer
119 views

Filament gets coiled inside the extruder

A while ago bought a Bowden extruder to replace the old built-in one (It was malfunctioning or something that I cannot remember well). This one in particular has been acquired: The thing is, that ...
2
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2answers
228 views

Different lengths of filament is extruded with different temperatures

TL;DR: I'm looking to change the steps per mm but I'm not sure what to set it to. Do I decide on a temperature and change the rate based on the percentage for that temp? Or is there a more general ...
4
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1answer
1k views

Creality Ender-3 slanted nozzle

I’ve just received my first 3D printer, the Ender-3 and while assembling the unit I noticed that the nozzle is slanted and not vertical on its holder unit. Is this normal or do I have to try to make ...
4
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2answers
4k views

What parts are suitable replacements for an Ender 3 Pro?

I'm new to 3D printing and I recently got my first 3D printer, an Ender 3 Pro by Creality. I've tried to find information about the type of nozzles should I look for. I'm trying to find stainless ...
3
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1answer
150 views

On my TEVO Tarantula, is there a way to test that its heater pins are working?

I can no longer print anything because I get a E1 heating failed error on my TEVO Tarantula every time I try to heat the hotend. The bed heats just fine. I've removed the heating element and ...
3
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1answer
647 views

Dual extruder clogging problem

I have attached a dual extruder (2 in 2 out) to my 3D printer. There is a repeating problem of clogging while printing. I have fixed Chimera hotend. A big fan, which covers area more than the ...
6
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2answers
352 views

Hotend heating failure too short before limit

I am trying to resolve this for months and have tried almost everything, I guess. I am using Marlin firmware on a custom extruder with a custom fabricated heating block in which heater and thermistor ...
3
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2answers
202 views

Hot end considerations for 300+ °C and greater than 1 mm nozzle size for polycarbonate

I need help with finding what properties or designs I need to look for. I know that I will need these characteristics to work with the material of my choice: Can reach 300 °C or up Can handle ...
6
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6answers
4k views

Constant under extrusion and filament grinding

I sadly have a big problem since a couple of weeks and I cant fix it myself. For over 20 prints, I had the same problems: At the start, everything goes well but at some point of time, my Creality CR-...
2
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1answer
44 views

Hotend temperature reading limited

After doing some repairs and upgrades on my Ultimaker Original, I found my temperature readings to be weird. The reading is not incorrect, as long as the temperature is above 110°C. When the real ...
5
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2answers
447 views

Insulate hotend on Makerbot Smart Extruder

Simple question: how do you reinsulate the MakerBot Smart Extruders? Backstory: I work at the library. We've recently replaced the MakerBot (extruder connection issues followed by software ...
6
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1answer
680 views

Would a really short melt-zone be beneficial

IANAE (I am not an engineer), but I've been wondering: wouldn't it make more sense to limit the length of the melt-zone and hot-end as much as possible? I've been having a lot of problems with nylon ...
5
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3answers
3k views

Hot end temperature varies during print

If I set temperature say 220 °C, printer heats up to it and it only varies +/- 0.5 °C under non operating condition. But if I start a print, there's a shift of +/- 15 &...
6
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1answer
793 views

Nozzle heats while autoleveling (or before)

When I'm auto-leveling my Anet A8 with Marlin firmware, the nozzle heats to 195°C during the leveling process, which leaves drops of filament. I checked the resulting G-code but makes no sense to me: ...
5
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2answers
117 views

How to heat up a Printrbot's hotend using an SD card

My Printrbot simple metal's extruder is jammed and I need to heat it up to unjam it. Unfortunately, the printer does't want to connect to my laptop regardless of the program I'm using (Repetier-Host ...