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Questions tagged [hotend]

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

4
votes
1answer
180 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 ...
3
votes
2answers
92 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 ...
2
votes
1answer
32 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
votes
1answer
102 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
votes
2answers
81 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
votes
2answers
71 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 ...
5
votes
6answers
329 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
votes
1answer
36 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
votes
2answers
176 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
votes
1answer
471 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 ...
6
votes
1answer
198 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
votes
2answers
93 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 ...
6
votes
1answer
297 views

Filament being pushed back out the filament hole

I just got a Monoprice Maker Select v2 off eBay for $200 and I'm very happy with it (so far). I'm learning a lot, but I've run into this problem that I cannot solve: When I put filament into the ...
7
votes
2answers
64 views

RAMPS won't PID tune and shows unreal temps

About two days ago, I started seeing that my hotend was heating up erratically. I first noticed this while printing a part in PETG and the temp jumped to 260 °C. I shut down the printer at that ...
-4
votes
3answers
82 views

Heat block design without cartridge heater

Is it possible to design a heat block without cartridge heater? My idea is to build a very small heat block to increase/decrease the heat as fast as possible. The resistance of the heat block will be ...
7
votes
2answers
1k views

What is the power consumption of the heatbed and hotend?

What is the power consumption of your heatbed (size) and hotend (model)? I want to verify that it is possible to use a battery to power them.
6
votes
1answer
123 views

3d printer drip problem

I have a problem with my 3d printer. When I am printing, the printer seems to drip. I am very confused because I never saw this before and I do not know what to do. I attach a picture of it. Why ...
6
votes
2answers
60 views

Spiky hotend and bed temps

I recently rebuilt my A8 printer to have a metal frame and replaced the board with a GT2560 reva+. I'm having problems with the temp readings from both my hotend and hotbed. Using marlin 1.1x and Its ...
1
vote
1answer
95 views

Problem With large prints on Lulzbot Taz6

I have got a Lulzbot TAZ6 3 days ago. Last night I started a print which is 21 hours long and when I returned check on it this afternoon it was a complete mess. These are the objects that I wanted to ...
3
votes
1answer
317 views

How should I make my PTFE tube smaller?

So, some background. I bought a e3d Lite6. When assembling the hotend, the PTFE tube does not even go in 1/4th of the way. I found out that the issue was that the PTFE tube was too wide. It measured 4....
5
votes
1answer
1k views

Anet A8 reading 739°C from the extruder thermistor!

I accidentally let the print head of my Anet A8 crash into one of 2 clips that are holding a glass sheet onto the hot bed, and suddenly the screen went blank and the printer rebooted, then it started ...
6
votes
2answers
721 views

Hot end jamming very quickly

I have built a 3D printer out of parts from my tip, a ramps board, arduino mega, and a hot end. However, after doing a test extrusion some plastic was spewed out and then the print jammed un-...
4
votes
1answer
233 views

How to print TPU material with 3d printer

Hi everyone I would like to know is there anything special for printing tpu material e.g extruder or temperature. It's my first time to print in tpu material if you have any photos please do share ...
2
votes
1answer
64 views

3d Extruder temperature lower automatically (Prusi I3)

when I command to start print from SD card; extruder temperature raise slowly and print start but with in 4-5 minutes suddenly Extruder temperature lower automatically.
4
votes
1answer
277 views

Anet A8 - hot end temperature still same

I've recently purchased Anet A8. First print went well, but now, the hot end temperature stays at ~230 °C. When I touch it, it is still cold. I tried the thermistor, and it correctly changes ...
5
votes
3answers
822 views

How do I get a replacement PTFE tube to fit inside my nozzle?

I have been getting clogs and believe that it may be due to a damaged PTFE tube inside my hot end. I have a replacement (it came with my printer), but I can't seem to fit the tube into the nozzle. I ...
7
votes
2answers
292 views

Can cheap hotend parts sourced from China actually produce good prints?

TL;DR Is it possible to build a hotend, using separate parts, sourced on eBay, from China, and still achieve a high quality print? In my opinion, the E3D V6 hotend is rather expensive, at $/£70, ...
2
votes
1answer
87 views

Aluminium cube - fan and hotend mount - is it worth it?

Has anyone used one of these aluminium cubes? It is used to mount the fan for the hotend, when used on a delta effector, like so: Are they a good idea? Without actually buying one and trying it, ...
6
votes
1answer
175 views

Brief very slow moves near top layers

I've been trying to change to the latest Cura (v2.4) from the older v15.04 (I'm sure there's a good story about why they reset the numbers). There's an annoying behaviour in my prints now, and I can'...
5
votes
2answers
2k views

Blow vs suck air over hotend's heatsink

I've build a 3D printer from sourced parts and mounted the hotend cooler to blow air over the heatsink. Talking to a friend, he said it's better to reverse the airflow over the heatsink, but couldn'...
3
votes
2answers
611 views

Increasing hotend temperature to compensate for increased filament throughput

It seems that when filament throughput is increased (by increasing movement speed or extrusion width/height), printing temperature also has to be increased to compensate, because the filament will ...
3
votes
1answer
381 views

Change 1.75 mm 3D printer to 3.0 mm printer

I am planning on buying a cheap 3D printer to get into 3D printing, but the printer I'm planning to buy only takes 1.75 mm filament, I was wondering if it might be possible to change the hotend ...
4
votes
1answer
2k views

Extending extruder heater and thermistor wires

I wanted to extend the E3D V6's extruder heater and the thermistor wires. Is it ok to solder extension wires or does it have to be crimp only! Also are regular wires ok or does it have to be some ...
9
votes
1answer
126 views

MINTEMP error after crash

I just got my HICTOP Prusa i3 Aluminium frame printer and finished putting it together. After setting it to preheat, I realized the bed was not level - I adjusted it and accidentally caused the head ...
4
votes
3answers
1k views

true color printing with CMYK+White (not 3-in-1 diamond head RGB)

There is this great hotend called a diamond hotend, which can be used to print in 3 colors and mix them into hundreds? of colors. This can for example be used with Red, Green and Blue filament to mix ...
8
votes
2answers
474 views

Prusa i3 hotend not getting to the temperature that I want (180 to 230 celsius)

I recently finished building my first printer. The only problem that I'm having is that the hotend is not getting hot enough to start printing with PLA (180 to 230 degrees celsius), the hotend getting ...
12
votes
6answers
5k views

What is stopping us from mixing 3d filament colors in an Extruder?

This came up in one of my groups today. That we could not color bend, or mix 3d printing filaments. I have researched but I am not finding anything talking about Plastic mixing in an extruder. Why is ...
16
votes
6answers
14k views

What are the advantages and disadvantages of an all-metal hot end compared to one with a PTFE heat break?

Related to an issue I had in this question, where the PTFE tube feeding my filament to the metal tip of the extruder clogged and became discolored: what are the advantages and disadvantages of ...
14
votes
2answers
6k views

What are the parts that make up a hotend, and what do they do?

My first and only 3D printer is a Printrbot Simple Metal, which has a hotend that doesn't expose any of its internal parts. Easy for beginners, I suppose: "The hotend is that tube that heats up the ...
8
votes
2answers
8k views

How to choose an extrusion temperature?

From what I've been able to find out, online sources recommend around 205ºC for PLA and around 240ºC for ABS. But these are only guidelines, of course. Optimal printing temperature can be different ...
14
votes
5answers
11k views

Efficient and easy way to thermally insulate the heat block of the hotend?

Sparked by this question, I wanted to discuss the most efficient and also the easiest ways of thermally insulating the heat block of the hotend. I have seen Kapton tape insulations as done here with ...
7
votes
1answer
848 views

Running 12v on a 24v heater cartridge?

Would I damage anything running 12v on a 24v cartridge heater? I know it wont reach a max temperature 300 degrees celsius? I am using the e3d hotend set up
7
votes
4answers
275 views

Cleaning e3d hotend and tuning with cura?

I just received my e3d v6 hotend and I am installing it on the open source design of a prusa i3. How do I clean my hotend after each print and after using different filaments?
3
votes
1answer
250 views

Would appreciate advice on unclogging hot end [Makerbot Replicator v2]

My Makerbot Replicactor V2 constantly jams. Usually when I go to use it after it's been off for a few hours the filament has jammed and I have to take off the front fan to remove the filament. Today, ...
7
votes
1answer
1k views

Teflon tubing in nozzle throat coming out?

I have a HE3D prusa XI3 printer with an MK8 extruder. While printing or testing, the extruder makes a clicking noise as if the filament isnt getting hot enough to extrude. I began my investigation and ...
2
votes
2answers
99 views

Easiest way to build a horizontal hotend mount at home, without printing

For my Frankenstein's printer I am at a loss with the hotend mount. I cannot drill holes of 16 (upper diameter) and 12 mm (clamping diameter, 6mm high) which i would need to mount the E3D V6 clone I ...
4
votes
3answers
292 views

Stainless tip for thermistor

I would like to secure my hotend thermistor in a more reliable way (now it is just thermistor plugged in the hotend :D). I want to have a stainless steel tip for it to fix it inside hotend with a ...
9
votes
1answer
2k views

What is the best length of the melting zone in the hotend?

There are many hot end designs out thee and one difference is the length of the melting zone. The melting zone is that part of the hotend where the pushed in filament is heated up and therefore ...
7
votes
4answers
565 views

Is it necessary to have both hot ends on a dual extruder printer at the same height?

I'm thinking of another extruder on my printer, and I'm curious about this one.... Is it necessary to have both hot ends on same height? Why yes / why not? (if there is not)
7
votes
3answers
121 views

Taking a new hotend into operation (cleaning, forming, etc)

When installing and using a new hotend for the first time, which steps of action should be taken before. This will probably be more applicable to chinese clones than to authentic products (is the ...