Questions tagged [hotend]

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

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9
votes
2answers
955 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 ...
15
votes
6answers
10k 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 ...
23
votes
8answers
49k 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 ...
19
votes
2answers
18k 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 ...
11
votes
2answers
20k 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 ...
15
votes
5answers
25k 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
2k 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
547 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?
4
votes
1answer
391 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, ...
8
votes
1answer
2k 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 ...
3
votes
2answers
356 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
396 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
2answers
3k 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 ...
10
votes
4answers
1k 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
171 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 ...
12
votes
2answers
1k views

E3D Thermistor Alternative

E3D hotends use a thermistor whose legs are insulated with glass fiber sleeving and clamped down with a screw and washer: This solution enables the printing of high temperature materials, but it's a ...

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