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Questions tagged [hotend]

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

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votes
1answer
29 views

CR-10 heating problem

I've been happily printing on my CR-10 for a couple of months but now there is an issue. As soon as I turn it on the hot-end begins heating. I have replaced the heater and the thermistor but the ...
2
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1answer
62 views

Thermal runaway

I have a bit of a headache with my Anycubic i3 Mega which originally had a Trigorila 32-bit board. I decided to swap it because of loud A4988 drivers and got myself an MKS Robin Nano 1.2. This printer ...
4
votes
1answer
91 views

What type of plug is this?

I'm not really sure what the type of plug on the heater cable is. Is it a Molex KK or maybe a JST PH? The printer is a Prusa I3 Hephestos (aka BQ Hephestos). It came with this "BQ HOT-END ...
1
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1answer
34 views

Increase hotend temperature on Monoprice Ultimate 2

I'm fairly new to 3D printing and I have a Monoprice Ultimate 2. The Monoprice website says it can reach 250 °C with a 100 °C bed temperature. I want to print some projects using Matterhacks Nylonx, ...
2
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5answers
81 views

Do thermistors degrade in accuracy without hard failure?

Lately I've been having problems with overhangs not adhering when curvature is outward (stringing across instead) that look like what you'd see at insufficient temperature, and that go away with ...
4
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2answers
279 views

PETG grinding with direct drive extruder

I've been wrestling with a filament grinding problem for a few weeks now and I'm stuck. The problem manifests itself as starting a print alright then extrusion stops while the printer keeps moving. ...
0
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1answer
38 views

Is nozzle no longer heating up correctly related to hotend insulation being pulled off?

The insulation of the heater block got pulled off... I was trying to print ABS on my TEVO Tornado, overnight. But I not-so-smartly left the window open overnight, thinking it was alright (as to remove ...
1
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2answers
81 views

Is there such thing as a sealed dual extruder hot end?

Does anyone know of a hot end that is sealed? What I meaning is that the hot end has a rubber seal where the filament enters to keep the top airtight (in order to eliminate oozing). I am looking to ...
2
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3answers
72 views

Does a teflon insert in an E3D V6 clone limit it's useable temperature so it can't print nylon?

I'm new to this game, and recently upgraded the hotend on my Ender 3 Pro to a clone of an E3D V6, as I'm keen to do nylon prints at some point. I noticed however that this one I got has a teflon liner ...
0
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1answer
93 views

Thermal runaway when power on

I get the error "Thermal runaway on E1. Reset printer." today on my Tevo Tarantula when powering on the printer. The display shows the error and the ...
2
votes
1answer
62 views

Displayed temperature jumping while printing for a long time

I have a Felix Tec 4 (Single Extruder) and at the moment I print for a relatively long time compared to my other prints. Recently I noticed that after a few hours of continuous printing the displayed ...
0
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2answers
65 views

What is the thinnest hotend?

I have a few 3D printers and now want to start building a custom 3D printer. I want to build a 3D printer with multiple nozzles, and I want to make the hotend thin so the nozzles can be closer ...
0
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3answers
107 views

Can I replace the cooling fan blade for the hot end on creality ender 3?

I broke one of the blades of the fan and that's making the x-box vibrate. Other than that it works fine and I can still print at a very low flow rate and a lot of noise. Will replacing the blades, not ...
1
vote
1answer
53 views

Upgrade hot-end to achieve higher temps (e.g. for PETG)

I'm struggling to get my printer to the temps required for modified PETG (the filament I have is Fillamentum CPE and recommends 255-275 °C), I currently can only reach 245/250 °C even if my target ...
1
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1answer
43 views

Issue with the new heating cartridge of my 3D printer

Recently I had an issue with my heating cartridge, and I decided to change it. For my Anet A8, I needed a 12 V 40 W one. I ordered it but I received a 15 mm length instead of 20 ...
1
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1answer
151 views

What hotend designs exist as paired all-metal and PTFE-lined versions?

I know that the E3D V6 hotend exists in both the all-metal V6 version, and the PTFE-lined Lite6 version with the same mount and form factor. What other hotend designs are available like this?
0
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2answers
187 views

All-metal hotends are less forgiving / not as good for PLA — but how bad?

Currently, I'm using a Creality printer to print PLA (that's what I have on hand) but I'm definitely interested in working with other materials that require higher temperatures (both much higher, and ...
1
vote
1answer
367 views

PID autotune fails with a temp too high

Working on upgrading my Ender 3 to a dual extruder setup using the Winsinn dual hot end and MKS Base V1.6 motherboard using Marlin FW 2.0.5 and am unable to get the PID autotune to work. When I start ...
0
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1answer
45 views

Using 2x CAT6 cable for 24 V hotend

I'm looking to replace the troublesome ribbon cable of my Duplicator 6 with a 2xCAT6 arrangement for all things extruder. Are 4 26AWG wires (2 sets of 2 twisted pairs) enough copper for 50W heater at ...
1
vote
1answer
486 views

PID tuning 50 W cartridge in Marlin

Recently I decided to upgrade my Geeetech A10 (GT2560 v3.0 board) with E3D Chimera, Marlin 2.0.3 and more powerful 50 W heater cartridge. I wired everything up and tried to PID tune the hot end, ...
1
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4answers
3k views

Ender 3 pro extruder skipping steps, tried multiple things

I've already asked this question somewhere else but unfortunately I had little luck. So... my Ender 3 Pro extruder just started skipping steps, as in the gears (and the gear pinion) will rotate but ...
1
vote
1answer
221 views

How is heat creep characterized?

I have a Delta printer with Bowden extruder and all-metal hotend. When I start printing, the hotend gets often jammed. It seems to be independent of the print I am currently doing. Retraction does not ...
0
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1answer
214 views

PID autotune fails 'Temp too high' with 12 V heater cartridge but works with 24 V?

So, I have created my own heater block for my 3D printer and mistakenly was using a 12 V, 40 W heater cartridge thinking that was the standard for my Ender 3, when in fact it is supplied ...
1
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2answers
333 views

All-metal hotend, cooling fan failures, and cold-side PTFE

I'm getting a pet bird soon, and I know that off-gassing from heating PTFE above 300 °C creates noxious fumes, which are bird-killer1. To try to prevent even the chance of that I'm replacing my ...
0
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0answers
152 views

PID Autotune not working properly

I'm running the autotune PID because I had to replace the hotend. The command that I launch is M303 E0 S200 C9. But from the temperature chart I see that he has ...
0
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0answers
705 views

Ender 3 overshot the set temperature and hitting MAX TEMP error

So for the past few months I have been printing in my Ender 3 and everything ran smoothly. But suddenly a few days ago I tried to print and the hot end temperature just keeps on rising past the set ...
1
vote
2answers
280 views

Do spare throats or a heater blocks ever break?

A question to those who have a 3D printer. Have you ever needed a spare throat or a heater block? Do they ever break? I just bought some spare parts: heaters, thermistors, nozzles... However, I am ...
1
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1answer
101 views

PLA from the top of the hotend

My custom printer is affected by a strange problem. After 30/40 min printing without any problem, PLA starts blobbing from the top of the hotend. What does it means? Where to start checking? It is ...
2
votes
1answer
1k views

All-metal hot-end Creality Ender 3 Pro jamming issues

I have a Creality Ender 3 Pro printer, and just installed the Micro-Swiss All-Metal Hotend for CR-10 S Pro. After installing following the video instructions by Micro Swiss and Teaching Tech, I set it ...
3
votes
2answers
862 views

Can you print at low speeds with e3D Volcano hot end?

The e3D volcano features an extended heater block of length 20 mm with the cartridge heater running parallel to the filament. The purpose of this is to increase the speeds at which filament can ...
3
votes
1answer
113 views

Are there multi-filament hardened nozzles or equivalent systems?

I discovered "diamond" nozzles (name of the design, not the use of diamond material), which have multiple filament inputs (designs for 3 or 5) and a single output nozzle, see figure. They look like a ...
1
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2answers
254 views

Hotend doesn't maintain temperature

I got an Anycubic Predator last month, and after resolving a few mechanical problems, I was able to get it printing decently well. The only significant modification I've made so far is a set of 8-...
0
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0answers
325 views

How to get stuck filament out of this direct drive extruder?

I recently installed a "Direct Extruder System" on my Ender 3 using a 3D printed mount. For the first few minutes it worked fine, but after I looked at it once again, I saw that there's nothing ...
2
votes
1answer
196 views

Remove broken heatbreak

I'm trying to replace my hotend with the E3D Hemera direct kit. I got to the final step of hot-tightening the hot side and managed to snap my heatbreak. The part that screws into the heat-sink is ...
4
votes
1answer
240 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 ...
2
votes
2answers
208 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 ...
0
votes
1answer
57 views

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

I've seen articles about the Hermes (now rebranded to Hemera) 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....
3
votes
0answers
56 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
vote
1answer
156 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
votes
2answers
137 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
votes
1answer
97 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
votes
2answers
656 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
votes
1answer
55 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, ...
2
votes
1answer
444 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 ...
4
votes
2answers
438 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
vote
1answer
58 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
votes
3answers
733 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 ...
6
votes
1answer
945 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
votes
3answers
710 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 ...
4
votes
3answers
295 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 melting point and a suitable mold that can handle the temperature, is a commodity 3D printer hotend and extruder, with large ...