Questions tagged [hotend]

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

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7
votes
3answers
518 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 (...
3
votes
6answers
16k 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
votes
1answer
335 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 ...
1
vote
1answer
234 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. ...
2
votes
1answer
690 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
votes
5answers
2k 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 ...
3
votes
1answer
5k 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
vote
1answer
300 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
votes
1answer
6k 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
votes
2answers
3k 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 ...
5
votes
2answers
3k 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
vote
2answers
423 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 ...
4
votes
2answers
639 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
votes
1answer
3k 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 ...
5
votes
3answers
8k 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
votes
1answer
395 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 ...
4
votes
1answer
2k 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
851 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
708 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 ...
8
votes
7answers
17k 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
78 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
729 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
1k 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
5answers
11k 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 °C. I've already auto tuned PID ...
6
votes
1answer
2k 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
212 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 ...
7
votes
1answer
2k 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 ...
6
votes
2answers
89 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
203 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 ...
8
votes
2answers
13k 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
297 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
196 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 ...
13
votes
1answer
20k views

Which is the difference between MK6 and MK8 and even MK10?

I made and assembled my own 3D printer two years ago and I notice that some extruders are MK6 and MK(*whatever). Some of them has the block fuser horizontal and others vertical, then uses a nozzle ...
1
vote
1answer
233 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 ...
4
votes
1answer
760 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....
7
votes
2answers
4k 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 ...
7
votes
2answers
2k 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
2answers
595 views

How to print TPU material with 3D printer

Is there anything special for printing TPU material e.g extruder or temperature? It's my first time printing TPU material, so if you have any photos, it would be great if you can share them.
2
votes
1answer
109 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
500 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 ...
6
votes
3answers
2k 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
817 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
135 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, ...
5
votes
1answer
365 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'...
4
votes
2answers
6k 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'...
4
votes
3answers
3k 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 ...
5
votes
3answers
1k 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 of ...
4
votes
1answer
4k 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 ...
8
votes
1answer
201 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
4k 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 ...