Skip to main content
Share Your Experience: Take the 2024 Developer Survey
19 votes
Accepted

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

All credits for the following go to user "vermon" who posted in this thread. The following is a heavily amended version from his longer answer there. Makerbot did start its hotend series using MK as ...
mac's user avatar
  • 4,725
17 votes
Accepted

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

This is a good question to make a comparison table. All-metal hotends Vs. PTFE liner hotends. All metal: Works well for high (+250ºC) temperatures filaments like nylon or PC. No need to replace the ...
JorgePerez's user avatar
17 votes
Accepted

What is the difference between a Bowden extruder and a direct drive extruder?

A Bowden extruder and a direct drive extruder are two different types of extruder systems used in FDM 3D printers. Both feed filament into the hotend, but differ in the way the filament is pushed into ...
kosteklvp's user avatar
  • 1,181
15 votes
Accepted

Filament isn't going into the Bowden tube, instead it goes "into the room"

This is typically caused by resistance in the tube or hotend but in your case it appears to be mostly caused by a very poorly designed extruder. The filament needs to be constrained closer to the ...
tjb1's user avatar
  • 2,110
12 votes
Accepted

How do I calibrate the extruder of my printer?

Basic process To calibrate the extruder you would need to verify that the requested amount of filament is actually what is being moved by the extruder. Structural or temporary problem A first thing ...
0scar's user avatar
  • 36.1k
11 votes

Extruder is running backwards?

You can either flip the connector for the motor around (i.e. plug it in backwards) or (if you are using Marlin firmware) look for the following line in configuration.h: (using the Arduino editor open ...
Tom van der Zanden's user avatar
10 votes
Accepted

Why does my PLA filament form a spiral shape and clog my extruder?

The shape you get is quite easy to explain. It's the shape of the lowest energy possible in your situation. Simple but it doesn't explain the issue... or does it? It does. The filament cannot be put ...
darth pixel's user avatar
  • 3,476
10 votes
Accepted

How to choose an extrusion temperature?

Printing temperature basics Manufacturers generally specify a somewhat wide range of printing temperatures, and what temperature you should actually need can only be determined by trial and error: ...
Tom van der Zanden's user avatar
10 votes

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

Yeah, Yeah... Old topic I know, but still an ongoing topic for new and old hands alike. "All metal or PTFE lined" along with "Bowden or Direct drive" Those are the questions! This is a very unusual ...
Mark Wood's user avatar
  • 101
10 votes

Filament isn't going into the Bowden tube, instead it goes "into the room"

Your extruder is encountering resistance and the filament path is too open. Your teeth seem to be biting in too hard. Loosen up your tensioners a bit. Teeth biting too hard deforms the filament. ...
silver's user avatar
  • 249
10 votes
Accepted

Can an extruder rated for 24 V work with 12 V ATX power supply?

Electrical engineering can be quite complex, but in this case you can save yourself with same simple equations/relations. Using the following formulae: Voltage ($\ U$) equals current ($I$) multiplied ...
0scar's user avatar
  • 36.1k
9 votes

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

The "quick and dirty" approach is to just slap a bunch of Kapton tape on there. The more the better! (Until you need to dismantle for maintenance, anyway.) I find pre-cut ceramic tape + kapton tape "...
Ryan Carlyle's user avatar
  • 6,606
9 votes

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

In general, metal extruder without PTFE feeding is useful when printing with materials that require high temperature to melt: 300oC and above. Polycarbonate with recommended printing temperature at ...
Mikhail Z's user avatar
  • 888
9 votes
Accepted

PTFE pulled into extruder gears

You are probably right, I have a Tarantula as well, and this happened many times to me. The reason is mostly because the hotend fan gets too hot, stops working, then, the filament in the aluminium ...
Gui Herzog's user avatar
8 votes

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

I ask myself why people hassle with kapton tape when it is so easy to use teflon sealing tape to isulate the hotend. This tape is slightly foamed to allow better sealing when used for sealing "tube ...
Rolf's user avatar
  • 81
8 votes

Pulling filament through long tubes

I would say it's not the best approach. In the situation you've described I would rather install some kind of vertical ring a bit above your printer. This ring would organize your filament going ...
darth pixel's user avatar
  • 3,476
8 votes
Accepted

Silver Solder specifications for hot end heating element

The first is not suitable. ASTM96TS Sn96Ag4 has a melting point of 221–229 °C according to Wikipedia. Pb96Ag4 would be OK, but that is not lead free so doesn't seem to match your description. ...
Sean Houlihane's user avatar
8 votes
Accepted

Printer is Confused-Printing in Air Literally

Here's the pattern. The problem is, you didn't slice the g-code using support. It won't print right without it.
Pᴀᴜʟsᴛᴇʀ2's user avatar
8 votes

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

Injection molding requires two major components: pressure and heat. So your question can be broken down into those two halves: can your average extruder handle injection molding temperatures, and can ...
Nach0z's user avatar
  • 911
7 votes
Accepted

Extruder stepper motor problem, what can be wrong?

Your controller board probably requires calibration. It sounds like, maybe, the extruder's stepper motor is not receiving sufficient current, to make it turn. Or, somewhat confusingly, maybe the ...
Greenonline's user avatar
  • 6,528
7 votes
Accepted

If I have a nozzle clog, can I easily get rid of it by simply replacing the nozzle?

The nozzle on a Prusa i3, if a genuine Prusa, would be part of the E3Dv6 assembly and is removable. It's wise to heat the nozzle to 150°C or higher, and handle with the care necessary for something ...
fred_dot_u's user avatar
  • 11.8k
7 votes

Extruder clicking Tronxy x5s

The clicking you are hearing is either the stepper motor skipping steps or the hobbed gear losing grip on the filament. Either way, it means that the filament opposes an unusually high resistence to ...
mac's user avatar
  • 4,725
7 votes
Accepted

Installing bowden tube into E3D V6

You may need to secure the pneumatic coupling in the closed position with a small plastic clip (which should be supplied with the hot end). You can print your own, providing that your printer will ...
Mick's user avatar
  • 3,180
7 votes

Why do nearly all cheap 3D printers have a Bowden extruder?

As I understand it, there's really no good reason for this except "momentum". At some point in the not too distant past, a Bowden extruder was seen as an "upgrade" over direct ...
R.. GitHub STOP HELPING ICE's user avatar
6 votes
Accepted

How to build the extruder motor holder for the Kossel Mini

Have a look at the image provided in this seller's part description. it probably says more than my words could (which would also only rely on images - your parts just looked like I saw them somewhere ...
kamuro's user avatar
  • 2,932
6 votes
Accepted

What grade of wire is required for the heating element on a J-Head extruder?

There are a number of things to consider: Wire Gauge: a typical 40W, 12V heater draws around 3A. 24 AWG or lower would be appropriate (copper wire, CCA will require thicker gauge). Insulation: the ...
Tom van der Zanden's user avatar
6 votes

Filament isn't going into the Bowden tube, instead it goes "into the room"

There are two parts to this problem. First, the extruder is meeting too much resistance in the print. There can be several causes, from the first layer being too low, a blocked nozzle, too low a ...
Sean Houlihane's user avatar
6 votes

Apparently systematic nozzle clogging

The Micro Swiss hotend uses an all metal hotend. These type of hotends are more difficult to operate considering they do not have a Teflon liner that shields the filament from heat exchange from the ...
0scar's user avatar
  • 36.1k
6 votes
Accepted

What parts are suitable replacements for an Ender 3 Pro?

The Ender 3 takes an M6 thread (metric 6 mm diameter). Measurement of stock nozzle shown. Most sellers will list compatible printers Ender 2, Ender 3, Ender 4, CR-10, CR-10S, CR-10 Mini, CR-10-...
iCollect.it Ltd's user avatar
6 votes
Accepted

Why won't my filament feed through the extruder anymore?

I figured out the issue. I think I was shoving it in the wrong hole. I took apart my extruder component. There's a good video on it here. But basically, you just have to loosen the two bottom screws ...
kane's user avatar
  • 479

Only top scored, non community-wiki answers of a minimum length are eligible