K Extruders I've gone a brought a 3d REPRAP printer on line and was trying to find out some more information on it. I was hoping to have the STL files for the Extruder but I can't seem to find them, are they out there to download. The site that sold this printer said that the printer could print 1.73/3mm filament, when it arrived it only had a 3mm J-Head so I brought a 1.75mm J-Head to go on but I haven't all sorts of problems printer like the filment getting block up the inner of the J-Head and the direct gear slipping. Do people print successfully with the Extruder and 1.75 filament? Printer in question which I brought was this one [www.aliexpress.com] Extruder is this one [reprap.org] J-Head I brought was this one [www.aliexpress.com] My end thoughts is that the gear and tension system on this extruder just doesn't suit the 1.75 (PLA) Hence the questions Where can I get the STL files Do these Extruders work with 1.75 Ta https://reprap.org/forum/read.php?1,293775,293775#msg-293775 Sat, 07 Mar 2026 23:31:42 -0500 Phorum 5.2.23 https://reprap.org/forum/read.php?1,293775,294303#msg-294303 Re: K Extruders https://reprap.org/forum/read.php?1,293775,294303#msg-294303 lazzymonk General Tue, 14 Jan 2014 02:07:15 -0500 https://reprap.org/forum/read.php?1,293775,294252#msg-294252 Re: K Extruders https://reprap.org/forum/read.php?1,293775,294252#msg-294252
As for filament, which is the easier to print basic prints with ABS or PLA as I'm hearing a mix reports with both.

How is the Filament form China, as hit or miss as others ?]]> john230873 General Mon, 13 Jan 2014 21:58:46 -0500 https://reprap.org/forum/read.php?1,293775,294054#msg-294054 Re: K Extruders https://reprap.org/forum/read.php?1,293775,294054#msg-294054
There are some parts where cheapness is less of a problem, at least if you can print or obtain common off the shelf parts, but the extruder and hotend are probably not worth getting the cheapest.]]> bobc General Mon, 13 Jan 2014 14:06:05 -0500 https://reprap.org/forum/read.php?1,293775,294036#msg-294036 Re: K Extruders https://reprap.org/forum/read.php?1,293775,294036#msg-294036
Quote
john230873
Being new it is easy to get lost with this but in my hand does look like the one on this page [reprap.org] , the barrel is moulded but runs a PTFE liner down the middle. Taking the J-Head out of the equation for the moment, I thinking the K-extruder is more of the issue with 1.75 filament.

Lazzymonk why do you say it looks terribly, what should I be looking at here as in the pictures it seems ok, can you suggest a bitter one/place for the K-extruder setup?

There is nothing wrong with your extruder, many direct drive setups are used. Go buy a decent hotend, I don't see anything on alibab/aliexpress being worth any amount of time. Yes these hotends cost more than $25...


[www.hotends.com] - j-head

[www.lulzbot.com] - budaschnozzle

[e3d-online.com] - e3d

[store.makerstoolworks.com] - e3d

[3d-industries.myshopify.com] - jollygrimreaper hotends]]> tjb1 General Mon, 13 Jan 2014 13:30:14 -0500 https://reprap.org/forum/read.php?1,293775,294030#msg-294030 Re: K Extruders https://reprap.org/forum/read.php?1,293775,294030#msg-294030 reprap.org] , the barrel is moulded but runs a PTFE liner down the middle. Taking the J-Head out of the equation for the moment, I thinking the K-extruder is more of the issue with 1.75 filament.

Lazzymonk why do you say it looks terribly, what should I be looking at here as in the pictures it seems ok, can you suggest a bitter one/place for the K-extruder setup?]]> john230873 General Mon, 13 Jan 2014 13:21:39 -0500 https://reprap.org/forum/read.php?1,293775,293898#msg-293898 Re: K Extruders https://reprap.org/forum/read.php?1,293775,293898#msg-293898 lazzymonk General Mon, 13 Jan 2014 08:48:11 -0500 https://reprap.org/forum/read.php?1,293775,293891#msg-293891 Re: K Extruders https://reprap.org/forum/read.php?1,293775,293891#msg-293891
Your problem is almost guaranteed to be the cheap components you are buying. Tons of people use j-heads with 1.75 in PLA. I used a hotend very similar to a j-head with a bowden tube and direct drive extruder with very few issues.

Go buy a decent hotend not from some apartment in China.]]> tjb1 General Mon, 13 Jan 2014 08:22:28 -0500 https://reprap.org/forum/read.php?1,293775,293775#msg-293775 K Extruders https://reprap.org/forum/read.php?1,293775,293775#msg-293775 I was hoping to have the STL files for the Extruder but I can't seem to find them, are they out there to download.
The site that sold this printer said that the printer could print 1.73/3mm filament, when it arrived it only had a 3mm J-Head so I brought a 1.75mm J-Head to go on but I haven't all sorts of problems printer like the filment getting block up the inner of the J-Head and the direct gear slipping.

Do people print successfully with the Extruder and 1.75 filament?

Printer in question which I brought was this one [www.aliexpress.com]
Extruder is this one [reprap.org]
J-Head I brought was this one [www.aliexpress.com]

My end thoughts is that the gear and tension system on this extruder just doesn't suit the 1.75 (PLA)

Hence the questions
Where can I get the STL files
Do these Extruders work with 1.75

Ta]]> john230873 General Mon, 13 Jan 2014 00:51:51 -0500