HTA3D Single Extruder - optimized for flexible filament - Mk8 and V6

by HTA3D Dec 17, 2015
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Nice extruder but... bad accessories !

The part cooling fan bracket is too short, cools the hot end instead of the part itself, while the fan hith my right Z coupler when Z<=10mm.

The ABL sensor is HUGE.

The filament sensor works when it wants to, should have done a mechanical filament sensor variant.

Also the X axis endstop and chain holder is too flimsy, make it larger ! Like here: https://www.thingiverse.com/thing:3113314

HTA3D SE X axis endstop extended

Un extrusor excelente, desde luego. Tenía problemas de impresión con el ventilador de capa, pero tras aislar el bloque con lana de roca hay una diferencia increíble en las impresiones.
It works perfectly. You have to isolate your hotend with rockwool to use the layer fan, once you done this, it works very nice.

Funcionaria para una Anet A8¿?

No venía mal un soporte para BLtouch... :P

Buenas noches no tiene pieza imprimible para poder colocarle un sensor inductivo de calibrado automatico?? Un saludo

I love this extruder, using it on all my prusa I3 printers.

Thanks for comment, I'm glad you like it :)

Hi. What e/steps (extruder steps per mm) have you configured in Marlin?


You can start at 280-310 and then do this:


Hello, theres another fan duct for filament? This one cools my heatblock , and interrups the printing....


I sugest isolate your heatblock with that:

And also calibrate PID on marlin in order to get the best performance:


Me encanta como has resuelto el fan duct pero también me parece que queda alto. Aislando el bloque se eliminan los problemas de impresión pero creo que enfríaría mejor el filamento si estuviera unos 3 o 4mm más bajo. Además, si enfriara mejor, podríamos bajar de vueltas el fan y sería más silencioso.

Me pasa lo mismo que a @rodridagaz parece como si las medidas del fan duct fueran para un v5 en vez de un v6

Is possible to use with 3mm filament?

Hello, thanks for asking!, no, only for 1.75mm filament, I'm sorry...
Note that direct drive extruder works better with 1.75mm filament because of torque optimization, 3mm need much more torque.

How much infill percentage is the best to be used to print this in ABS?

Hello, thanks for asking! 30-40% and 1mm shell is enauht using a good quality filament.

Hi. Does it work? with a Nema 17 of 47mm long? I'm afraid it interferes with the frame (prusa steel)


You are right, a 48mm long stepper will be too big for that extruder, It is design with a 40mm stepper motor in order to have a moderate weight and strength more than enough to extrude.

Excellent Extruder! Working Flawlessly print after print!

Hi!, thanks for comment and share your made :)