Green out (4-20mA)
this is the very first prototype of extruder for geared stepper motor (reduction ratio 1:50)
Yes, it has metal gears and it’s very compact.
I’m going to test it, if you like or wish to test it just contact me
so Laszlo will reveal how he does such beautiful hobbing?
I was amazed by the great possibilities of configuration and control of the LCD display.
In addition to show all the standard parameters and the option to change the feed rate is the option to change on the fly acceleration, jerk, maximum speed, the STEP UNIT on the axes, change the temperature, the PID parameters and of course load files to be printed directly from the SD card.
From now on it will be a must on all printers
In this config i’ve used a simple LCD 20×4, a SDCard kit from grrf.de, and an encoder (EC11E15244B2)
Marlin configured with #define NEWPANEL
i’m testing the new nut with knurling and apart from the aesthetic factor nut is considerably lower thus improve the thermal behavior.
Also the thermal barrier is PEEK and hereafter will be only in PEEK.
on RepRap wiki: http://reprap.org/wiki/BHead
After testing different extruders with simple coupling between aluminum / brass and peek and I realized that often comes out some of the material due to the imperfect coupling.
I’ve also tried some PTFE tape but..
So I decided to switch to a coupling done by screw / nut and i’ve added some improvements such as groovemount (as JHead)
Moreover in this way makes it easier to replace the nozzle
I also reduced the diameter of the hot from 10mm to 8mm
Inside the Peek Themal barrier is inserted a small piece of PTFE tube
Right now I’m working on a solution for connecting a bowden
see you soon