Multiextruder control

[rbisping]

Ok. I've been going through the firmware and see under config.h that
there is a rs485_address with a default value of 0. From looking at
the sang firmware it at least implies if I change this value the
different extruders will be recognized seperately.
My two questions are if repg will recognize them and if i
mseeing rhat right

[rbisping]

well, i was able to verify that repg will create multiple extruder
tabs now i just need to know what the name of the extruder number is
in the configuration file. it see's board 0 but doesnt seem to be
associating board 1 with the second extruder field.

[Adam Mayer]

Hi,

I'll poke around the firmware and see if I can support this when we
get back to New York on Tuesday. I'm currently in the process of
doing a firmware rewrite, so support may be a little weak until that's
finished.

Thanks,
-a

[rbisping]

Thanx, any information you can give would be appreciated. from my own
looking into the firmware and repg it appears that support for it is
at least potentially there i just cant seem to get responses and im
not
sure if its because I'm using the wrong syntax or something else. also
i came up against another block to implementing it. namely that the
makerbot stepper motors are too underpowered for a direct drive
extruder so I'm going to have to make a geared version until i can
acquire stronger nema 17 steppers.

On Jan 11, 12:16 am, Adam Mayer <pho...@gmail.com> wrote:
> Hi,
>
> I'll poke around the firmware and see if I can support this when we
> get back to New York on Tuesday.  I'm currently in the process of
> doing a firmware rewrite, so support may be a little weak until that's
> finished.
>
> Thanks,
> -a
>

[Adam Mayer]

Yeah, there's no way the nema 17s can evolve enough pressure to
extrude ABS without a bit of gearing. The old stepper-driven reprap
extruder used a lead screw as a worm gear to push the ABS, iirc.

-a

[rbisping]

Mendel is set up with a direct drive stepper. now i just have to find
a us source for it

On Jan 11, 8:23 am, Adam Mayer <pho...@gmail.com> wrote:
> Yeah, there's no way the nema 17s can evolve enough pressure to
> extrude ABS without a bit of gearing.  The old stepper-driven reprap
> extruder used a lead screw as a worm gear to push the ABS, iirc.
>
> -a
>