On Thu, Mar 15, 2012 at 10:10 PM, Roger Holmquist <ro...@abcnc.se> wrote:
> One observation is that trajectory planning seem to be incomplete.

In what way?
I think the whole LinuxCNC-community could benefit from automated
interpreter+trajectory-control tests. These would be G-code programs
that are run, and the machine position from HAL would be recorded each
servo cycle.

Analysis of these position trace-files is better grounds for saying
this or that about trajectory-control than "I have a feeling"-type of
statements.

Also as there seems to be some alternative trajectory-control work in
the Arais Robot Technology github fork of LinuxCNC, and possibly some
old segmentqueue work somewhere (Taig?BDI?). If there was a set of
(complete?) G-code+trajectory tests available then one could evaluate
the correctness and "goodness" of these alternative
trajectory-controllers.

> There is also a need to find reliable HW for machine-interfacing.

The wiki has a list of hardware options for I/O:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?LinuxCNC_Supported_Hardware

AW

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