> One thing to note is that EMC2 removes a fair amount of the complexity
> from 5-axis code generation, specifically tool offsets and the like.
> Once you have a correct kinematics module for your machine, the G-code
> becomes a 5-axis "TOV" - Tool Orientation Vector. The post doesn't have
> to calculate all the joint positions, it tells EMC2 to move the tool
> endpoint to a particular position, at a particular angle, and EMC2
> (through kinematics) figures out where the joints need to go. That
> calculation includes tool length and diameter offsets, so theoretically
> (and Stuart can tell you more about the reality of it), you can take a
> 5-axis job from one EMC2 machine to another EMC2 machine, and as long as
> the set of supported axes is the same (XYZ AB vs. XYZ BC, for instance),
> you shold be able to run that code, even with a different set of
> available tools.
>
> - Steve
>
Steve,
This deviates from the original subject a little bit.
dig :)
So far I have been unable to develop (or get developed) the
5 axis cutter diameter compensation. Some vague argument about the
corner rounding not allowing it.
suggestion
The answer is to disable the corner rounding during 5 axis
cutter diameter compensation. Then the cutter path compensation could
be generated without concern for the corner rounding (feature).
Also, I would like to be able to disable the corner rounding
(feature) for 3 axis machines and work.
Allow a choice between tool path programming and part
contour programming - for all machines. G code or .ini set.
Theoretically, 5 axis program portability is there. I have a LOT of
5 axis programs with tool lengths in them. I haven't tried any yet
(but I surely will). I should be able to adjust the tool length in the
tool table using the in program tool length and the actual tool
length. The important number it the distance from the tool tip to the
pivot point of the rotary axes. If I use a modified tool length in the
tool table that supplies EMC2 the actual length from the pivot point
to the tool tip then any 5 axis program will work.
(hopefully I said this in a logical fashion)
This should work with any machine that has 5 axis tool length
compensation. A program running on a fanuc control can be run in EMC2
if the machine limits will allow the machine to move through the
program.
EMC2 programs in fanuc
fidia programs in EMC2 - EMC2 programs in fidia
any gcode program in EMC2 - EMC2 programs in any control running gcode.
VERY FLEXIBLE
you may have to modify the prep sections g43 implementation / g54
... offsets (some machines use E) / tool change sections / maybe
other sections
the tool positions (XYZABCUVW) should be usable on any machine with 5
axis tool length compensation
Steve is correct when he says a lot of the complexity has been
removed (incorporated into the control). Many things can be done that
were previously only on high dollar machines and controls. 5 axis
cutter diameter comp would make EMC2 much more elite.
Stuart
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