Jon Elson wrote on 28/11/2007 04:05:
I think the above quoted text should read Only one offset word
is required. You definitely can have two. I think with the
in-plane only arcs that EMC does, you can't have 3. Some
controls allow arcs in arbitrary planes, and you can have an arc
move
The interpreter manual says that, in a center format arc move (G2 or
G3), only one offset word (I, J, or K, whichever are appropriate to the
selected plane). Assuming for example that the XY plane is selected, and
only I is specified in a center format arc move block, what Y axis
offset value (J)
Hi Matt,
I, J and K are not modal as far as I can tell. I get bitten by this
one every-once-in-awhile.
Dave
On Nov 27, 2007, at 10:58 AM, Matthew Glenn Shaver wrote:
The interpreter manual says that, in a center format arc move (G2 or
G3), only one offset word (I, J, or K, whichever are
I wasn't quite wordy enough.
A proper
G3(2) XnnnYnnnInnnJnnn
G3XnnnYnnn
will get you a missing I,J,K error message
D
On Nov 27, 2007, at 11:27 AM, Dave Engvall wrote:
Hi Matt,
I, J and K are not modal as far as I can tell. I get bitten by this
one every-once-in-awhile.
Dave
On Nov 27,
I believe you don't need the J. All you need are two points on the
circle and a line known to contain the center. Take the two points and
draw a line through them. Draw a perpendicular line through the
midpoint. Where your I line intersects the perpendicular line is your
radius center. Now that
I can see now that the documentation was unclear about this.
I am revising it to add the sentence marked +:
I and J are the offsets from the current location (in the X and Y directions,
respectively) of the center of the circle.
I and J are optional except that at least one of the two must
Yep! This is what I suspected, but I had to be sure...
Thanks a lot for this help! Dave Engvall did some experiments as well
and came to the same conclusion.
Matt
On Tue, 2007-11-27 at 15:40 -0600, Jeff Epler wrote:
I can see now that the documentation was unclear about this.
I am revising it
On Tue, 2007-11-27 at 13:28 -0800, Kirk Wallace wrote:
I believe you don't need the J. All you need are two points on the
circle and a line known to contain the center. Take the two points and
draw a line through them. Draw a perpendicular line through the
midpoint. Where your I line
Hi all,
On Nov 27, 2007, at 4:39 PM, Matthew Glenn Shaver wrote:
On Tue, 2007-11-27 at 13:28 -0800, Kirk Wallace wrote:
I believe you don't need the J. All you need are two points on the
circle and a line known to contain the center. Take the two points
and
draw a line through them. Draw
Matthew Glenn Shaver wrote:
The interpreter manual says that, in a center format arc move (G2 or
G3), only one offset word (I, J, or K, whichever are appropriate to the
selected plane). Assuming for example that the XY plane is selected, and
only I is specified in a center format arc move
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