G-code planes

	A	B	C	D	E	F	G	H	I	J	K
1	Tentative proposal for extra planes in G-code
2
3	LinuxCNC currently supports planes G17 (XY) G18 (ZX) G19 (YZ) and G17.1(UV) G18.1(WU) G19(VW)
4	Currently arcs are only supported in G17, G18 and G19
5	This table fills the remaining G-code space attempting to be consistent with this, where possible
6	The logic is based on the allocation of arc-centre offsets where I = XU(A), J = YV(B) K = ZW(C)
7	I don't know if the standard defintition of the ZX plane (rather than the XZ plane) gives a sense of direction to arcs
8	In the table I have not made that differentiation
9	There are not enough G-codes to cover every eventuality, so the XU, YV and ZW planes got priority on the 1x.9 codes.
10	These three can not use IJK arcs, only R-format.
11
12			I	J	K	I	J	K	I	J	K
13			X	Y	Z	A	B	C	U	V	W
14	I	X		17	18		17.5	18.5	17.9	17.2	18.2
15	J	Y			19	17.6		19.5	17.3	19.9	19.2
16	K	Z				18.6	19.6		18.3	19.3	18.9
17	I	A					17.4	18.4		17.8	18.8
18	J	B						19.4	17.7		19.8
19	K	C							18.7	19.7
20	I	U								17.1	18.1
21	J	V									19.1
22	K	W
23
24
25			17x	IJ
26			18x	IK
27			19x	JK
28			R-Format only?
29
30	With the conventional ordering for ZX WU etc
31			I	J	K	I	J	K	I	J	K
32			X	Y	Z	A	B	C	U	V	W
33	I	X		17			17.5		17.9	17.2
34	J	Y			19	17.6		19.5	17.3	19.9	19.2
35	K	Z	18			18.6	19.6		18.3	19.3	18.9
36	I	A					17.4			17.8
37	J	B						19.4	17.7		19.8
38	K	C	18.5			18.4			18.7	19.7
39	I	U								17.1
40	J	V									19.1
41	K	W	18.2			18.8			18.1
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