Same color overlapping legal?

[Philippe Hurbain]

But ok, if you prefer poorer quality, I'll keep my better but overlapping version in my private library and submit an egdier for the official.

Best of both worlds: low poly count (except for the 8 extra vertices introduced by the two ndis), smooth curves and no overlap:

Code:

0 Brick  1 x  1 with Blue Bold "0" Pattern
0 Name: 3005pv0-2.dat
0 Author: Tore Eriksson [Tore_Eriksson]
0 Unofficial LDraw Part

0 BFC CERTIFY CCW

1 16  0 0 0  1 0 0  0 1 0  0 0 1  s\3005s01.dat

1 16 0 13 -10 5.5 0 0 0 0 7 0 1 0 4-4ndis.dat
1 16 0 13 -10 2.3 0 0 0 0 4 0 1 0 4-4disc.dat
1 1 0 13 -10 2.3 0 0 0 0 4 0 1 0 4-4ndis.dat
1 1 0 13 -10 3.88909 0 3.88909 -4.94975 0 4.94975 0 1 0 1-4chrd.dat
1 1 0 13 -10 -3.88909 0 3.88909 4.94975 0 4.94975 0 1 0 1-4chrd.dat
1 1 0 13 -10 3.88909 0 -3.88909 -4.94975 0 -4.94975 0 1 0 1-4chrd.dat
1 1 0 13 -10 -3.88909 0 -3.88909 4.94975 0 -4.94975 0 1 0 1-4chrd.dat
4 16 -10 0 -10 -10 24 -10 -5.5 20 -10 -5.5 6 -10
4 16 -10 24 -10 10 24 -10 5.5 20 -10 -5.5 20 -10
4 16 10 24 -10 10 0 -10 5.5 6 -10 5.5 20 -10
4 16 10 0 -10 -10 0 -10 -5.5 6 -10 5.5 6 -10
4 1 -3.8891 8.0503 -10 -2.3 9 -10 2.3 9 -10 3.889 8.0503 -10
4 1 3.889 8.0503 -10 2.3 9 -10 2.3 17 -10 3.889 17.9497 -10
4 1 -3.8891 17.9497 -10 3.889 17.9497 -10 2.3 17 -10 -2.3 17 -10
4 1 -3.8891 8.0503 -10 -3.8891 17.9497 -10 -2.3 17 -10 -2.3 9 -10

1-4chrd (or 1-8chrd if you need more leeway) is a powerful tool!

Note that here the ring is thick enough so that this simpler solution also works:

Code:

0 Brick  1 x  1 with Blue Bold "0" Pattern
0 Name: 3005pv0.dat
0 Author: Tore Eriksson [Tore_Eriksson]
0 Unofficial LDraw Part

0 BFC CERTIFY CCW

1 16  0 0 0  1 0 0  0 1 0  0 0 1  s\3005s01.dat

1 16  0 13 -10  5.5 0 0  0 0 7  0 1 0  4-4ndis.dat
1 16  0 13 -10  2.3 0 0  0 0 4  0 1 0  4-4disc.dat
1 1 0 13 -10 2.3 0 0 0 0 4 0 1 0 4-4ndis.dat
1 1  0 13 -10  5.5 0 0  0 0 7  0 1 0  1-4chrd.dat
1 1  0 13 -10  -5.5 0 0  0 0 7  0 1 0  1-4chrd.dat
1 1  0 13 -10  5.5 0 0  0 0 -7  0 1 0  1-4chrd.dat
1 1  0 13 -10  -5.5 0 0  0 0 -7  0 1 0  1-4chrd.dat
4 16  -10 0 -10  -10 24 -10  -5.5 20 -10  -5.5 6 -10
4 16  -10 24 -10  10 24 -10  5.5 20 -10  -5.5 20 -10
4 16  10 24 -10  10 0 -10  5.5 6 -10  5.5 20 -10
4 16  10 0 -10  -10 0 -10  -5.5 6 -10  5.5 6 -10
0
3 1 -2.3 9 -10 0 6 -10 -5.5 13 -10
3 1 -2.3 17 -10 -5.5 13 -10 0 20 -10
3 1 2.3 17 -10 0 20 -10 5.5 13 -10
3 1 2.3 9 -10 5.5 13 -10 0 6 -10
3 1 -2.3 9 -10 2.3 9 -10 0 6 -10
3 1 5.5 13 -10 2.3 9 -10 2.3 17 -10
3 1 -2.3 17 -10 0 20 -10 2.3 17 -10
3 1 -5.5 13 -10 -2.3 17 -10 -2.3 9 -10