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Official File parts/s/80441s03.dat
~Wheel  2 x 21 with Technic Pin Hole with Integral Tyre Rim - Spokes 1/8
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0 ~Wheel 2 x 21 with Technic Pin Hole with Integral Tyre Rim - Spokes 1/8 0 Name: s\80441s03.dat 0 Author: Chris Böhnke [KnightOfTarenta] 0 !LDRAW_ORG Subpart UPDATE 2025-06 0 !LICENSE Licensed under CC BY 4.0 : see CAreadme.txt 0 BFC CERTIFY CCW 0 !HISTORY 2025-01-25 [KnightOfTarenta] Based on s\24314s01.dat by Philippe Hurbain [Philo] 0 !HISTORY 2025-06-26 [OrionP] Official Update 2025-06
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0 // Front Side 1 16 0 0 -1.5 0 0 15.2 -15.2 0 0 0 1 0 48\1-8chrd.dat 4 16 0 -9 -1.5 9 -9 -1.5 10.748 -10.748 -1.5 0 -15.2 -1.5 0 // Half Spoke 1 16 0 -9 -1.5 -.885 0 0 0 .058 0 0 0 -.75 8\1-4cyls2.dat 1 16 0 -9 -1.5 .885 0 0 0 -6.142 0 0 0 -.75 8\1-4cyli.dat 1 16 0 -8.942 -1.5 .885 0 0 0 -1 -.058 0 0 -.75 8\1-4edge.dat 1 16 0 -15.142 -1.5 0 0 .885 0 -.858 0 .75 0 0 8\1-4cyls2.dat 1 16 0 -15.142 -1.5 .885 0 0 0 -1 -.858 0 0 -.75 8\1-4edge.dat 1 16 0 0 -1.5 1.17474 0 8.923 -8.923 0 1.17474 0 1 0 48\1-24edge.dat 1 16 0 0 -1.5 1.984 0 15.06996 -15.06996 0 1.984 0 1 0 48\1-24edge.dat 2 24 .885 -8.942 -1.5 .885 -15.142 -1.5 2 24 .885 -8.942 -1.5 1.175 -8.923 -1.5 2 24 1.984 -15.07 -1.5 .885 -15.142 -1.5 0 // Half Spoke 1 16 4.5 -7.794 -1.5 -.76643 -.029 0 -.4425 .05023 0 0 0 -.75 8\1-4cyls2.dat 1 16 4.5 -7.794 -1.5 .76643 -.029 0 .4425 .05023 0 0 0 -.75 8\1-4cyls2.dat 1 16 4.5 -7.794 -1.5 .76643 3.071 0 .4425 -5.31913 0 0 0 -.75 8\2-4cyli.dat 1 16 4.471 -7.744 -1.5 .76643 0 .029 .4425 -1 -.05023 0 0 -.75 8\2-4edge.dat 1 16 7.571 -13.113 -1.5 0 .429 .76643 0 -.74305 .4425 .75 0 0 8\1-4cyls2.dat 1 16 7.571 -13.113 -1.5 0 .429 -.76643 0 -.74305 -.4425 .75 0 0 8\1-4cyls2.dat 1 16 7.571 -13.113 -1.5 .76643 0 .429 .4425 -1 -.74305 0 0 -.75 8\2-4edge.dat 1 16 0 0 -1.5 5.47885 0 7.14017 -7.14017 0 5.47885 0 1 0 48\1-48edge.dat 1 16 0 0 -1.5 9.25317 0 12.05897 -12.05897 0 9.25317 0 1 0 48\1-48edge.dat 2 24 5.237 -7.301 -1.5 8.337 -12.671 -1.5 2 24 5.237 -7.301 -1.5 5.479 -7.14 -1.5 2 24 9.253 -12.059 -1.5 8.337 -12.671 -1.5 2 24 3.705 -8.186 -1.5 6.805 -13.556 -1.5 2 24 3.705 -8.186 -1.5 3.444 -8.315 -1.5 2 24 5.816 -14.043 -1.5 6.805 -13.556 -1.5 0 // Back Side 1 16 0 0 1.5 10.74807 0 -10.74807 -10.74807 0 -10.74807 0 -1 0 48\1-8chrd.dat 4 16 10.748 -10.748 1.5 9 -9 1.5 0 -9 1.5 0 -15.2 1.5 0 // Half Spoke 1 16 6.364 -6.364 1.5 .62579 -.04101 0 .62579 .04101 0 0 0 .75 8\1-4cyls2.dat 1 16 6.364 -6.364 1.5 -.62579 4.34307 0 -.62579 -4.34307 0 0 0 .75 8\1-4cyli.dat 1 16 6.323 -6.323 1.5 -.62579 .70711 .04101 -.62579 -.70711 -.04101 0 0 .75 8\1-4edge.dat 1 16 10.707 -10.707 1.5 0 .6067 -.62579 0 -.6067 -.62579 -.75 0 0 8\1-4cyls2.dat 1 16 10.707 -10.707 1.5 -.62579 .70711 .6067 -.62579 -.70711 -.6067 0 0 .75 8\1-4edge.dat 1 16 0 0 1.5 5.47887 0 -7.14021 -7.14021 0 -5.47887 0 -1 0 48\1-24edge.dat 1 16 0 0 1.5 9.25321 0 -12.05903 -12.05903 0 -9.25321 0 -1 0 48\1-24edge.dat 2 24 5.697 -6.949 1.5 10.081 -11.333 1.5 2 24 5.697 -6.949 1.5 5.479 -7.14 1.5 2 24 9.253 -12.059 1.5 10.081 -11.333 1.5 0 // Half Spoke 1 16 2.329 -8.693 1.5 .85485 -.01501 0 .22905 .05602 0 0 0 .75 8\1-4cyls2.dat 1 16 2.329 -8.693 1.5 -.85485 -.01501 0 -.22905 .05602 0 0 0 .75 8\1-4cyls2.dat 1 16 2.329 -8.693 1.5 -.85485 1.58968 0 -.22905 -5.93274 0 0 0 .75 8\2-4cyli.dat 1 16 2.314 -8.637 1.5 -.85485 .70711 .01501 -.22905 -.70711 -.05602 0 0 .75 8\2-4edge.dat 1 16 3.919 -14.626 1.5 0 .22207 -.85485 0 -.82877 -.22905 -.75 0 0 8\1-4cyls2.dat 1 16 3.919 -14.626 1.5 0 .22207 .85485 0 -.82877 .22905 -.75 0 0 8\1-4cyls2.dat 1 16 3.919 -14.626 1.5 -.85485 .70711 .22207 -.22905 -.70711 -.82877 0 0 .75 8\2-4edge.dat 1 16 0 0 1.5 1.17474 0 -8.92304 -8.92304 0 -1.17474 0 -1 0 48\1-48edge.dat 1 16 0 0 1.5 1.98401 0 -15.07003 -15.07003 0 -1.98401 0 -1 0 48\1-48edge.dat 2 24 1.46 -8.866 1.5 3.064 -14.855 1.5 2 24 1.46 -8.866 1.5 1.175 -8.923 1.5 2 24 1.984 -15.07 1.5 3.064 -14.855 1.5 2 24 3.169 -8.408 1.5 4.774 -14.397 1.5 2 24 3.169 -8.408 1.5 3.444 -8.315 1.5 2 24 5.817 -14.043 1.5 4.774 -14.397 1.5
Status:
Official Official
Unofficial parents
Part Events:
Archived Part Events:
Chris Böhnke [KnightOfTarenta]
Part Header Editor
initially submitted the part.
2025-01-31 13:41:22
*should be working again
Chris Böhnke [KnightOfTarenta]
Part Header Editor
submitted a new version of the part.
2025-02-01 19:17:09
*changed the Pinhole outer diameter from 9.25 LDU to 9.0 LDU
*changed pinhole prims from 48 to standard resolution
*replaced the 45 degree 1-4 chrds with 2 x 90 degree 1-8 chrds
*backside spokes offset angle changed from 15 degree to 45 degree
Chris Böhnke [KnightOfTarenta]
Part Header Editor
made the following comment.
2025-02-01 19:21:33
Please note:
The inner edge prims are still set to the 48 hi-res version. A 1-16 edge segment does not fit in between the spokes.
These do connect to the technic pin hole in the center, which is now a standard res cylinder. I am not sure if this is such a good idea.

I considered changing to a simple full circle edge prim here, but this might cause issues for the transparent version.
Magnus Forsberg [MagFors]
Part Library Admin
posted a vote of Hold.
2025-02-02 08:38:17
The outer end is protruding through the rim cone.
And the inner end need to reach the inner pin hole cylinder.
I think we need to have the hub outside in hi-res.
Chris Böhnke [KnightOfTarenta]
Part Header Editor
made the following comment.
2025-02-02 10:57:27
Regarding the inner cylinder:
Currently this set so that both end points of the spoke cylinder are on the center cylinder's circumference (creating a small intersection).
If I put this cylinder correctly tangential there, it creates a gap.
The correct adapter prim only exists for 4-4 cylinders, not 2-4 ones.
Is the gap really preferable in this situation?
Chris Böhnke [KnightOfTarenta]
Part Header Editor
submitted a new version of the part.
2025-02-02 12:19:26
*I realized I had a slight calculation error in the old one, where the spokes were meant to touch the ideal ring, but actually it should be the polygon ring, creating a collision. So the outer section should be fixed now. However the center vertex of each 1-4cyls2 still goes slightly through the cone. Is there a better prim available?
*inner section changed to the before mentioned tangential version. Not sure if this is the way to go. If this is the preferred version, the edge lines could be changed to a full circle, allowing the center cylinder to be standard resolution.
Chris Böhnke [KnightOfTarenta]
Part Header Editor
submitted a new version of the part.
2025-02-02 13:39:52
*cyls used
Rene Rechthaler [Blechtaler]
Part Header Editor
made the following comment.
2025-02-02 15:52:00
would it help to use a 2-4 cyls? if the hub has to be standard-res?
Chris Böhnke [KnightOfTarenta]
Part Header Editor
made the following comment.
2025-02-02 16:22:49
The way cyls/cyls2 is cut should make that not really an option I think.

I would help to get rid of 2 lines in the sub-file, but it wouldn't affect poly-count or anything else.

Also, since the gapy are now closed, keeping the 48 center cylinder sounds like the best solution. Otherwise the edge underneath the spokes could be seen in the transparent one.
Chris Böhnke [KnightOfTarenta]
Part Header Editor
made the following comment.
2025-02-02 16:24:04
Should read "It would help to get rid" and "gaps"
Chris Böhnke [KnightOfTarenta]
Part Header Editor
submitted a new version of the part.
2025-06-16 22:21:51
*reworked spokes, still not perfect, but should fit a bit better
*moved the chrds to the sub-file

Moving the quads to the sub-file causes other issues - either I would need to have the ndis on the reverse rotated 45 degree (rounding errors), use a far more complicated geometry to fit a tang prim there or have a new sub-file for the reverse. So no change there. Note that front and back are offset 45 degree.
Rene Rechthaler [Blechtaler]
Part Header Editor
made the following comment.
2025-06-16 22:33:06
why not include the rear spokes here? no need for rotating then.
looks like there is an additional edgeline after the 1-8, which would be overlapping in the main...
Chris Böhnke [KnightOfTarenta]
Part Header Editor
submitted a new version of the part.
2025-06-16 23:20:48
*Moved both sides to sub-file
*Moved quads to sub-file
*removed overlapping conds
Mark Kennedy [mkennedy]
Part Reviewer
posted a vote of Certify.
2025-06-17 04:34:27
Looks good.
Rene Rechthaler [Blechtaler]
Part Header Editor
made the following comment.
2025-06-17 05:04:01
Its better, but I still think the outside of the central hub should be normal res...
Takeshi Takahashi [RainbowDolphin]
Senior Part Reviewer
posted a vote of Certify.
2025-06-17 10:49:53
Orion Pobursky [OrionP]
Part Library Admin
posted a vote of Admin Review.
2025-06-17 14:49:21
Orion Pobursky [OrionP]
Part Library Admin
2025-06-26 01:28:23
Release 2025-06
Creative Commons Attribution License information

This part is copyright © Chris Böhnke
Licensed under CC BY 4.0

Edits:
LDraw.org Parts Tracker, Orion Pobursky,

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