Unofficial File parts/37493.dat
part image
File Header:
0 Train Front  6 x 10 x  7
0 Name: 37493.dat
0 Author: Jens Brühl [jb70]
0 !LDRAW_ORG Unofficial_Part
0 !LICENSE Redistributable under CCAL version 2.0 : see CAreadme.txt

0 BFC CERTIFY CCW

Status:
1 subfile isn't certified. (CCSN)
Size: 2458 bytes
Reviewers' certifications:
MMR1988=certify
Philo=certify
Required (unofficial) subfiles:
~Train Front 6 x 10 x 7 Half
Status: Needs admin review. (CCN)
Related (unofficial) subfiles:
(none)
File reviews and updates:
At Tue Nov 17 20:10:01 2020, the file was initially submitted.
Submitted by: jb70
Comments:
This my first part I have ever submitted to ldraw.orf. As you see not even the easiest one, but I did my best to learn the new techniques for part authoring.
Any comments from the reviewers are warmly welcome.

The part uses two subfiles
s\37493s01.dat
s\37493s02.dat

At Wed Nov 18 10:30:01 2020, the following review was posted:

Reviewer: mkennedy
Certification: novote
Comments:
Could make use of stud groups

At Wed Nov 18 13:30:01 2020, the following review was posted:

Reviewer: GeraldLasser
Certification: hold
Comments:
Hello Jens,

Good to see new Parts authors on the Tracker!

First part is always difficult, but we are here to help to get it done! And you have chosen a pretty challenging one! How did you generate the shape?

a) GENERAL SHAPE:
ALong those lines
2 4 40 80 -55 40 112.5098 -71.7907
2 4 40 112.5098 -71.7907 40 140.5112 -80.7367
2 4 40 140.5112 -80.7367 40 152 -84.5
I think the shape is not smooth enough. It looks like it is indented there, the real part looks to have smooth curve there, so these lines IMHO should move a bit forward

The bottom semi-circle which meets the plate
1 14 0 152 -40 1 0 0 0 1 0 0 0 1 18646.dat
in the model, has some additional divisions, make it match the 4-Prim segments

b) SMOOTH SURFACE
You are missing conditional lines on the curved surfaces, those need to be present. Use the Edger2 function of LDPE to have them generated for you.

c) you should use rectifier to merge triangles into quads, reduces the number of lines.


for the s01 file:
- user a 1-4 ndis and 1-4cylo here:
3 16 60 8 60 52 22 60 51.239 18.173 60
3 16 60 8 60 51.239 18.173 60 49.071 14.929 60
3 16 60 8 60 49.071 14.929 60 45.827 12.761 60
3 16 60 8 60 45.827 12.761 60 42 12 60


for the s02 file:
Here are some easily avoidable T-Junctions
4 16 42 12 56 56 8 56 24 8 56 24 12 56
4 16 44 4 56 24 4 56 24 8 56 44 8 56
4 16 24 4 56 24 4.5 35 24 12 38 24 12 56


That's it for the moment feel free to ask here or in the forum!


At Wed Nov 18 16:35:01 2020, the following review was posted:

Reviewer: MagFors
Certification: novote
Comments:
Very good! And welcome.

1 47 0 0 0 1 0 0 0 1 0 0 0 1 37493.dat
1 47 0 0 50 1 0 0 0 1 0 0 0 1 48336.dat
1 84 0 8.63975 11.028608 -1 0 0 0 0.906308 0.422618 0 0.422618 -0.906308 60470b.dat
1 84 0 15.890212 14.409554 1 0 0 0 0.906308 -0.422618 0 0.422618 0.906308 18973.dat
1 84 0 0 60 1 0 0 0 1 0 0 0 1 88930.dat
1 84 0 15.890212 14.409554 0 0 -1 -0.422618 0.906308 0 0.906308 0.422618 0 93273.dat
1 84 50 8 100 0 0 -1 0 1 0 1 0 0 60596.dat
1 84 0 152 -40 1 0 0 0 1 0 0 0 1 18646.dat
1 84 0 114 -92 1 0 0 0 0 -1 0 1 0 3023.dat

Is it correct that it can't rotate 25 degrees? There is a small collision between the windscreen and your body part if I rotate it 25 deg.
Why did you choose to make 2 subfiles? One inside, and one outside surface.

At Mon Nov 23 20:30:01 2020, a new version of the file was submitted.
Submitted by: jb70
Comments:
New changes as recommended by the reviewers:
- Use stud groups for the top
- rework and refinement on the shape
- added groove around the front lights
- merged two subfiles into one, so 37493s02.dat may be deleted.
- other changes see comments of subfile 37493s01.dat

@MagFors: The windscreen does not rotate exactly 25 degrees:
1 191 0 0 -80 1 0 0 0 1 0 0 0 1 37493.dat
1 27 0 -8 0 1 0 0 0 1 0 0 0 1 3022.dat
1 4 -30 -8 10 1 0 0 0 1 0 0 0 1 6141.dat
1 4 30 -8 10 1 0 0 0 1 0 0 0 1 6141.dat
1 0 0 0 -30 1 0 0 0 1 0 0 0 1 48336.dat
1 191 0 0 -20 1 0 0 0 1 0 0 0 1 15068.dat
1 191 0 -16 10 1 0 0 0 1 0 0 0 1 3069b.dat
1 272 30 -24 -10 1 0 0 0 1 0 0 0 1 50950.dat
1 272 -30 -24 -10 1 0 0 0 1 0 0 0 1 50950.dat
1 0 0 8.474 -69.028 -1 0 0 0 0.909 0.415 0 0.415 -0.909 60470b.dat
1 0 0 15.727 -65.723 0 0 -1 -0.414 0.907 0 0.907 0.414 0 93273.dat
1 40 0 15.727 -65.723 1 0 0 0 0.907 -0.414 0 0.414 0.907 18973.dat

I used this test setup to verify the positions with the real build:
1 191 0 0 0 1 0 0 0 1 0 0 0 1 37493.dat
1 47 0 -0.07 49.993 1 0 0 0 1 -0.003 0 0.003 1 48336.dat
1 0 0 10.808 11.933 -1 0 0 0 0.851 0.525 0 0.525 -0.851 60470b.dat
1 2 0 33.378 -9.388 0 0 -1 -0.525 0.851 0 0.851 0.525 0 3020.dat
1 72 0 92.732 -90.265 0 0 -1 -0.525 0.851 0 0.851 0.525 0 3030.dat

@GeraldLasser:
To create the shape I used some disc primitives (included, but commented out in the part file). I used a higher resolution disc primitive:
4 16 .0654 0 .9979 0 0 1 0 0 0 .1305 0 .9914
4 16 .1951 0 .9807 .1305 0 .9914 0 0 0 .2588 0 .9659
4 16 .3214 0 .9469 .2588 0 .9659 0 0 0 .3827 0 .9239
4 16 .4423 0 .8969 .3827 0 .9239 0 0 0 .5 0 .866
4 16 .5556 0 .8314 .5 0 .866 0 0 0 .6088 0 .7934
4 16 .6594 0 .7519 .6088 0 .7934 0 0 0 .7071 0 .7071
4 16 .7518 0 .6593 .7071 0 .7071 0 0 0 .7934 0 .6088
4 16 .8315 0 .5556 .7934 0 .6088 0 0 0 .866 0 .5
4 16 .8968 0 .4423 .866 0 .5 0 0 0 .9239 0 .3827
4 16 .947 0 .3215 .9239 0 .3827 0 0 0 .9659 0 .2588
4 16 .9808 0 .1951 .9659 0 .2588 0 0 0 .9914 0 .1305
4 16 .9978 0 .0654 .9914 0 .1305 0 0 0 1 0 0


I stretched and moved the disc primitives so that they best fit to the real shape,. I have build a test skeleton to verify the digital build with a real one:
1 72 0 0 -20 1 0 0 0 1 0 0 0 1 18646.dat
1 72 20 0 40 1 0 0 0 1 0 0 0 1 3036.dat
1 0 0 8 -20 0 0 1 0 1 0 -1 0 0 3832.dat
1 0 40 8 40 0 0 1 0 1 0 -1 0 0 3020.dat
0 STEP
1 4 0 0 -100 1 0 0 0 1 0 0 0 1 3022.dat
1 4 0 -24 -100 0 0 -1 0 1 0 1 0 0 3003.dat
1 4 0 -24 -20 -1 0 0 0 1 0 0 0 -1 3001.dat
1 4 0 -24 20 -1 0 0 0 1 0 0 0 -1 3001.dat
1 15 0 -48 -100 0 0 -1 0 1 0 1 0 0 3003.dat
1 15 0 -48 20 1 0 0 0 1 0 0 0 1 3001.dat
1 15 80 -48 40 0 0 -1 0 1 0 1 0 0 3001.dat
1 4 80 -24 40 0 0 -1 0 1 0 1 0 0 3001.dat
1 4 80 0 -10 1 0 0 0 1 0 0 0 1 85984.dat
1 4 40 -24 90 1 0 0 0 1 0 0 0 1 3009.dat
1 15 40 -48 90 1 0 0 0 1 0 0 0 1 3009.dat
1 15 0 -48 -20 1 0 0 0 1 0 0 0 1 3001.dat
0 STEP
1 4 0 -56 -100 1 0 0 0 1 0 0 0 1 3022.dat
1 15 0 -64 -30 -1 0 0 0 1 0 0 0 -1 3023.dat
1 4 -20 -72 10 0 0 1 0 1 0 -1 0 0 3002.dat
1 4 40 -72 90 1 0 0 0 1 0 0 0 1 3009.dat
1 4 80 -72 40 0 0 -1 0 1 0 1 0 0 3001.dat
1 15 0 -96 0 1 0 0 0 1 0 0 0 1 3001.dat
1 15 0 -96 60 0 0 1 0 1 0 -1 0 0 3001.dat
1 15 80 -96 60 0 0 1 0 1 0 -1 0 0 3001.dat
1 15 80 -80 10 1 0 0 0 1 0 0 0 1 3023.dat
1 4 80 -80 10 1 0 0 0 1 0 0 0 1 85984.dat
1 4 20 -72 10 0 0 1 0 1 0 -1 0 0 3002.dat
1 4 0 -56 -30 -1 0 0 0 1 0 0 0 -1 3710.dat
0 STEP
1 4 10 -120 20 1 0 0 0 1 0 0 0 1 3002.dat
1 15 0 -144 50 1 0 0 0 1 0 0 0 1 3023.dat
1 15 0 -144 90 1 0 0 0 1 0 0 0 1 3023.dat
1 4 80 -120 70 0 0 -1 0 1 0 1 0 0 3002.dat
1 4 0 -120 70 0 0 1 0 1 0 -1 0 0 3002.dat
1 15 10 -128 40 1 0 0 0 1 0 0 0 1 3021.dat
1 4 10 -136 30 1 0 0 0 1 0 0 0 1 3623.dat
1 15 0 -128 80 1 0 0 0 1 0 0 0 1 3022.dat
1 4 0 -136 70 0 0 1 0 1 0 -1 0 0 3021.dat
1 15 80 -144 90 -1 0 0 0 1 0 0 0 -1 3004.dat
1 4 80 -144 90 1 0 0 0 1 0 0 0 1 85984.dat
1 4 80 -104 30 1 0 0 0 1 0 0 0 1 3023.dat
1 15 80 -112 30 1 0 0 0 1 0 0 0 1 3069b.dat
1 15 80 -128 60 1 0 0 0 1 0 0 0 1 3068b.dat
0 STEP
1 191 0 -152 20 1 0 0 0 1 0 0 0 1 37493.dat
1 4 0 -38 -80 1 0 0 0 0 -1 0 1 0 3069b.dat
1 15 0 -38 -72 1 0 0 0 0 -1 0 1 0 3023.dat
0 STEP
1 15 0 -64 -90 0 0 1 0 1 0 -1 0 0 3021.dat
1 15 0 -80 -30 1 0 0 0 1 0 0 0 1 3023.dat
1 4 0 -72 -60 0 0 1 0 1 0 -1 0 0 3020.dat
1 4 0 -152 60 1 0 0 0 1 0 0 0 1 3022.dat


Many thankx so far!

Existing certification-votes were deleted.
At Mon Nov 23 21:15:01 2020, the following review was posted:

Reviewer: MMR1988
Certification: hold
Comments:
Well, this a great start at the parts tracker.
there are only minor things, that needs to get fixed.

This quad creates some bleedins with the triangular shaped areas:
4 16 16 152 -84 16 128 -84 -16 128 -84 -16 152 -84
As the center is doubled anyway actually, just split the big quad into smaller ones and fill the sides.

These face create an overlapping with one quarter of the two ndis prims next to them:
4 16 -11.5308 110.3044 -80 -12.588 104.341 -80 -11.305 104.086 -80 -10 110 -80
4 16 -12.588 104.341 -80 -11.5308 110.3044 -80 -15 105.34 -80 -13.827 104.761 -80
4 16 -16.088 106.066 -80 -15 105.34 -80 -11.5308 110.3044 -80 -12.8284 111.1716 -80
4 16 -16.088 106.066 -80 -12.8284 111.1716 -80 -17.934 107.912 -80 -17.071 106.929 -80
4 16 -18.66 109 -80 -17.934 107.912 -80 -12.8284 111.1716 -80 -13.6956 112.4692 -80
4 16 -19.659 111.412 -80 -19.239 110.173 -80 -18.66 109 -80 -13.6956 112.4692 -80
4 16 -13.6956 112.4692 -80 -14 114 -80 -19.914 112.695 -80 -19.659 111.412 -80
4 16 11.305 104.086 -80 12.588 104.341 -80 11.5308 110.3044 -80 10 110 -80
4 16 12.588 104.341 -80 13.827 104.761 -80 15 105.34 -80 11.5308 110.3044 -80
4 16 11.5308 110.3044 -80 15 105.34 -80 16.088 106.066 -80 12.8284 111.1716 -80
4 16 17.934 107.912 -80 12.8284 111.1716 -80 16.088 106.066 -80 17.071 106.929 -80
4 16 12.8284 111.1716 -80 17.934 107.912 -80 18.66 109 -80 13.6956 112.4692 -80
4 16 19.659 111.412 -80 13.6956 112.4692 -80 18.66 109 -80 19.239 110.173 -80
4 16 13.6956 112.4692 -80 19.659 111.412 -80 19.914 112.695 -80 14 114 -80

Just change them to get connected with outer points of the ndis.

You can move many more faces to the subpart. Just take everythink which is symetrical (except of the studs). So you have to add only quads in the centre to connect both the subparts.

I would like to see, condlines in the inside area as well, cause this will give a smoother rendering. (Most of the condlines can be stored in the subpart.)

At Tue Nov 24 18:20:02 2020, a new version of the file was submitted.
Submitted by: jb70
Comments:
New submit with the changes as suggested by MMR1988

Existing certification-votes were deleted.
At Tue Nov 24 21:30:02 2020, the following review was posted:

Reviewer: MMR1988
Certification: certify
No comments were posted with this review.

At Tue Dec 29 10:40:02 2020, the following review was posted:

Reviewer: Philo
Certification: certify
Comments:
Beautiful work!