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Informative Having a go at modelling a Class 20 inspired shell for a Rokuhan short Z chassis - Wish me luck
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Offline Big AL  
#1 Posted : 31 October 2020 11:51:15(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
Posts: 55
Location: Scotland, Glasgow
I bought one of these Rokuhan Shorty Z chassis as an experiment to see if I could make a Class 20 inspired bodyshell for it.

I stayed up way too long last night finishing the first incarnation...

https://imgur.com/a/skFs3xb
.
Obviously it is a bit fatter and shorter than a true scale Class 20. I intended it to have that Rokuhan Shorty Z aesthetic.

I am going to try and SLA print today. I am expecting a disaster. :)
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Offline Poor Skeleton  
#2 Posted : 31 October 2020 15:18:15(UTC)
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Poor Skeleton

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Joined: 09/10/2015(UTC)
Posts: 553
Location: England, Cambridge
Originally Posted by: Big AL Go to Quoted Post
I bought one of these Rokuhan Shorty Z chassis as an experiment to see if I could make a Class 20 inspired bodyshell for it.

I stayed up way too long last night finishing the first incarnation...

https://imgur.com/a/skFs3xb
.
Obviously it is a bit fatter and shorter than a true scale Class 20. I intended it to have that Rokuhan Shorty Z aesthetic.

I am going to try and SLA print today. I am expecting a disaster. :)



Looks great! You're obviously very skilled with 3D modelling! I've modelled and printed a few items for my own layout, but nothing to this standard or complexity!

Good luck with the print!


Chris
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Offline Big AL  
#3 Posted : 31 October 2020 15:41:24(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
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Location: Scotland, Glasgow
Thanks Chris, My CAD skills are balanced out by my poor printing and painting skills. :)

First print was a pancake on the print bed. Second print is underway.
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Offline Big AL  
#4 Posted : 31 October 2020 17:38:17(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
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It actually printed, really well.

https://imgur.com/a/0XE77hJ

I am printing another because my painting skills are worse than terrible.
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Offline Bahner  
#5 Posted : 01 November 2020 06:10:44(UTC)
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Bahner

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Joined: 18/11/2017(UTC)
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Originally Posted by: Big AL Go to Quoted Post
It actually printed, really well.

https://imgur.com/a/0XE77hJ

I am printing another because my painting skills are worse than terrible.


Nice job on this one! ThumpUp

Niedertafelbergendorf - N Scale, Era 1
Kleinhopfensee - Z Scale, Era 1/2
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Offline Big AL  
#6 Posted : 01 November 2020 12:01:06(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
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Location: Scotland, Glasgow
Painted by hand, not my best paint job and finally figured out how to embed images inline.

IMG_0465.JPEGIMG_0466.JPEG
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Offline Poor Skeleton  
#7 Posted : 01 November 2020 14:02:51(UTC)
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Poor Skeleton

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Joined: 09/10/2015(UTC)
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Originally Posted by: Big AL Go to Quoted Post
Painted by hand, not my best paint job and finally figured out how to embed images inline.

IMG_0465.JPEGIMG_0466.JPEG


That looks really good - and you are too modest about your painting abilities! If you need to see what really dreadful painting looks like, I can send some pictures of my own work! For this reason the windows, doors and other "fittings" of my 3D printed buildings were printed as separate items so I could paint them first before assembling everything together.

What printer are you using? It's a very clean print which not all of mine have been, though being mostly buildings I have tried to use that texture to enhance rather than detract from the final effect.

Cheers


Chris
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Offline kiwiAlan  
#8 Posted : 01 November 2020 19:29:02(UTC)
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kiwiAlan

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Originally Posted by: Big AL Go to Quoted Post
Painted by hand, not my best paint job and finally figured out how to embed images inline.


Now all it needs is a face on the end to be part of a Thomas collection BigGrin BigGrin BigGrin BigGrin BigGrin

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Offline Big AL  
#9 Posted : 01 November 2020 23:54:01(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
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Location: Scotland, Glasgow
Originally Posted by: Poor Skeleton Go to Quoted Post


What printer are you using? It's a very clean print which not all of mine have been, though being mostly buildings I have tried to use that texture to enhance rather than detract from the final effect.



Thanks Chris. This was printed on an Anycubic Photon with Anycubic brand grey. The surface details are mostly 0.2mm extrusions from the face of the model. I could not incise the surface detail as the shell is only 0.5mm for much of its length. The exception to that is the cab windows and doors are incised 0.5mm as I had a bit more "meat" to play with there.

What resin are you using? I have found it makes all the difference. The opaque resins produce finer detail than the transparent green goop due to it's tendency to scatter and bleed UV deep into the resin as you print.

If you look at the back of one of the photos you can see some doors printed and a yard office model. The window framing on the yard office is 0.1 wide and extruded from the face. The door height is 9mm on the yard office.

Over all I am pretty happy when all is said an done. I have a funky shunter for £24.95 + postage and a little bit of time. I never really built if with a layout in mind. I will use it as my "stunt" engine in the meantime.

I am happy to share the STL with anybody who ones to print one for themselves.
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Offline Big AL  
#10 Posted : 01 November 2020 23:55:46(UTC)
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Big AL

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Joined: 25/10/2020(UTC)
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Location: Scotland, Glasgow
Originally Posted by: kiwiAlan Go to Quoted Post

Now all it needs is a face on the end to be part of a Thomas collection BigGrin BigGrin BigGrin BigGrin BigGrin




Choo choo, I am a train!!! :D
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Offline kiwiAlan  
#11 Posted : 02 November 2020 13:26:21(UTC)
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kiwiAlan

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Joined: 23/07/2014(UTC)
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Originally Posted by: Big AL Go to Quoted Post
Originally Posted by: kiwiAlan Go to Quoted Post

Now all it needs is a face on the end to be part of a Thomas collection BigGrin BigGrin BigGrin BigGrin BigGrin




Choo choo, I am a train!!! :D


Well, I was thinking of Diesel. BigGrin
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Offline Poor Skeleton  
#12 Posted : 02 November 2020 21:07:58(UTC)
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Poor Skeleton

United Kingdom   
Joined: 09/10/2015(UTC)
Posts: 553
Location: England, Cambridge
Originally Posted by: Big AL;621525
Thanks Chris. This was printed on an Anycubic Photon with Anycubic brand grey. The surface details are mostly 0.2mm extrusions from the face of the model. I could not incise the surface detail as the shell is only 0.5mm for much of its length. The exception to that is the cab windows and doors are incised 0.5mm as I had a bit more "meat" to play with there.

What resin are you using? I have found it makes all the difference. The opaque resins produce finer detail than the transparent green goop due to it's tendency to scatter and bleed UV deep into the resin as you print.

If you look at the back of one of the photos you can see some doors printed and a yard office model. The window framing on the yard office is 0.1 wide and extruded from the face. The door height is 9mm on the yard office.

Over all I am pretty happy when all is said an done. I have a funky shunter for £24.95 + postage and a little bit of time. I never really built if with a layout in mind. I will use it as my "stunt" Go to Quoted Post


I'm afraid I take the easy way out and get a friend to print stuff for me. He has a couple of "filament" printers and a small SLA printer but, I'm afraid I don't know the details or which materials he uses. Good tip about using opaque resin, though. The items I have had done have been in transparent resin and I'm very happy with them, but good to know there's even better quality to be had if I need it.
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