The Modelers Thread

[gregj410]

Beginning of an On30 Caboose I’m building from Silver City models.

Resin?

Yes. Looks like a home job 3D print if I had to guess. I find the plastic to be cheap and rather fragile. I don’t know much about 3D printing but I would imagine like anything else, there are really good mediums to work with and not so good. I have limited experience with this stuff but if I had to guess it’s not very good.

[gregj410]

That color reminds me of Vane Jones' ICC modular carside panels and ends for (mostly) interurbans.

It’s True color B&M Maroon very heavily thinned and applied with an airbrush.

[healey36]

The local public library has a tech-center that has 3D printers one can use. You have to take a 30-minute training session first, but the you can use their gear. I bought some print files, so in a month or two I plan to go in there and give it a whirl.

[Rufus T. Firefly]

Beginning of an On30 Caboose I’m building from Silver City models.

Resin?

Yes. Looks like a home job 3D print if I had to guess. I find the plastic to be cheap and rather fragile. I don’t know much about 3D printing but I would imagine like anything else, there are really good mediums to work with and not so good. I have limited experience with this stuff but if I had to guess it’s not very good.

I was thinking it might just be cast resin, not printed resin. I'd only use the printed resin to make casting masters and then cast in resin.

[gregj410]

Resin?

Yes. Looks like a home job 3D print if I had to guess. I find the plastic to be cheap and rather fragile. I don’t know much about 3D printing but I would imagine like anything else, there are really good mediums to work with and not so good. I have limited experience with this stuff but if I had to guess it’s not very good.

I was thinking it might just be cast resin, not printed resin. I'd only use the printed resin to make casting masters and then cast in resin.

Not completely sure I know the difference. If I had to describe it I’d say it’s slightly brittle with a limited amount of flexibility. The floor seemed more like a resin than the walls. I would say it was more of a resin, much more rigid.

[Rufus T. Firefly]

Yes. Looks like a home job 3D print if I had to guess. I find the plastic to be cheap and rather fragile. I don’t know much about 3D printing but I would imagine like anything else, there are really good mediums to work with and not so good. I have limited experience with this stuff but if I had to guess it’s not very good.

I was thinking it might just be cast resin, not printed resin. I'd only use the printed resin to make casting masters and then cast in resin.

Not completely sure I know the difference. If I had to describe it I’d say it’s slightly brittle with a limited amount of flexibility. The floor seemed more like a resin than the walls. I would say it was more of a resin, much more rigid.

That brittle feeling - that's what I've noticed in 3D printed resin.

[robert.]

Is it difficult to paint 3d printed stuff?

[gregj410]

Is it difficult to paint 3d printed stuff?

I washed the parts with soap and water then airbrushed normally. I cut the paint with acetone and didn’t seem to have any bonding issues.

[gregj410]

This is the potential problem I see with home job 3-D prints. I picked this piece up at the show. A random guy was giving out parts I suppose to show what can be done with a 3-D printer. You can clearly see in the photos how badly this frame is warped. I don’t know what causes it. Possibly the plastic getting too hot, or maybe cooling too quickly? Is there heat generated in the process of 3-D printing? Probably questions that should be answered before you assume any 3-D print is going to be a high-quality piece.



private album on facebook

[healey36]

I've noticed this with the small printed ship models, although those seem to warp over time (might be perfectly straight when I receive them, but months later when I finally get around to painting there sometimes is a bit of bow-to-stern warpage). Most are printed in clear/translucent resin which tends to cloud with the passage of time. I don't notice that the material becomes brittle, but that's a concern. When you use them for gaming, they get handled quite a bit. Basing them tends to cut down on handling-damage.

[Rufus T. Firefly]

So, backed up and started doing an interior....



Roof fits down into the body a good bit so I had to cut off the doors, etc.

[healey36]

Looking good...nice job on the wainscoting.

[Rufus T. Firefly]

Looking good...nice job on the wainscoting.

Thanks. Now it's getting everything else in there,

[Rufus T. Firefly]

And, I think this might be done now...

[HONDO74]

You need a see thru roof on that one so we can admire all that interesting detail.