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Discussion Starter #1
Hi folks

I realise that this topic has probably been raised before, but who here does 3D printing of buildings? And where would I find printable files.
I’m looking at getting one, so long as I don’t have to do too much, with so much on the go.

Thanks in advance


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I've been looking at printing figures (people, animals, etc) but there's not many models available in HO scale. Of course the great thing about this hobby is it's very easy to change the scale of an object before you print it.

A great source for models is in 28mm minis (used a lot for D&D type gaming, I think?). If anyone else goes down this path, just be aware that 70% is the magic scale number you're looking for. Take a 28mm figure and scale it down to 70%, and you'll be within a decimal point of the size needed for HO.

Actually *printing* those models is something else entirely. At HO scale a standing person is only about 15mm tall, so you need pretty fine detail. I'm going to be working with a 0.2mm nozzle and 0.04mm layer heights. Initial testing showed that even a slight bump in the belt can destroy a whole head. Next time I try it I'm going to slow the print speed way down. I'm hoping to get my prints good enough to see facial features.

As for printing buildings, I do have one link saved that might provide a search point for you: https://www.thingiverse.com/thing:2981217
This is just a flat print of a stone wall that you could cut out for models, and I wouldn't be surprised if there were other similar textures to be found.
 

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When I designed my N scale rolling stock i kept my printers limitations in mind and i now have a whole fleet of 3d printed flat cars and gondolas. Theyre not based on any particular drawings, but they look great and it shows how 3d printers can be used in the hobby. As seen in the pictures below, the switcher in the picture is a bachmann, and the brown flat car is one i designed and printed, then painted and added a wood bed to.
 

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Just getting my feet wet with printing, but I have obtained figures, buildings, and other things I am almost ready to try. Problem is now that I am getting pretty decent with it, wife keeps coming up with things for me to print for her. I told her, us time for a second printer...

But yes, thingiverse is a great source..


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Discussion Starter #8
Thanks for the help guys. Didn’t realise the cost of the plans was so expensive, but will see what I can do


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while trying to print HO scale figures probable exceeds my printers capability, I know painting them exceeds my capability!
 

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while trying to print HO scale figures probable exceeds my printers capability, I know painting them exceeds my capability!
You might be surprised at both. I have successfully printed HO scale figures with an Anycubic Photon SLA printer. The hard part is getting s satisfactory 3D model.

And painting? Well, practice makes perfect, as they say. Of course, I've had a lot of practice, having been painting miniatures since I was about 10 years old.
 

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If we could all afford SLA printers then this wouldn't be much of a problem. :)

I tested out a Cura profile last night that was made for my printer with the goal of printing mini figures. Came out a lot better and gives me a better starting point to work from. The biggest problem I'm having now is that it's not honoring the minimum layer time settings, so when it gets to the head the neck is still soft and the head gets pushed around by the nozzle, resulting in a Picasso. I'll be playing with that tonight, but I don't think I will be able to get enough detail to see facial features (or at least a nose).
 

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If we could all afford SLA printers then this wouldn't be much of a problem. :)

I tested out a Cura profile last night that was made for my printer with the goal of printing mini figures. Came out a lot better and gives me a better starting point to work from. The biggest problem I'm having now is that it's not honoring the minimum layer time settings, so when it gets to the head the neck is still soft and the head gets pushed around by the nozzle, resulting in a Picasso. I'll be playing with that tonight, but I don't think I will be able to get enough detail to see facial features (or at least a nose).
If you can afford a filament printer, you can afford the Photon. They cost about $500.
 

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Er... prices have come down a lot. My printer cost $250, and that was the upgraded version. The regular model is selling for $179. There are several manufacturers selling for under $300 now.
 

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Point is that $500 is a far cry from several thousand dollars that they used to cost. That can be within the reach of most people in the hobby.

Cleaning isn't nearly the hassle that it's made out to be. Keep a container of rubbing alcohol handy, swish your finished print in that for 30 seconds, then into a water bath for 30 seconds. Then nip off all your supports and clean the model more thoroughly in the alcohol bath using an old toothbrush, and rinse again. Then cure it under a UV lamp (or put it outside in the sun). It takes maybe 5 extra minutes. Any resin that ends up where you don't want it is easily cleaned up with alcohol.

For me, it's worth it not to have to deal with the layer lines left by FDM printers.
 
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