I've 3D printed three small caves. 

Open the lox file in Therion's Loch viewer. Export to a vtk file. 
I then opened the vtk file in ParaView and used ParaView to export it to a stl file which I 3D printed. 

Results are varied. An issue I came across is when two larger areas are linked through a squeeze. Sometimes the squeeze would not be large enough to print and it would print like a gap between the two sections. 

The same often happens between two scraps. Where the scraps connect, the 3D printer would not always print them together. They looked like they were together, but would separate when the support structures of the model were taken off. 

I've had issues with holes in the model, and then it cannot print. 

Most of the above I've been able to automatically fix with Meshmixer. Meshmixer allows an "analysis" and "inspector" that is suppose to find holes and weak points and can then automatically repair them. This sometimes fixes issues and sometimes doesn't. 

Steven

On 31 January 2018 at 13:00, <therion-request@speleo.sk> wrote:
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Today's Topics:

   1. 3D output file for printing (franck TUOT)
   2. Re: 3D output file for printing (dennis mitchell)
   3. Re: 3D output file for printing (Philippe Vernant)
   4. Re: 3D output file for printing (Martin Sluka)
   5. Re: 3D output file for printing (Benedikt Hallinger)


----------------------------------------------------------------------

Message: 1
Date: Tue, 30 Jan 2018 21:38:46 -0800
From: franck TUOT <franck.tuot@gmail.com>
To: List for Therion users <therion@speleo.sk>
Subject: [Therion] 3D output file for printing
Message-ID: <63C87A9F-7FE9-4CAC-98CD-35E3DFF17220@gmail.com>
Content-Type: text/plain; charset=utf-8

Hello,

I was wondering if someone already tried to print some caves in 3D, using a 3D printer.
Any input about how to get a .STL .OBJ .AMF or .3MF (which I know are 3D format for printer).
If someone did a printing, any issue / success to share ?
Like I guess any small narrow passage will be hard to print if the final print put some kind of pressure on it.
Everything will depend of the scale obviously.

Anyway, maybe it’s just a dream but I thought it’ll be possible to do such a thing those days : )
Have a good evening everybody,

Franck Tuot

------------------------------

Message: 2
Date: Tue, 30 Jan 2018 21:41:48 -0800
From: dennis mitchell <denmit81@gmail.com>
To: List for Therion users <therion@speleo.sk>
Subject: Re: [Therion] 3D output file for printing
Message-ID:
        <CAFSDKuMtvR5YJT3W=Hoe79j7c42FtEn6+LAYjLE6_uXwvgjwfg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

I used a mesh program to convert the therion 3d output to the .obj format.
Worked to view in 3d with a Google cardboard viewer.

On Jan 30, 2018 9:39 PM, "franck TUOT via Therion" <therion@speleo.sk>
wrote:

> Hello,
>
> I was wondering if someone already tried to print some caves in 3D, using
> a 3D printer.
> Any input about how to get a .STL .OBJ .AMF or .3MF (which I know are 3D
> format for printer).
> If someone did a printing, any issue / success to share ?
> Like I guess any small narrow passage will be hard to print if the final
> print put some kind of pressure on it.
> Everything will depend of the scale obviously.
>
> Anyway, maybe it’s just a dream but I thought it’ll be possible to do such
> a thing those days : )
> Have a good evening everybody,
>
> Franck Tuot
> _______________________________________________
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion
>
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------------------------------

Message: 3
Date: Wed, 31 Jan 2018 08:08:16 +0100
From: Philippe Vernant <phil.vernant@gmail.com>
To: List for Therion users <therion@speleo.sk>
Subject: Re: [Therion] 3D output file for printing
Message-ID: <E8BE1D34-3ADD-4B7B-83D4-BA232C31A49A@gmail.com>
Content-Type: text/plain; charset=utf-8

Hi Franck,

I exported a .dxf file, and the guy used it to convert it for printing. If you can get a two tone color printing that would be the best since the printer has to print a support for the cave parts that are not at the lowest altitude (usually most of it and the support is larger than the cave). The best would be to use a material that will be removed (there is something that can be dissolved I think), so you would keep only the 3D print of the cave.

Phil


> On 31 Jan 2018, at 6:38 AM, franck TUOT via Therion <therion@speleo.sk> wrote:
>
> Hello,
>
> I was wondering if someone already tried to print some caves in 3D, using a 3D printer.
> Any input about how to get a .STL .OBJ .AMF or .3MF (which I know are 3D format for printer).
> If someone did a printing, any issue / success to share ?
> Like I guess any small narrow passage will be hard to print if the final print put some kind of pressure on it.
> Everything will depend of the scale obviously.
>
> Anyway, maybe it’s just a dream but I thought it’ll be possible to do such a thing those days : )
> Have a good evening everybody,
>
> Franck Tuot
> _______________________________________________
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion



------------------------------

Message: 4
Date: Wed, 31 Jan 2018 08:20:10 +0100
From: Martin Sluka <martinsluka@mac.com>
To: List for Therion users <therion@speleo.sk>
Subject: Re: [Therion] 3D output file for printing
Message-ID: <F2A731AD-F398-486C-BDA1-CDD8BA7596A0@mac.com>
Content-Type: text/plain; charset=utf-8

Therion’s Loch viewer is able to export VTK file, which is compatible with several 3D modeling programs and you may convert it to format for 3D printing.

Martin s.

> 31. 1. 2018 v 6:38, franck TUOT via Therion <therion@speleo.sk>:
>
> Hello,
>
> I was wondering if someone already tried to print some caves in 3D, using a 3D printer.
> Any input about how to get a .STL .OBJ .AMF or .3MF (which I know are 3D format for printer).
> If someone did a printing, any issue / success to share ?
> Like I guess any small narrow passage will be hard to print if the final print put some kind of pressure on it.
> Everything will depend of the scale obviously.
>
> Anyway, maybe it’s just a dream but I thought it’ll be possible to do such a thing those days : )
> Have a good evening everybody,
>
> Franck Tuot
> _______________________________________________
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion



------------------------------

Message: 5
Date: Wed, 31 Jan 2018 11:53:23 +0200
From: Benedikt Hallinger <beni@hallinger.org>
To: <therion@speleo.sk>
Subject: Re: [Therion] 3D output file for printing
Message-ID: <1f411fafe37c87babec6ea3f06dae4da@hallinger.org>
Content-Type: text/plain; charset=UTF-8; format=flowed

Another option would be to engrave it into a glass block using laser. Has
someone already done this?

Am 2018-01-31 9:20, schrieb Martin Sluka via Therion:
> Therion’s Loch viewer is able to export VTK file, which is compatible with
> several 3D modeling programs and you may convert it to format for 3D
> printing.
>
> Martin s.
>
>> 31. 1. 2018 v 6:38, franck TUOT via Therion <therion@speleo.sk>:
>>
>> Hello,
>>
>> I was wondering if someone already tried to print some caves in 3D, using
>> a 3D printer.
>> Any input about how to get a .STL .OBJ .AMF or .3MF (which I know are 3D
>> format for printer).
>> If someone did a printing, any issue / success to share ?
>> Like I guess any small narrow passage will be hard to print if the final
>> print put some kind of pressure on it.
>> Everything will depend of the scale obviously.
>>
>> Anyway, maybe it’s just a dream but I thought it’ll be possible to do
>> such a thing those days : )
>> Have a good evening everybody,
>>
>> Franck Tuot
>> _______________________________________________
>> Therion mailing list
>> Therion@speleo.sk
>> https://mailman.speleo.sk/listinfo/therion
>
> _______________________________________________
> Therion mailing list
> Therion@speleo.sk
> https://mailman.speleo.sk/listinfo/therion



------------------------------

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