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Re: 3D printing for kids: modelling objects with Minetest

Topywo wrote:[...]time_speed = 0


Awesome, thanks!
by spin
Fri Aug 22, 2014 13:17
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3D printing for kids: modelling objects with Minetest

In the testing I see that day/night cycle restricts visibility, and additional time has to be spent to set up lighting, and this makes classes time spent less effective.

Is there a way to remove or limit the night/day cycle?
by spin
Fri Aug 22, 2014 12:30
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: [MOD] Minetest 3D Print 0.1 [M3D]

Awesome! Keeping an eye on this thread :)
by spin
Mon Aug 18, 2014 17:46
 
Forum: WIP Mods
Topic: [MOD] Minetest 3D Print 0.1 [M3D]
Replies: 7
Views: 2525

Re: 3D printing for kids: modelling objects with Minetest

I tried using sfan5's mt2obj converter[...]How exactly do you use the script? I do it like so: -place your mts map file exported from Minetest with Worldedit (check commands) in mt2obj script's folder -open Windows command line -go to the directory you have the script in (using cd to change directo...
by spin
Mon Aug 18, 2014 17:43
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3D printing for kids: modelling objects with Minetest

Inocudom wrote:Impressive. Have you ever tried this with a server?


It's an .mts file exported with WorldEdit, and then ran over the mt2obj script (link to github above). Should work, but do try.
by spin
Mon Aug 18, 2014 15:54
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: [Mod] BlockExport [blockexport]

am i just too stupid or does it not work File works just fine. It's offset from the center of the axes by 50 units or so, so the mesh is offscreen. Scroll back a good few times and you'll see it. edit: offset of geometry of your object from (x;y;z) 0;0;0 is exactly 29.0814; -40.38372; 4.16278. With...
by spin
Mon Aug 18, 2014 15:34
 
Forum: WIP Mods
Topic: [Mod] BlockExport [blockexport]
Replies: 14
Views: 2970

Re: [MOD] Minetest 3D Print 0.1 [M3D]

Yeah, I think this may take a few hours depending on dataset and processor. But it makes the data manageable by user in realtime later on. I saw some really huge Minecraft exports, and it was some time ago, I wonder if those exporters tackled the problem of resulting geometry in some way. Maybe we'r...
by spin
Mon Aug 18, 2014 15:29
 
Forum: WIP Mods
Topic: [MOD] Minetest 3D Print 0.1 [M3D]
Replies: 7
Views: 2525

Re: 3D printing for kids: modelling objects with Minetest

For completeness: Blender Cycles render from a piece of Minetest map.
Image
full message in screenshots thread: viewtopic.php?f=3&t=156&start=2450#p151540
by spin
Mon Aug 18, 2014 13:14
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: [Mod] BlockExport [blockexport]

Moving over from the 3d print thread. https://forum.minetest.net/viewtopic.php?f=3&t=9923&start=25#p151515 Did you generate that pyramid from the block exporter, or did you postprocess it (booleans, etc)? Also, https://forum.minetest.net/viewtopic.php?f=3&t=156&start=2450#p151540 it'...
by spin
Mon Aug 18, 2014 12:37
 
Forum: WIP Mods
Topic: [Mod] BlockExport [blockexport]
Replies: 14
Views: 2970

Re: [MOD] Minetest 3D Print 0.1 [M3D]

aldobr, I think boolean will be necessary to import huge chunks of map data. Look at the scene stats here (top of screen) https://forum.minetest.net/download/file.php?id=1020 This is not a big chunk world-wise, and it's terribly slow to perform any operations on already. Initial processing investmen...
by spin
Mon Aug 18, 2014 12:31
 
Forum: WIP Mods
Topic: [MOD] Minetest 3D Print 0.1 [M3D]
Replies: 7
Views: 2525

Caramel Cake!

Blender + Cycles from Minetest export! First ever I believe :) https://forum.minetest.net/download/file.php?id=1020 In case someone is not following, https://forum.minetest.net/viewtopic.php?f=3&t=9923 has given us 3 independent tools to export from Minetest to mesh! sfan5's mt2obj converter (u...
by spin
Mon Aug 18, 2014 10:26
 
Forum: General Discussion
Topic: Post your screenshots!
Replies: 9159
Views: 1071930

Re: 3D printing for kids: modelling objects with Minetest

WHOA GUYS :O
I'll test this ASAP and post results, working on a lesson plan now (deadline).
by spin
Mon Aug 18, 2014 06:45
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

Since materials aren't interesting, here's the above mod I posted, modified to export a 3D (on/off) bitmap instead of "color" data: Prestidigitator, is there a possibility that you could push it to git? Also, I'm afraid my programming skills are null :( I can do things from tutorials at t...
by spin
Sun Aug 17, 2014 19:55
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

makerware
has internal and surface errors, otherwise OK, so all the printers that work on x3g files can swallow those models no problem:
Image
by spin
Sun Aug 17, 2014 19:39
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

Cura 14.03 (?) Not sure about the version, typing from memory Cura did fine, though had some problems with toolpath display, so I imported the Gcode to Repetier. Everything is OK, it's read correctly and very printable: https://forum.minetest.net/download/file.php?id=1016 Now on to makerware.
by spin
Sun Aug 17, 2014 19:35
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

Results from sfan5's mt2obj exporter: This is how the obj looks like imported to Blender. Separate cube objects, 1x1x1 blender units (0.5 radius cubes) arranged in pattern exported from Minetest. Origin point (yellow dot) in the corner of the object, this was the //pos1 I set in Minetest via Worldv...
by spin
Sun Aug 17, 2014 19:29
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: [Mod] Superflat MapGen [0.2.1] [superflat]

Hey, re:the 3d printing thread :) :D May i see your sflat.BLOCKS param? Unfortunately I get an error trying to run the script :/ may be my fault, just enabled the mod in the mod selection menu for a fresh map. No changes. 15:52:13: ERROR[main]: ========== ERROR FROM LUA =========== 15:52:13: ERROR[m...
by spin
Sun Aug 17, 2014 14:00
 
Forum: Mod Releases
Topic: [Mod] Superflat Mapgen [1.4] [superflat]
Replies: 18
Views: 7400

Re: 3d printing for kids: modelling objects with Minetest

The part I was thinking would be easiest to do from a Blender plugin would be to create face data while eliminating unnecessary and unwanted internal geometry. Blender now even has "FGONs" (N-gon faces) which would probably allow a smooth workflow without the need for mod/plugin code to t...
by spin
Sat Aug 16, 2014 21:49
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

Guys, no quarrels, please. Minetest -> Blender workflow would allow Blender's mesh tools to be applied to the resulting model. While this is powerful, it requires extensive knowledge of Blender. In this case, sfan5's OBJ exporter is more universal, as people can export mesh to the 3d packages they K...
by spin
Sat Aug 16, 2014 21:22
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

I dont need a slicer. I can write g-code right from minetest. Man, i'm running out of vocabulary for how awesome that would be. Either that, or English has ran out of proper adjectives. If I can give something in return for that, please tell. Offer from first message stands, I can also do 3d/2d art...
by spin
Sat Aug 16, 2014 16:13
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

sfan5 has completed the code for mesh exporter in 6 hours during today's irc chat. This was the quickest developer response I've f***in seen in my life. Man, I owe you big time. Link to git here: https://gist.github.com/sfan5/c8a647deadbdddf1e05a I'll be testing this tomorrow to debug and establish...
by spin
Fri Aug 15, 2014 22:24
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

In the main directory of minetest, there is a file called minetest.conf.example. It contains all the possible settings that can exist in minetest.conf. Yes, yes, I've realized this already, but the biggest issue is not in the interface. It's getting the cube positioning data exported in mesh format...
by spin
Fri Aug 15, 2014 20:05
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: 3d printing for kids: modelling objects with Minetest

Oh cool! Some money in a FOSS project! Oh, don't get me started on this. IMVHO there's no such thing as free software, there's only donated software. Whoever writes software pays for it with his lifetime and costs of existence. Plus I know a lot of people who'd gladly write for FLOSS projects full ...
by spin
Fri Aug 15, 2014 18:31
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

3D printing for kids: modelling objects with Minetest

Hi all, I'm working as a teacher and modeller (Blender) and I have huge problems with finding a good tool that would let kids model things easily for 3d printing classes (and apparently, so does the whole internet. Oh, believe me, how I searched... :|) The present workflows I have require a lot of s...
by spin
Fri Aug 15, 2014 16:47
 
Forum: General Discussion
Topic: 3D printing for kids: modelling objects with Minetest
Replies: 47
Views: 8676

Re: Minetest Could Be An Educational Tool

Hi all, twoelk from irc linked me up to this thread, I think Minetest is a perfect tool to get kids into 3d printing. And I mean like totally uber awesome, it would let me as a teacher push the 3d printing entry age to 4-6 years from current 8 (which is hardcore as-is and requires a lot of supervisi...
by spin
Fri Aug 15, 2014 16:17
 
Forum: General Discussion
Topic: Minetest Could Be An Educational Tool
Replies: 115
Views: 17715

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