Full Version: 3D printing for beginners - From Moi/3D-Coat to a 3D printing service

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Sure Marco i can check the model for you.

Regards
Stefan

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Thank you very much!

Meanwhile I registered on Shapeways and this is what they say :



So...no more than 1 Mil polys. I have to decimate when export from 3DCoat.

Also...no more than 64Mb...this could be a problem I suppose...


Marco (mkdm)

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Hi Marco,

yes, file size could be a problem too. i.materialize, i have read, has a file size limit
of 100 MB and sculpteo 50MB if i remember correctly.

I would also strongly recommend that you check you check Shapeways's excellent
printing guide about wall thickness etc.

Regards
Stefan

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@You : "...I would also strongly recommend that you check you check Shapeways's excellent printing guide about wall thickness etc..."

I sure will!

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Hello Stefan and everyone!

I did my VERY FIRST and quick and very coarse test for 3D printing service!

Tese are the results.

I know that it may sound a little "boring" but for this first test I post here all my screen captures to show you the results of this test.

Ok...let's start!

1) I'me made this simple model just to have something to test.
Here you can dowload the 3Dm file : http://take.ms/OtTzD

The size in mm in Moi was : X = 43 Y = 42 Z = 34.5





2) I've exported the model in OBJ format using these settings





3) I've imported the model in 3D-Coat and voxelized it :





4) I've exported the model in OBJ format from 3D-Coat with decimation :
This is how it looks when loaded in MeshLab





5) I have finally sent the obj model exported from 3D-Coat, without any kind of tweaking, to ShapeWays

After the elaboration this is how it looks in ShapeWays and how much it costs :
The dimension are not exactly the same of the Moi file but this is not a problem for me.

This is also the integrity check made by ShapeWays : NO PROBLEM AT ALL!








6) I repeated the same test but this time sending the obj exported from 3D-Coat, without any kind of tweaking, to 3dhubs

NOT WORKED. PROBLEM WITH THE ANALYSIS OF THE MODEL :






7) I repeated the same test but this time sending directly the STEP file exported from MOI, to 3dhubs

NOT WORKED. PROBLEM WITH THE ANALYSIS OF THE MODEL :







THA'S ALL FOR THE MOMENT! .....11 USD (plus tax) is not cheap at all for 1 model :)....anyway....


Thanks to all want to share their comments about my first test :)

Ciao!

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Looking good Marco, bravo!

Interesting that you get errors with the second service, while Shapeways says it is good.

I know also from our printer, for example, that the printer can print models with errors
in it, while our printing check software for our printer would complain too...

BTW. Doesn't 3DCoat has not in the newer Pro version also tools for 3D printing and
checking?

You could also try printing check software like Netfabb basic etc., to see if they give
you errors too.

Regards
Stefan

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Hi Stefan!

Thanks for your encouragement :)

@You : "...BTW. Doesn't 3DCoat has not in the newer Pro version also tools for 3D printing and checking?..."

Sure! 3D-Coat has all tese things, but for the moment I'm not ready to play with these advanced settings.
I don't know what they mean and frankly...for the moment I don't care :)



Anyway...I wanted to repeat the test using a different approach/

This time without 3D-Coat but using direcly the obj file exported from Moi using these settings :



I have exported both to ShapeWays and 3dhubs.

In 3dhubs also this export failed.

In ShapeWays the import was OK but with a more faceted final object compared to the Voxel decimated model exported from 3D-Coat.





I'll keep experimenting, but anyway 11 USD (plus tax) for a single model of 4cm is really too much expensive!!!
They're crazy :)

I have to search another cheaper printing service.

Do you know others ?

Thanks and have anice day.

Marco (mkdm)

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Hi Marco,

> THA'S ALL FOR THE MOMENT! .....11 USD (plus tax) is not cheap at all for 1 model :)....anyway....

You would not believe how expensive printing materials are... and don't forget the people there
who need to be paid too. :-)

Regards
Stefan

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Yes...I understand... but 11 USD (plus tax) for a single model of 4cm is really too much expensive!!!
They're crazy :)

I have to search another cheaper printing service.

Do you know others ?

Thanks.

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No, i don't know others, sorry.

I, for example, wait for quite the opposite (high cost printing). I am
looking for a while now for 3D Printing Services which allows one to
print color models on the Stratasys J750 Multi Material Printer. It is
a super awesome printer which produces awesome color results.

Regards
Stefan

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Thanks a lot Stefan for your help!!

Last thing for the moment...Did you read my previous post ? http://moi3d.com/forum/index.php?webtag=MOI&msg=8867.13

Do you have any sharing about why using the obj exported directly from Moi the final look is more faceted in ShapeWays rather then the model exported from 3D-Coat ?

@You : "I, for example, wait for quite the opposite (high cost printing)..."

Just out of curiosity...WHY :) ?

Thanks!

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Hi Marco,

i usually export for 3D printing as triangles from MoI and not as NGons.
I assume that Shapeways Display Software displays it not smooth when
not triangles. I would simply do another check with triangles export from
MoI and see if it looks better.

The prints i do at work (in colored sandstone) with MoI look also never
facetted.

Why i look for high cost printing? Maybe i did not formulate my words
good enough... what i mean is i prefer high quality prints when
printing something for myself. And high quality prints are expensive
when using 3D Printing Services.

If i would do a lot of 3D Printing i would maybe look into purchasing
a resin printer which outputs good quality, like the FormLabs2 printer
etc.

Regards
Stefan

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Shrunk images

Image Attachments:
full_man_sm.jpg  half_man_sm.jpg 

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I have a Robo R2 3D Printer. I export from MoI in STL format. From there I open my STL file in Simplyfy3D.

Simplify3D is a slicer program that allows you to specify the print resolution, percentage of infill material, add supports, specify the print temperature, etc. The output of Simplify3D is a GCode file which is sent to my printer over WiFi. GCode is a universal CNC language that runs milling machines, lathes, routers, 3D Printers, etc. The printer has a camera so I can monitor the printing on my PC even though the printer is in another room.

The Robo R2 printer has only a single print head, so the color is defined by the color of plastic filament I load. There are a wide variety of filament types & colors available.

Of course if you use a printing service then they will have their own slicer program, so you only need to send them a STL file straight out of MoI.

Ed Ferguson

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Hi Stefan.

@You "...i usually export for 3D printing as triangles from MoI and not as NGons.
I assume that Shapeways Display Software displays it not smooth when
not triangles. I would simply do another check with triangles export from
MoI and see if it looks better..."


Ok! Thanks!

@You : "...what i mean is i prefer high quality prints when printing something for myself...."

OK. I understand :)

Thanks.

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LOL :)

Thanks BurrMan !!

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Thanks a lot Ed for infos!

Much appreciated.

I'm seeing that "3D printing" is a whole universe...so many things to understand and learn :)

Ciao!

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Hi Marco,

For cheaper 3D prints, did you already check the 3D Hubs link from my previous reply?

https://www.3dhubs.com

They're active in Italy too. You're located in Italy if I remember it correctly, or not?

Alternatively, you can try a nearby Fablab. Their service is similar to 3D Hubs.

https://www.fablabs.io

If you choose the PLA material, the price should be about as low as possible for a 3D print.

Regards,

Metin

———————

visualization • pixel art • illustration • 3D design — https://metinseven.com

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Cool 3D print, Burr!

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The "resolution" of your print is going to be more limited by the physical printer, than the poly count of the model...

Obviously, 5,000 polys can show the poly facets in your printed output, but a 5,000,000 poly model exportes from 3dcoat with an 80% reduction at export, would show almost no change and look perfectly smooth.

The printers resolutuon and its "steps" will show lomg before that. A printer with extremely high resolution capabilities, will be EXPENSIVE!

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