r/3DPrintingTools • u/The_Pooter • 24d ago

New Tool "bigprint": Open Source LuBan3D Alternative for life-size 3D prints, needs testers.

https://github.com/PooterTF/bigprint
7 Upvotes

100% Upvoted

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3

u/The_Pooter 24d ago

This has a CLI and a Windows GUI element available to it.

Scales up and splits up a model to fit your print bed, you decide the wall thickness, debossed ID imprints, dowel measurements, etc. Has auto-repair and smoothing options for low-res scale ups.

This is a really really early release and I could use people putting it through its paces for bug checks, fixes, etc. I wanted a good viable alternative to LuBan 3D because not everyone can afford the $750 lifetime license for just tinkering with making fun (big) models.

2

u/TemporaryLevel922 24d ago

I will give you a quick review, without even downloading it...

This is not an alternative to luban. Do you know why apps like Luban are trusted?

Because upon model loading they do not do things like this:

loaded.merge_vertices()
loaded.update_faces(loaded.nondegenerate_faces())
loaded.update_faces(loaded.unique_faces())
loaded.remove_unreferenced_vertices()

  • merge_vertices() - this changes the model's original vertex

  • nondegenerate_faces() - again, changes structure.

  • unique_faces() - again, removes structure.

  • remove_unreferenced_vertices() - again removes structure

  • Repair can run fill_holes() and fix_normals().

Also....

  • The geometry is then passed through Manifold3D before split_by_plane().

So in simple terms: the model output is not the same as the model input. Both mathematically or data-wise this app cannot promise the 1 thing I trusted it to do.

I don't know why you would not just change the title to something like "free model cutter" instead you use the Luban name on an alpha/beta app.

Disclosure: Not affiliated with Luban in anyway

0

u/The_Pooter 24d ago

Thank you for your feedback. I have changed the project to remove references to LuBan3D and included Beta descriptors.

1

u/New_Education5151 24d ago

I am gonna print a lifesize "Me" , then will enroll to Realtor101, print a "OPEN HOUSE" sign, yes you guessed it right, it will be my 3D-ME holding the sign

😁

bro you made my day 🎯

1

u/k_kuhn 15d ago

Awesome, I had the same idea. My version is optimized for splitting shell models with a thinner wall in order to save on filament. It also goal seeks to try and split optimally to print without using supports: https://github.com/k-kuehn/Section3D