3d printing model issues

davidtriune

I've been trying to print my characters but when I slice them in CURA, i get strange issues with the obj. There's holes in the model etc

 

Has anyone gotten this to work in Cura?  It seems to only work in Slic3r, but I don't like using slic3r since it slices very slowly and crashes a lot. 

I tried different things like cleaning the model in meshlab, exporting with different settings and filetypes in blender.

 

daveso

well, I've been told there's more to it than just bringing in the obj. Thew model has to be corrected/optomized. I have no clue how to do it, and have been hoping someone would just detail step by step the path needed. 
So far no luck. 

There are some online tutorials though that talk about bringing the model into Blender and then doing whatever, but i have no idea what that whatever is. Sorry ..but I've been trying to print stuff for awhile and am not getting anywhere. I just don;t have the knowledge of modeling necessary. 

OH ... there is a 3D Print company that is attached to DAZ ... there is a plugin for DS ... they will do the optomizing for $2. Not sure the quality, but I think I'm going to try it just to see. 

https://www.daz3d.com/gameprint-3d-print-plugin

richardandtracy

I have only printed a V3 based figure using ChiTuBox for my resin based Anycubic Photon. There were voids in that, and they appeared to be caused by overlapping surfaces confusing the slicer into thinking an internal surface was an external one. While I got voids, I never got shapes like those seen in the image, the places where I saw voids was inside the head where the teeth, tongue and eyeballs were confused as being external faces.

I wonder if you should try a different slicer and see if you get a different result.

Regards,

Richard.

albuc2013

Hey, you need to make the .obj manifold before you can print it. You can do this in a free app called meshmixer under the analysis tab and then run the inspector to repair the mesh and remove all the unnecessary parts. This will get rid of the eyeballs but you can add them again in the same app. The missing parts in the ear and nose are down to cura excluding parts too thin for the nozzle on your printer to print. Try reducing the layer height and you should see an improvement. Unfortunately this will add a lot of time to your print so you'll have to experiment to find the right balance. I hope this helps, good luck printing. 

 

davidtriune

albuc2013 said:

Hey, you need to make the .obj manifold before you can print it. You can do this in a free app called meshmixer under the analysis tab and then run the inspector to repair the mesh and remove all the unnecessary parts. This will get rid of the eyeballs but you can add them again in the same app. The missing parts in the ear and nose are down to cura excluding parts too thin for the nozzle on your printer to print. Try reducing the layer height and you should see an improvement. Unfortunately this will add a lot of time to your print so you'll have to experiment to find the right balance. I hope this helps, good luck printing. 

Thanks a lot for this, I'll try meshmixer out!

and thanks everyone else for your input.