How to print hollow, intersecting, open objects (AUDI rings)

[maxmade 0]

hello,

how to print hollow, intersecting, open objects (AUDI rings) with 1 wall layer.

in my case cura combines the regions to one shape.

please help

thanks max

test1.stl

[ahoeben 829]

You don't.

 

A proper hollow model for 3d printing has walls that have a thickness, ie: inner and outer walls.

If you wanted to print that AUDI-logo-like model, you would create 3 tubes with inner and outer walls (and a top and bottom), and then properly union them. Otherwise you will have a model that confuses any slicer.

[geert_2 369]

This are 3 separate rings. Probably you would need to "union" them in your CAD program, so it becomes one single object.

 

Edit: while I was still typing, ahoeben already answered. Speed is everything. :-)

 

But he is right: it is best to design the wall thickness in your CAD-program too. Don't leave such things to the guessing of automatic tools which don't know the meaning or purpose of your model, nor your wishes. So they have to make generalised guesses.

Edited September 12, 2018 by geert_2

[ahoeben 829]

Having said what I said above, you could try going into the Custom settings, and find the "Union Overlapping Volumes" setting (use the Search!), and turn it off. But it is much better to make proper models.

Edited September 12, 2018 by ahoeben

[maxmade 0]

thanks! that works!

i want to use the 3d printer to draw vectors with a pen. so this is very usefull to direct draw vectors, extrude them by 0.2mm an plott them.

thanks again:)

 

 

But it doesnt work for open curves....:(

 

Edited September 12, 2018 by maxmade

[maxmade 0]

i have to convert the vectors into outlines (width 0.6mm) and extrude them into volumes (hight 0.2mm).

i use rhino 3d and grasshopper for that.

Edited September 12, 2018 by maxmade