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object changes after importing into cura


Popopolo

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Posted · object changes after importing into cura

I draw a piece I want to print, when opened with cura, the design changes, tried redrawing it many times, tried straight lines instead of arcs, allways wrong, autocad opens it correctly.

 

Better a few images...

 

Many thanks!!

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000322.png

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000324.png

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    Posted · object changes after importing into cura

    Hi!

    I installed several pluggins, inspector and solver and none worked, I readed something about sketchup doesn’t draw  watertight objects or something like this, so triyed fusion 360, unable to draw a simple square, ended installing stl exporter pluggin and do the job, seems that the problem is the .obj file 

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    Posted · object changes after importing into cura
    On 2/18/2019 at 10:30 AM, Popopolo said:

    ... so triyed fusion 360, unable to draw a simple square, ended installing stl exporter pluggin and do the job, seems that the problem is the .obj file 

    Fusion 360 isn't so difficultly to use if you know how to start. Search in YouTube for Lars Christensen and Brad Tallis. They did some really good tutorials, easy to listen for beginners too.

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    Posted · object changes after importing into cura

    The more I use skethup, the more I like it, til I try to print, yesterday found the 24 segments circle bug, draw a circle, print a polygon... check the printer, draw a circle, print a polygon!!! Realy?? A polygon?? Just 24?? I go back to autocad...

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    Posted · object changes after importing into cura

    You could also try DesignSpark Mechanical, by RS-components. This is a free and limited version of SpaceClaim, and only requires registration. It's user-interface is somewhat similar to SketchUp, and easy to learn, but it is way more powerfull. And I *never* got any problems when exporting to STL. Go to Youtube and have a look at the lots and lots of tutorials, to see if it appeals to you.

     

    Learning DSM will cost you less time than trying to repair a single corrupt STL-file produced by SketchUp, so it is worth the time-investment.

     

    DSM is excellent for mechanical designs based on geometric shapes. But it is not suitable for organic designs.

     

    SketchUp was never made for 3D-printing; it was ment for visual 3D-representations of buildings only (before Google invented its own methods of converting aireal photos automatically into 3D). And indeed, it produces sort of cardboard models that are glued together, with gaps in the seams. Zoom in on text made in SketchUp and you can easily see it.

     

    Example of design in DSM:

     

    dsm_screendump1.thumb.jpg.c7694bbad3e462f3c2ed04737ef6e53f.jpg

     

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