Issue with Prusa Slicer  

RE: Issue with Prusa Slicer

the model does not appear,

What do you mean? It must be in the parts list or you wouldn't be able to slice it. Is it not visible? Maybe you can post the STL or even better the 3mf project file here so we can take a look. Files have to be zip compressed or the forum software won't accept them. 

RE: Issue with Prusa Slicer

It's just not visible. I can send you the file, HOW?

RE: Issue with Prusa Slicer

It's ok ,I think I have solved it.

RE: Issue with Prusa Slicer

Posted by: @modelleroo9

can somebody help me please.

I produce a model in Freecad, then I export as an STL Mesh file. I then import it into Prusa Slicer 2.7.4 but the model does not appear, yet when I click in Slice it appears all ready to export G Code. It prints ok, but this means I cannot produce more than 1 at each printing. 

modelleroo9

Please also explain how you work in Freecad. 
I design all in Freecad and also export als STL (or STEP) to import in PrusaSlicer .
And that export can only done when selecting 1 or more visible objects. 
Never seen the error you mention. 

RE: Issue with Prusa Slicer

Its possible the OP is on the slice preview window and not the 3d Editor window.  Whenever anything is changed to invalidate a slice the platter will appear to be 'empty' until sliced again.  PS does not automatically switch back to the 3D editor view

Controls 10 as listed here in the Prusa Slicer knowledge base https://help.prusa3d.com/article/ui-overview_1766   

RE: Issue with Prusa Slicer

Thanks for the helpful hints. I am new to Prusa, having been used to Creality and Anycubic.  So still finding my feet and occasionally tripping over them!!!!!

I must say my new Prusa MK4 is printing very nicely.

Thanks

RE: Issue with Prusa Slicer

The most likely explanation indeed.