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Jerry S
(@jerry-s)
Eminent Member

A friend sent me a file to print. Both in stl and obj and in mm and inches. He has sent me files before and they print fine. But this time when I open them in prusa slicer the object is so small you can hardly see it. Is the problem on his end or mine. The guy that is sending me the file knows what he is doing, a CAD specialist, and we can't figure it out. HELP!

Posted : 19/04/2021 1:45 pm
Neophyl
(@neophyl)
Famed Member

We need more information.  Also preferably the files too.  STL files don't have a size, they are assumed to be in mm though as that is what PS expects.  If it gets a very small file its now supposed to ask if the object was created in inches and scale it up if you answer yes.  The software also has the inches tickbox now.

Not sure about obj format as its not something I commonly use.  The usual zip of your saved project .3mf file and attach it would be a good start, and if you know how big the object is supposed to be that could help someone figure it out.  Would also help to know what the CAD source program is in case anyone is familiar with that too.

Posted : 19/04/2021 1:57 pm
Jerry S
(@jerry-s)
Eminent Member

@neophyl

Here's one of the files. The slicer does not ask to change from inches to mm but it shows up in inches. I checked/unchecked the little box to mm but the object does not get bigger. The object is roughly 8 long x 5 1/2 wide x 1/2 high inches. Don't know what the CAD program is but I'll find out. File attached.

 

Thanks for your help.

Posted : 19/04/2021 2:15 pm
Jerry S
(@jerry-s)
Eminent Member

zip attached

Posted : 19/04/2021 2:17 pm
Neophyl
(@neophyl)
Famed Member

if its supposed to be in inches then if you right click on the object in PS you can select 'convert from imperial units'.  That scales it to 9.09"x6.25"x0.75" which sounds like what you were expecting.

Posted : 19/04/2021 2:53 pm
Jerry S
(@jerry-s)
Eminent Member

So that's the answer! You learn something new every day. Thank you. But now I see the object is to big for my printer................but that's my problem. Thanks again!

Posted : 19/04/2021 3:03 pm
Neophyl
(@neophyl)
Famed Member

@jerry-s

The 3mf you attached had a mk3 selected . If that is what your printer is then its only out of bounds as the part in standing on one edge when imported in (as the model will have been modelled in that orientation).  If you use the place to face tool the part fits easily on the mk3 bed.

Posted : 19/04/2021 3:57 pm
Jerry S
(@jerry-s)
Eminent Member

Once again I have learned something. I hope there is enough space in my head to keep learning!

 

Thank you very much,

Jerry

Posted : 19/04/2021 4:02 pm
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