Could anyone modify an stl file for me?

Could anyone modify an stl file for me? I know what I want but I don’t have the knowledge to do it.

Import into sketchup and cut

Well, sketchup dont support stl natively, i tried to add the extension but it was unavailable at that time and the last thing is that I literally don’t know how to use any 3d modeling software

I’ve done similar things in FreeCAD. Where do I find the STL?

blender can do it https://www.youtube.com/watch?v=eA5FQJAfAu4 different file, same concept: import stl, tab into edit mode, grab vertices, press G then Y then -20, tab out of edit mode.

and your file
https://drive.google.com/file/d/0B6INQmg_kjkhU2VGRHAxbjNWUzA/view?usp=sharing

@Olivier_Bilodeau Here you go http://www.thingiverse.com/thing:1741465

Try this: http://hoxnet.com/Carriage_stretched.STL

@Wayne_Hoxsie How do you like FreeCAD vs OpenSCAD?

thanks all, sorry for being late to answer, didnt receive notifications

@Nate_T I’ve never used OpenSCAD so I can’t compare. FreeCAD has some quirks, but it is very powerful, and the main plus for me is that it runs in linux!

I generally trace .stl’s in Solidworks. I have not found a better more automated workflow.

bbut solidwork aint free

Exactly. And Fusion360 is not available on Linux.

her you will find a good free app for mac and pc,

http://www.123dapp.com/design

If you don’t know everything about CAD design Tinkercad could help you in this case. Is very useful for this kind of small changes. For learning I strongly recomend OpensCad

Designspark mechanical will edit this file almost natively.

Try Fusion 360 for this. You can import it as a mesh and manipulate it that way. Though there is a slight learning curve if you have never done it before. But it’s probably the best way to work with .stl files, especially 3d scans and files with many faces.

Take OpenSCAD, i think, this object needs only 30 lines of Code with parameters, so you can change sizes very quick. Give me a painting I will do it for you.

in general, ask the original designer to publish the original design file. STL Is an export for printing only that that only contains as list of triangles. All meassurements, constraints, names, dependencies, … are gone at this stage.