As the title indicates, I can't modify a part on solidworks, a rack that I have to modify (the size and remove the material).
This piece is imperative for my project which counts coef 12 of the STI2D baccalaureate....
I am attaching the screenshots to better visualize, and do not hesitate to give me advice (preferably simple) for my tennis ball propulsion system that must be integrated into a robot. :)