how to modify urdf for another robotic arm
hello, I am new to ros. I just started learning ros for my master thesis. my robotic arm name is "grabit-arm". but I could not find urdf for that arm. but I found urdf for similar robotic arm ( "windowx arm"). so my question is, is it possible to do some modification in the urdf in order to use it for my robotic arm ?? or else i should start making urdf file from scratch?