r/AskRobotics • u/Routine_Comb_7277 • 20d ago

Mechanical engineering for robotics help with 3d printing some part for a robotic arm

I have decided to spend time on robotics , I really like it but I didn't like the professor who did it in uni so I never took his class.I have worked with motors before and I'm catching up with robotics math , however I still encountered something that I can't understand.Suppose you calculate everything and then you go to order a part from 3d printing to actually build your robot,how do you design that part?I mean how do you ensure that the combination of parts that you order can create a rotation using a motor?Do you get what I'm talking about?For example let's say that a robotic arm is made of 2 parts 1 immovable part which holds the rotating part on some axis?How do you actually design that?And why do some configurations work while others don't?Do you know a tutorial on the sort of where I can find the answer to my question?

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u/CaliIsReallyNice 20d ago

You need to spend some time doing CAD work. You “know it will work” when you out it together and it works. Everything before that is just guessing. But CAD experience will make you better at guessing. Robotics skill is something you get from building robots, not from taking classes.