Make My Fusion360 AutoCAD Design 3D-Print Ready

I need help with improvements on my current fusion 360 autocad that Ive made for my college project.I want it to become 3D print ready.It is a very simple model but we need an expert to tell us how our final mechanism should look like and make the correct size and tolerances so that all we need to do is 3D print it and assemble it with a servo motor, springs etc. Besides giving us the final version please also guide me what I would need to do further so that the mechanism works perfectly(we will only be given marks if it is fully functional). Let me walk you through the exact working principle of our mechanism. The system starts with a continuous rotary input, driven by a standard DC motor attached to our custom snail cam. As this cam rotates, its spiral edge gradually increases in radius. This edge acts as a wedge against the follower peg on our striker block. As the cam turns, it forces the striker block backward perfectly straight along our guide rails, compressing a coiled spring against the back wall. This is our 'cocking phase,' where the motor does mechanical work to store potential energy in the spring. The magic happens when the cam rotates past its maximum radius and hits the flat drop-off. At this precise release point, the higher-pair constraint suddenly vanishes. The stored potential energy instantly converts into kinetic energy as the spring violently expands, snapping the striker forward to launch the dart. I am attaching the photos of my autocad along with its f3d file. Please let me know if you will be able to do it at the earliest as well as your price for it.