That's not a dumb idea, however: space is an issue, the rest is fast enough but even so parts do tend to fall in clumps and if two such clumps were to fall at the same time it could lead to a jam which requires manual intervention.
Ideally parts would land on the belt in a very regular rhythm, without any kind of irregularity whether the parts are 8 mm round 1x1 plates or 16 long 1x1 bricks. You need about 3 cm of space on either side to make sure the right part gets blown off the belt, that's the most important thing that will eventually limit the speed.
Oh, another factor limiting the speed is the maximum acceleration over the stretch towards the camera, otherwise the parts are still moving on the belt when they reach the camera and then you get bad images.
Ideally parts would land on the belt in a very regular rhythm, without any kind of irregularity whether the parts are 8 mm round 1x1 plates or 16 long 1x1 bricks. You need about 3 cm of space on either side to make sure the right part gets blown off the belt, that's the most important thing that will eventually limit the speed.
Oh, another factor limiting the speed is the maximum acceleration over the stretch towards the camera, otherwise the parts are still moving on the belt when they reach the camera and then you get bad images.