I made an executive decision when I started to design this robot in a CAD program to give it 3 Degrees Of Freedom (DOF) to reduce cost and decrease error when the robot returns the ball. Error mostly comes from the moving parts. We have 5 moving parts (4 servos and 1 air cylinder).
We talk about our 3DOF here in the Reaction System Video:
Please tell me if you know of a cheap way of getting or creating fast and accurate xyz-axis translation system that can cover the whole table. The thing that makes translation hard is F=ma (Force = mass x acceleration). You need to have a system that can accelerate, decelerate, and stop at particular point in xyz. In addition, there will have to be a feedback loop to tell the response system where the paddle is in real-time for the system to calculate the new response trajectory. The icing on the cake is that the system has to do all of this within a fraction of a second. It is possible but the cost will go up. Please tell me what your thoughts are?
Keep asking questions and giving suggestions. Thanks!
Great questions! Thank you for watching my videos.
We know how to make the robot hit at varying velocities and angles. We plan on making the robot strategical but we first want to make the robot cheaper and faster. Please tel me if you have any ideas.
The prediction system cannot deal with multiple bounces how it is set up. We were thinking about it but we did not have time to address that issue. Calculating one bounce was hard (non-linear system) and calculating four to six bounces would be a nightmare (non-linear system"s").
Thanks! Please subscribe to our YouTube channel. If not, I will make another post when we get another video up explaining some more of the details behind working on a project like this were time and money are not on your side.