I’m participating in an event for science olympiad called Robo-Cross but I have to make a build by next wednesday but I don’t know what parts to buy. Please someone help me.
That’s quite constrained for time; you need to determine a design, select and buy the parts, have them shipped and then assemble and test it. Can you provide some information about the requirements? What is the competition and what does the robot need to do? Quite a few people participating in a science olympiad have chosen this platform:
robotshop.com/en/stacker-2wd-mobile-robot-2dof-arm-chassis-kit.html
Note that there are additional parts required as outlined in the description.
Ok. The previous suggestion is the closest to an “out of the box” solution.
education.rec.ri.cmu.edu/content/vex/competitions/sub_pages/media/Robocross%20Unofficial%20Rules.pdf (This is the link to the requirements/ rules of the events.