FLL 2021: Deliver and Drop precisely - 10 out of 10 on how to accomplish the Cargo Connect mission Pro Preview

This is a 10 out of 10 tutorial on how we build a reusable attachment. This is a reusable attachment. It's the same attachment and program for the train and for the circle and for the platooning trucks where we need to load the cargo. Same attachment for three different missions, which is quite interesting as an approach. Ten out of 10 to see how consistent and reliable this attachment is.

We load the cargo objects. Position the robot. Programming is just move forward and lower the attachment. First run, something happened there. Probably, we haven't loaded the attachment correctly. Let's try again.

The two objects are in the circle. Again.

Third run, and it's also successful. Two out of three for now. Again, the point here is to demonstrate a neat little trick where we move the attachment down and then slightly up. In this way, we can reuse the same attachment for a number of different places in which we can place these cargo objects. It is important how we start the robot and where the attachment is when we start the robot. If it is too low, then it will make a mistake. If it's too high, probably it won't be able to drop the cargo objects.

Six or seven tries with it. It's quite consistent and reliable, I must say. Yes, it's difficult to get to the right place on the field, but we have another course for LEGO Education Spike Prime which focuses entirely on this. These are also simple attachments because we try to build everything from the same set in this course. We don't go out of the LEGO Education Spike Prime set. We use only this set and try to accomplish the different missions on the competition. That's why you see the robot like this and the attachments like this. It could be much more complex and with a lot of different improvements, but we limit ourselves to the set. That's it. A consistent, reliable, reusable attachment. See you in the next tutorial.