Yeah, it's a spider-bot. It's meant to be like an assistant in the lab. Take notation, remember what projects you're working on, and find items for you. [Peter is trying to not feel silly he made a spider.

He spreads out the schematic a little more, gesturing as he speaks.] In theory, it could self duplicate from spare metals or other materials. So, if you needed more than just one. I have the general idea down of how they could convert things over into useable resources to create a duplicate or fabricate a tool.

[He has a very thorough explanation in this narration box to tell Otto how this works. Don't worry about it.]