How do I make a resource gatherer?

I am trying to make a game that when a resource spot is found, you can set a gatherer on it which will continuously gather said resource until the gatherer’s canister can’t hold more. Then you can empty it and it will gather again. Help is much appreciated.

Here's an example. dropbox.com/s/y6jhfentr5qitz6/ResourceCollectionExample.c3p

Ok so I opened it, and that is what I want, however the resource will not have a finite amount of resources but instead hold infinite. So it will allow for semi-idle gameplay. Also the gatherer is an equipment that will not be movable once placed.