I think we’ve all been there. A print finishes, the delighted patron/maker scampers away with a project, fresh off the print plate. You go to start the next print and low and behold, the raft is still stuck to the plate. The plate is no spring chicken, it has divots and chunks out of it, maybe a little scratched up from some intense gouging. Anyway, each one of those gouges is a great little foothold for your raft. Every print or so I like to wipe down the plate with some surface cleaning wipes and dry the whole thing off with a lint free cloth. I generally leave the little pieces of plastic that fills in the gouges because trying to dig them out makes the holes bigger. I always recommend using a raft when printing because that way the bottom of the print is saved from the irregularities of the plate.
I was lucky enough to be loaned a Raspberry PI computer from another department. I have yet to download the OS onto a SD card, but the first order of business was to print a hard outer shell for the thing. A Raspberry PI ships as a circuit board with a couple of micro processors on it, some hard wired slots and some Input/Output and you’ve got something to cry about if you ever dropped it.
The next thing to do is actually plug the thing in and get programming!
All these folks walked away from our workshop with their very own, self designed 3D object, printed on a Makerbot!