Makerbot

Makerbot is a company that sells their own variant of 3D printers, originally derived from RepRaps. The first version was called Cupcake, used the RepRap Generation_3_Electronics. The second model, the Thing-o-Matic used Generation_4_Electronics. Their current machine is called The Replicator http://store.makerbot.com/replicator.html.

Someone has also built a repstrap similar to the old cupcake. Check out Pirated CupCake for more details.