Complex sentence: It has an online tool called Geppetto that allows users to design their own boards and in August 2013 stared a crowd-funding service to allow a group of users that want to get a custom design manufactured to share the setup costs.
Split into simpler sentences: It has an online tool called Geppetto that allows users to design their own boards. In August 2013 it started a crowd-funding service to allow a group of users that want to get a custom design manufactured to share the setup costs.