RobotWorkshop has a project in TheMagPi #35 (p.24, Pi+RoboPi based turtlebot)
Bill Henning
Posts: 6,445
The July 2015 issue The MagPi just came out, and Robert Doerr (our RobotWorkshop, who has built bots that competed in BattleBots) has a feature in the Projects Showcase (p.24 & p.25) showcasing PIPLATEBOT – a very cool Raspberry Pi (and RoboPi) based turtlebot.
https://www.raspberrypi.org/magpi/issues/35/
http://www.robotworkshop.com/robotweb/
https://www.raspberrypi.org/magpi/issues/35/
http://www.robotworkshop.com/robotweb/
Comments
Plus, it's always fun to poke around new robot websites, that article mentioned http://www.dawnrobotics.co.uk/
I just found http://www.robotmesh.com/ which carries Parallax and many other brands.