I don't know if it's less expensive to build it yourself but I think Makerbot sells parts for repraps also. http://reprap.org http://reprap.org http://reprap.o

I don't know if it's less expensive to build it yourself but I think Makerbot sells parts for repraps also. http://reprap.org http://reprap.org http://reprap.org/bin/view/Main/PartsSupplies http://reprap.org/bin/view/Main/PartsSupplies