New tires molded
how did you mould them? what did you use for the tyre material?
many questions 
material and how to 
Hi guys, basically I have printed the bed and molded following the instruction of the link: http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/
Also, you can get information and stl to print in thingiverse:
How hard was it to get the part to release from the mold? Did you use some sort of release coating on the mold?
first I thought it would be difficult, but it is very easy to remove the mold. Not need to use anything as release agent. The silicone do not adhere in ABS.
Update: micro oil is very good to help mold release. I also used Vaseline and butter (yes, cooking butter).
all worked well