x carriage for dual head tarantula with belt tensioner

I made this as a replacement for the original X carriage that comes with the printer. I found that a lot of them broke pretty easily so I thought this might be a useful fix. I also added a tensioner prototype for the belt. Have not tested it yet, you may have to drill it out a little bit but it seems to work ok. Hope this helps. I also included the Autodesk Inventor file so you can do any editing you want too.