strengthened X Rod mount pieces for the Lulzbot TAZ printer (shown in green in the picture above). I noticed on the Stock TAZ that there was a lot of flex in the stock parts, especially if you try to increase the x belt tension. These parts add some stiffness to the existing parts, and remove some unused holes. They may also help with a slipping X belt (bot no guarantee on that) UPDATED FILES 06-23-2013. Noticed the Z nut mounting holes were off in Y by 0.75mm UPDATED FILES 06-24-2013. integrated some enhancements that lulzbot allready integrated.Print the parts, insert the threaded nuts with the correct tool (soldering iron and insertion tip) and replace the weaker stock parts with these. You may also have to ream the 10mm hole for the rods.