I alluded to the getting Bottleworks Aluminum z axis arms (http://www.bctechnologicalsolutions.com/arm-upgrade/index.html) and now I have them and they are installed.

Shiny New Aluminum Arms

The install was NOT as simple as the heated build plate install.  The instruction for the arms calls for a complete disassembly of the z axis to remove the OEM arms.  This took the better part of 2 hours (possibly some interruptions in between) but it definitely a far cry from the 10 min install for the HBP.

I am very happy with the result.  The product is very professionally made and the instructions are easy to follow.  One unexpected result is that I am getting much more consistent sticking to the build plate.  I suspect that the OEM arms were slightly flexing when the filament was getting laid down and this is no longer happening.  Some minor adjustments to the height that I am leveling at allowed the parts to pull off more easily.

Once again hats off to Bottleworks for another great product.

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