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Used in: Fathom
and possibly other machines.
This is the UPGRADED Reproduction Replica Version of the original part of C-972-3, - this part being the C-972-3 U (U=Upgraded)
The upgraded version is my recommendation as it has larger 2mm radius along the inside ribbing of the arm instead of the 0.2mm radius to strengthen it up and reduce risk of cracking. In edition I have filled in the top section as this is the common area of failure as well as adding an extra brace in the corner. These upgrades were implemented with the goal to design the part to last.
Note: the upgraded version is just a little more in cost compared to the standard design due to Shapeways volumetric costing because of the larger radii, extra bracing and sections filled in.
There is a Premium White which is really a higher finish at a higher cost and not really required.
If you need the guides for the assembly search swinksc-972-3parts