D-bot X/Y motion system linear guide blocks and pads made from Igus tribofilament

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Note: I just posted a version 2.0 of these Igus-filament slider blocks and pads here:
https://www.thingiverse.com/thing:2444422
Version 2.0 offers a more refined shape for the carrier blocks that blends better with the original D-bot parts. The version 2.0 sliding pads use less Igus material and reduce the surface contact area between the pads and the v-slot rail. I don't consider version 2.0 as a necessary upgrade for anyone who has already made and installed the version 1.0, though i