I believe a Bukobot should display a red Bukobot logo. I cannot place it on my cross extrusion as it is occupied by filament holders so I need to place it on the Y rail. I assume the logo in http://www.thingiverse.com/thing:21885 is for the version 1 printer. This is a variant for version 2, where the Y-axis mounts are in clear plastic.. The logo seems to be quite prone to lifting issues. My way out of this issue was to replace the kapton tape.