This are single-plate build versions of e-NABLE's Raptor Reloaded, optimised for the Ultimaker 2 (and any other FFF printer with a square build plate). This model is scaled at 100%, and can be scaled up to 150% on the UM2.
UPDATED 29 January 2016: In response to some requests, I've added pre-scaled versions at 100 to 150%. The original files and the 100% files are identical.
Best printed in PLA with 2 shells (0.8mm based on 0.4mm nozzle diameter). Quality and strength will be greatly enhanced by a fairly slow print speed — 40-50 mm/s is recommended.
Do not add any supports — the design has all needed supports and allowing your slicer to add more will most likely block the hollow line runs critical to proper operation.
The settings above will result in a full print time of about 14 hours on a UM2. Scaling up to 150% takes approximately 40 hours per print.