It's designed for my Blade NanoCPX R/C Heli and fits perfectly.

!!!Attention!!!

• You must print this with 0% infill and only ONE perimeter!
• Or you use the spiral vase feature from Slic3r

Best results with PLA / ABS, a spiral vase feature (looks much better) with an extrusion width = 0.6 mm.

...more on the Instructions tab

Slicing Settings (without spiral vase)

• 0% infill
• 1 Perimeter
• 2 Bottom, 0 Top Layers
• low speed 30 mm/s
• extrusion width should be >= 0.5 mm

Slicing Settings (with spiral vase)

• 2 Bottom, 0 Top Layers
• low speed 30 mm/s
• extrusion width should be >= 0.5 mm

Cut Out

• For the mounting holes use a really sharp knife and carefully cut from the inside
• For the rest use a sharp knife or a small scissor

The pictures shows a print in green and black ABS (1.75 mm)

• Sliced with Slic3r 1.0.0r2
• spiral vase activated
• 2 Bottom Layers, 0 Top
• 0.2 mm Layer height
• Perimeter speed 30 mm/s
• default extrusion width 0.5 mm

Print time 1:05 h on my custom style Delta with a 0.4 mm Hexagon Hotend.