Hatebu icon ver. 2

remake from http://www.thingiverse.com/thing:541193 .
version 1(541193)?four corner is made clothoid curve(iPhone app)
version 2(this page)?not clothoid curve(original)

-----below is same to 541193-----

Icon(favicon) of 'Hatena bookmark'. (http://b.hatena.ne.jp/, abbreviation:hatebu, pronounce like:hat-A-bull)
size: (W)30mm
'hatebu_icon_raft.stl': with 6mm offset and helper discs. Print with support for your 3DP.
I use this image for the icon of https://twitter.com/hatebu_3DP .