Bit Patch, https://cdn.thingiverse.com/as....sets/b8/67/36/cf/a7/ free!. https://cdn.thingiverse.com/as....sets/86/f2/f1/74/ae/ AutoCAD LT; 3ds Max; https://cdn.thingiverse.com/as....sets/86/77/c6/42/a8/ Civil 3D; https://cdn.thingiverse.com/as....sets/96/6b/b0/c8/a5/ Inventor; https://wakelet.com/wake/Syjic5igFle9MWHF8t5dy Maya; https://cdn.thingiverse.com/as