Postlight3

This is a modification to  Postlight2. I applied a double twist to the straight ribs but was careful to allow tiny holes between them at the widest part of the top. The holes turned out to be too small (see the magnified image) so for Postlight4 (printing now) I've changed the shape of the top and made the ribs larger and farther apart.

Read about how the double twist works here: http://birkbinnard.com/blog/do-the-twist2/.

This lamp is designed to hold any one of several LED lights called "puck" lights. You can get these powered by either batteries of wall power. This blog page has links for wall powered lights that work well: http://birkbinnard.com/blog/wall-powered-led-lights /.  It printed in a little over 21 1/2 hours using a print speed of 90 mm/sec and layer height of 0.200 mm.