A 3d-printer Printed Sundial

These notes describe the steps needed to print a 3d sundial, they can save you a lot
of time if you want to mess with 3d printing. Three ways of getting them printed are
discussed. The full notes and templates are
here in ZIP form.
my first 3d printer sundial
Sundial on my wedding cake
July 20, 2013
Link to IMSI TurboCAD (deluxe at $130 approx) and
Link to the
low cost 3d printer ($1300 approx) and
Link to an
Android STL file viewer

PLA Material ~ PLA (Polylactic Acid) may be the easiest material to work with, it is a
biodegradable thermoplastic derived from renewable resources such as corn starch
and sugar canes. This makes PLA environmentally friendly and very safe to work with.

ABS 3D Printing Material ~ ABS (Acrylonitrile butadiene styrene) may be the
second easiest material to work, it is an engineering polymer commonly used
to produce car bumpers due to its toughness and strength. It’s also the stuff
that Lego blocks are made of…tough enough but safe enough for the kids to

Some cloud 3d printer organizations have their own special materials.
Designed for no longitude correction and
for latitude 33.5 the dial needed  a +31
minute correction on the day the photo
was taken. So at 1031, the dial correctly
showed 1000 hrs. The 3d print shop
promised a 4 day turn around, it was ready
the next day. Printed using ABS (see
below), single print run, no assembly.
Same design as above but has
lettering and a peripheral circle.

Hour lines considering gnomon
thickness were 3d printed and are
mostly withing 1 degree of
design. The noon line is
intentionally very thin,
see the