One of the things I don’t like about 3D printing is the time it takes to print. So I decided to see how fast this thing would go and see print time go down on the Unicorn file from Thingiverse.
Especially with the infill a lot of time is saved. The layer thickness for this print is 0.25mm printing this at 0.4mm would speed it up even more.
Update: the feed rate in this print is 150 mm/s, printing about 41.4 cc per hour (for measure, this would (theoretically) allow you to print a full 1100 cc RepRap Mendel set in 28 hours). The Unicorn STL was scaled up a factor of 2, so it has 8 times more volume to print. The limiting factor to speed still seems to be a software (firmware) related issue, not a hardware limitation of the frame (mechanical). Of course, you do need to have a well oiled machine to print at speeds like this, but it’s definitely possible. The shape would just fit in a 8 by 9 cm big. The raw material and electricity costs of this print are about 40 eurocents.