A challenge for the Behemoth

This spiral lightbulb is always a challenge to print.  It requires good retraction.  As the print gets taller the spirals get pushed around by the print head.  This makes the layer alignment difficult and as a result the surface finish suffers.  That said this is the best one I have printed to date on any of my printers.  The Behemoth is my 4th 3d printer.

I printed this one at 0.2mm layer height sliced with slic3r.  Fill was 0.15 with solid infill threshold area set to 0.  I also enabled cooling with min layer time of 15 seconds and min print speed of 10mm/s.  I printed using silver 1.75mm PLA from Ultimachine at 198C.  I used my floor fan on low to cool as it printed.


Behemoth 3d Printing

I have the Behemoth printing! I printed out the slic3r version of the tornado posted by Sound on thingiverse. I thought this would be a good test for the printer. This isn’t your typical first print. No calibration cubes here. Just right to business. It turned out very well. Layer alignment was excellent. I was a little worried that I might have issues with large objects This is the biggest object I have ever printed.  I’m relieved now and can spend time cleaning up the wiring and install the end stops for x and y.

Print specs:
– http://www.thingiverse.com/thing:33344
– 210mm tall
– 0.31mm layer height
– 195 C
– Active cooling from a floor fan on low
– 2 perimeters
– 3 solid layers on bottom, 0 layers on top
– 0% infill density

– build envelope (350mm+ on X, 350mm+ on Y, and 400mm+ on Z)
– 0.35mm steep head nozzle with makergear hot end.