Printing ABS Without A Heated Bed

After modeling a part using Solid Edge, I decided that PLA would be too brittle for my print. The part would be exposed to the elements and needed to be strong. After doing some research, I concluded that ABS would be a much better solution, so I placed an order for a spool of ABS. I was concerned that printing ABS without a heated bed would be next to impossible. Most 3D printer manufacturers recommend printing ABS only if you are using a heated bed. After completing a few test prints, I realized that it was very possible to print ABS without a heated bed; so much so that I printed out over 30 parts without much effort. Below are the settings I used.


Printer: Type A Machines Series 1
Build Platform: Glass with sanded painters tape @ 23 degrees Celsius
Nozzle Temperature: 239 C
Nozzle Size: 0.5 mm
Slicer: Simplify 3D
Layer Height: 100 microns
Brim: 5 cm
FYI: Sand the tape a lot. If the print fails print again ASAP to maintain some heat on the build platform.

UPDATE