Summary

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: I attempted to do this again today with 150 grit and my prints were failing. I realized that for my previous prints I used 100 or 60 grit. Now I'm using 60 grit and my prints are working again.

For more information go here
http://helpme3dprint.com/blogs/news/13574674-printing-abs-without-a-heated-bed

https://www.youtube.com/watch?v=_TmWzsvtYRA

The filament used in this print came from http://www.ORDSolutions.com

The amazing 3D printing software used in this print can be purchased at http://www.simplify3d.com

Please comment!

Thanks,
Malcolm