"This is the basic problem with low-end filament-type 3D printers - weak layer bonding. You're welding a hot thing to a cold thing, which never works well." Bo

"This is the basic problem with low-end filament-type 3D printers - weak layer bonding. You're welding a hot thing to a cold thing, which never works well." Bonding always works well for me and many others. The author of this story choose to use a material (HIPS) which really should still be considered experimental for most FDM printers. I've personally never had a lot of luck with it and instead choose to use either PLA or ABS with a heated chamber & with those two materials can build very strong parts with no boding problems whatsoever. Here's an example of a violin I've recently printed: https://www.flickr.com/photos/patcheudor/26263996272/in/dateposted-public/ https://www.flickr.com/photos/patcheudor/26263996272/in/date... Note that I've now printed five violins and in the 100's of hours it has taken to do so not had a single failed print even when printing thin (typically .40 mm) shells.