Are 3D printing parts mechanically weak?

In general: Yes they are weaker than parts made in other ways. The problem lies with the additive process. Your part is only as strong as its weakest layer. read more

3D printing and finishing one example of each knob then making silicone molds followed by serial casting of the knobs would have taken much longer for the one-off job. I'm working on some other knobs now where a good original is at hand so it will get reproduced by making a silicone mold and doing castings. read more

This tutorial is a practical guide showing you how the Whoosh was designed and how several issues common to mechanical items that are 3D printed are solved. These issues that are dealt with are accuracy, clearance & the design of the parts themselves. read more