3D Printing

FDM in a nutshell

FDM  3D Printers are very simple machines, what amount to a hot glue gun  attached to a robot sliding around a platform, squeezing out molten  plastic in a pattern to produce an object. The biggest benefit to this  technology is the low cost of materials and the wide range of available  plastics. If you are looking for something usable but not super  detailed, this is the technology for you. 

FDM  printers are useful for car interior parts, workshop organizers, fidget  spinners, custom electronic casing, and other low-detail work.

MSLA for dummies

MSLA  printers use a vat of plastic goo (ultraviolet reacting polymer resin)  and a UV LCD screen to flash lights at the goo vat to produce the model.  The benefit is you can get some very detailed prints faster than FDM  printers, but the material costs are higher, and the variety of  materials are more limited. MSLA is great for artistic models, jewelry  casting, mold making, and other fine detail work.