Month: December 2011

Building the MakerGear Mosaic 3D Printer – Part V: The Extruder

Building the MakerGear Mosaic 3D Printer – Part V: The Extruder

This is the fifth installment of my series on building the MakerGear Mosaic 3D printer. This part covers installation of the “business end” of the machine, i.e. the extruder assembly, which consists of the preassembled motor and filament drive / hot-end groups, and the cooling fan. The fan and heater power leads, and the temperature sensor lead, are also connected at this stage.

Beautiful Freeform Headphone Amp

Beautiful Freeform Headphone Amp

I wrote just last week about British electronics hobbyist Rupert Hirst’s method and homemade tools for bending his own aluminum project enclosures. This artfully-soldered PCB-free headphone jack amplifier is his latest project, and it only serves to reaffirm my impression of Rupert as a man with a refined sense of the aesthetics of DIY electronics. To top it off, he knows how to take a photo, too. The copper wire was harvested from cable intended for home wiring. Looks like Rupert intends to cast the whole thing in clear resin as a finishing touch.