Made possible thanks to power of manufacturing to scale and tight specs when designing for desktop 3D printing, here is our favorite miniaturization project to date! From SolidSmack:
Abernethy, who resides in New Zealand, has been actively building miniature ‘micro-machine’ replicas of his power tools for the past year that *ahem* actually frickin’ work. While he had previously created a functional cordless drill back in March, he’s back again this week with a working circular saw that operates just like an actual full-size circular saw.
To create the saw, Abernethy turned to Onshape to design the individual parts based off of parts from his own full-sized Makita saw. Once he had a working assembly, he then printed the parts in PLA using his Ultimaker 2 3D printer with a layer height of 21-40 microns and a shell thickness of .5mm. As for powering the small device, Abernethy has equipped the saw with an on/off handle that connects to a hearing aid battery....
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