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This is a bit like how all woodworking magazines have endless articles about things you can do in your home woodshop to improve it, keep it tidy, etc.
They have so many of those types of articles a casual reader might think if you didn't have that hobby in the first place, you wouldn't need to spend so much time doing that sort of thing...you'd swear that's all people do in their woodshops...very meta.
So here's a challenge: Design and 3D-print your own 3D printer...
Nope. That needs metal, not plastics: you are talking about very fine control of movement, and any lack of rigidity shows up as nasty defects in the print quality. You could get away with some bits, but you do need precision metalwork for the X, Y, and Z drivers.
As an aside, have a look here: Fixed Gantry CNC Router Build Part 1 - YouTube[^] - it's a "metalworking 3D printer" being built from scratch (by a very talented individual). It should help to explain some of the problems with printing a printer!
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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Government can give you nothing but what it takes from somebody else. A government big enough to give you everything you want is big enough to take everything you've got, including your freedom.-Ezra Taft Benson
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
"A quantum odyssey from the tip of a pen to the dark side of human knowledge:" [^]
Machado’s film draws on 40 years of quantum research – not to mention significant advances in 3D rendering technology – to drill down to the unfathomably small scale of 10-33 metres, brushing up against the limits of human knowledge and imagination. The mindbending animation uses a framework of quantum gravity in which a gravitational field exists at these smallest conceivable scales.
I feel even more insignificant.
«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali