How does a typical 3D printer build an object?
AnswerLayer by layer
Most 3D printers deposit material one thin layer at a time.
Tech · Facts & stats
Maker facts & stats
7 fact-checked facts about making, DIY projects, 3D printing and hobby electronics, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What does a hot glue gun use to work?
AnswerHeat to melt glue sticks
It melts solid glue sticks that harden as they cool.
Going deeper
Which open-source microcontroller board, first created in Italy, is a maker favorite?
AnswerArduino
Arduino began at a design institute in Ivrea, Italy.
Which common 3D-printing plastic is made from plant starch such as corn?
AnswerPLA
PLA (polylactic acid) is made from renewable plant starch.
The Raspberry Pi was originally created mainly for what purpose?
AnswerTeaching computer science in schools
The UK foundation behind it aimed to boost computing education.
Expert level
What does CNC stand for in CNC machines?
AnswerComputer Numerical Control
CNC machines follow coded instructions to cut or shape material.
Traditional electronics solder was an alloy of which two metals?
AnswerTin and lead
Tin-lead solder was standard before lead-free alloys spread.
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