It is a bit of a matter of good roleplay, I think. If you play well and interesting, you don't have your character just know everything. But players cannot be expected to remember exactly what their char experienced and what not. So it's a matter of how well you are as a player, not a matter of illegal or legal play. Only in extreme cases (e.g. sharing maps) should the PD intervene - not in basic cases.
Be reasonable.
Maybe your character would figure out how to make a hammer or know that a saber is made of steel right away, but would an average 20 year old know how to make an oven? In most cases no.
It's up to the players to know what their characters have learnt through-out their lives. Did your character ever witness a glass oven being used after spawning? Then it likely knows what it's used for.
Did your character see a glass oven before? Then it likely knows what's needed to put it together.
In any other case the character should likely either A ask how somethings done. B learn by watching. C Invent or experiment.
(*hmmm...*)
you're cleverer than me if you made sense of that sentence...) or alternativly, give them names, so that they are all ambiguous, and each character would then have to ask about or build a machine to learn it's use