calibrating with pc, tweaking only in software settings?

[xonegon 0]

Hi,

I'm planning to build myself an Ultimaker in October with this workshop, tough I have some questions I'd like to have answered first.

The printer would be connected to an Ulticontroller and print in a seperate room apart from the iMac.

Is it so;

- that the first time you will need to hook it up to a computer for calibrating ?

- after the first calibration, you can transfer/copy the settings to another pc and program there, aswell as making all the tweaks?

Also, how trustworthy is it to let an Ultimaker print overnight, or when not at home ( risk of fire or self-damaging machine) ?

thx ahead !