Teacup Configtool: calibration easier than ever

Those who want to enhance their print quality often face the problem that calibration can be quite tedious. Messing through 10'000-line configuration.h files and such stuff.

Meet Teacup Firmware. It puts all its emphasis on print quality, high performance and ease of use. In the latter area it introduced now Teacup Configtool:

http://forums.reprap.org/file.php?1,file=55714

Adjust - build - upload, each with one click. No messing with files, no messing with M-codes, no messing with EEPROM (what's that?). As a nice side effect, this firmware is efficient enough to blast out some 48'000 steps/second for a smooth run on ATmega based controllers and also fits into controllers as small as an $5 Arduino Nano.

Installation and usage instructions: http://reprap.org/wiki/Teacup_Firmware#Installation Enjoy!

Can you explain this to a newb? I get that it calibrates, but what does it calibrate, and how?
Thanks.

Never calibrated your printer?

OK, if you bought an almost-assembled kit, you likely also got a reasonably working configuration with it. Still, calibration allows you to raise precision with adjusting maximum speeds, acceleration, making thermistors more precise and such stuff.

One of the more popular calibration guides is here: http://reprap.org/wiki/Triffid_Hunte...ibration_Guide If you have a working printer already, the second half of that is likely more interesting.