I’ve recently dusted of my Geetech Prusa i3 Pro B, and whilst i can get the dimensions of my calibration print correct and the print looks ‘ok’. I’ve leveled the bed and the current settings are:

0.4mm nozzle,

1.75mm PLA (Green)

30mm/s print speed,

HE 210ºC,

Bed 65ºC

I used slic3r for the g-code, but i print from an SD card, and get the results in the picture. I get a similar result when printing at 35mm/s or 25mm/s, i’m guessing it’s more likely to be mechanical with the X/Y Axis or vibration but i’m hoping some very nice person can help. If i’ve missed anything please ask.