Regular maintenance messed up my printer!

Yesterday I updated my firmware to the latest version of Marlin, ran PID on bed and hotend, disaasembled hotend and cleaned it out, and leveled the bed (which I hadn't done for 3 months due to my nylon nuts holding the bed perfectly level). The only setting I changed was z axis feed rate from 1mm/s to 2mm/s. I have attached a picture of my test cube. All other print settings are the the same.
picture

Edited 1 time(s). Last edit at 10/17/2015 11:03PM by gmckee.

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Prusa i3 Rework - Ramps 1.4 - E3d Lite6 - Full Graphic LCD Controller

You did not say if you used your old EEPROM settings in the new firmware or if you just flashed a clean version.
If not spefically designed for your machine you will always have to do some tuning.

Did you use slic3r? Did you update it recently? V1.2.8 onwards has a problem with narrow walls overextruding.

Did you try reverting back to the od fw? It may have introduced some problems.

I used same firmware settings and double checked using the prusa calculator. I have been using cura as slic3r would export gcode for a while. I'll try old firmware after I hook up the old computer I have it on

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Prusa i3 Rework - Ramps 1.4 - E3d Lite6 - Full Graphic LCD Controller