Hi..
Im using a Prusa i3 with Repetier/Marlin..
Im getting a tiny blob when starting layers..
Im not sure if its a Jerk issue... or that I need to Extrude slower..
Here are my settings for Marlin
#define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,4000,97.68} // default steps per unit for Prusa was set to 700
#define DEFAULT_MAX_FEEDRATE {300, 300, 3, 35} // (mm/sec) DERATED FOR PRUSA FROM 500, 500, 5, 45
#define DEFAULT_MAX_ACCELERATION {1000,1000,50,500} // X, Y, Z, E maximum start speed for accelerated moves. // DERATED FOR PRUSA FROM DEFAULTS 9000,9000,100,10000. E default values are good for skeinforge 40+, for older versions raise them a lot.
#define DEFAULT_ACCELERATION 1000 // X, Y, Z and E max acceleration in mm/s^2 for printing moves DERATED FOR PRUSA FROM 3000
#define DEFAULT_RETRACT_ACCELERATION 1000 // X, Y, Z and E max acceleration in mm/s^2 for r retracts DERATED FOR PRUSA FROM 3000
//
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 0.4 // (mm/sec)
#define DEFAULT_EJERK 5.0 // (mm/sec)
I'm running Retraction at -3mm would increasing the retraction help?(or does Slicer compensate and add say this 3mm back?)
Im using a direct drive Bowden extruder.... with PTFE tube, so not sure if its Hysterisis, and by retracting more..might help
So many questions ;-)
whats your thoughts?
Edited 2 time(s). Last edit at 04/23/2013 10:05AM by mrfunk.