I recently switched from Sprinter to Marlin to recreate a printing problem with #GcodeSimulator & printer. Now every move (X,Y,Z ,E) feels much faster than with Sprinter, even so I still use the same Slic3r settings.
Problem is that some moves look too fast which concerns me a bit. Especially retract feels now very loud and aggressive.
Is this because the acceleration values are higher than with Sprinter ?
What are sane values for acceleration and max speed for reprap pruse i2 ?
Thanks
Marlin incorporates a feature called jerk, which is basically a maximum speed difference that can be achieved instantaneously. So when you have jerk set to e.g. 10 for a given axis and move that, it jumps to 10mm/s, then accelerates up to your maximum speed, decelerates down to 10mm/s and then stops dead. This makes moves faster and especially helps a lot with the quality of arced surfaces.
Sane values that any printer should be able to handle are (XYZE):
Acceleration: 1500, 1500, 100, 5000
Speed: 100, 100, 3, 20
Jerk: 5, 5, 0.3, 0.3
@Thomas_Sanladerer oh, my values are significantly higher:
Acceleration: 9000,9000,100,10000
Speed : 500,500,3.5, 25
Jerk 20,20,0.4,5.0
I will try reduce the values and retry. Thanks !
Afaik those are the default values for the light’n’fast @Ultimaker .
If you use the same values you used for Sprinter (and set jerk to 0), you should get the exact same results as with Sprinter.
@John_Ridley hmmm, perhaps I should switch to Marlin. I’ve only been printing with sprinter.