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X Y minimum speed

RismyhrRismyhr
in Motor Control
Hey! I have a laser module on my 3d printer. Its 2.5W and I cant get it slow enough to cut 3mm mdf. Where to adjust minimum feed per min? 
I tried different speed,  f100, f10 and f1. Nothing changes. Over f200 its speeds up :#

Comments

  • RepetierRepetier
    Did you already try 1.0 version? I think there you can set a lower minimum speed now. Problem is that the acceleration algorithm needs a minimum speed for stability. So you should set xy jerk higher then your minimum speed.

    In version 2.0 I will use a different speed approach where we have no artificial limits, but that will take a bit.
  • RismyhrRismyhr
    Repetier said:
    Did you already try 1.0 version? I think there you can set a lower minimum speed now. Problem is that the acceleration algorithm needs a minimum speed for stability. So you should set xy jerk higher then your minimum speed.

    In version 2.0 I will use a different speed approach where we have no artificial limits, but that will take a bit.
    Thanks for quick answer! version of what? Repetier? I have v.2.0.5. where do I get older versions?
  • RepetierRepetier
    I mean the firmware since we are in firmware section. This is a pure firmware problem that it enforces higher speeds.
  • RismyhrRismyhr
    Okey. Thanks! on my firmware i run 0.92.9 i think. Is there a version 2 to try. I see there is v.1.0.0 dev. 
  • RismyhrRismyhr
    Thanks again! I can cut superslow with v.1.0. I dont know i understud xy jerk max. If I print in 80mm/min i need to set the jerk higher than 1.4mm/sec?
  • RepetierRepetier
    2.0 is to come, so 1.0 is best to use for now. 

    es set jerk to 10 or 20 an dit should allow slow speeds because they can be reached directly without acceleration.
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