acceleration configuration ???

[david-ganon 2]

can sameone tell me pleas what can i configure in the acceleration option in um2?

can it make my prints faster or better looking?

 

[dieselpower 0]

Default is set to 3000mm/sec I believe. But I still have some ghosting at the moment, so I maybe reducing that.

 

[IRobertI 516]

I've reduced acceleration to 1500mm/s IIRC to get rid of a bit of ghosting/ringing. It doesn't effect print time all that much.

 

[gr5 2,070]

As both of the above posters noted - the thing it fixes the most is ringing - look at the pictures in this topic to understand:

http://umforum.ultimaker.com/index.php?/topic/2532-prevent-ringing-wobbly-surface-after-sharp-corners/?p=18006

 

It also makes the printer quieter if you lower acceleration and less shaking the table and also makes it print slower - especially if there are lots of sharp turns that the head has to make such as text. But on a real printer decreasing acceleration doesn't slow prints down too much. Cutting acceleration in half in theory could slow down print time by 30% (square root of .5 is .707) but in practice it might only be 5% if you have many long straight lines such as infill.

Cura assumes I believe 3000mm/sec/sec acceleration (or maybe 5k?) so if you go slower Cura will not correctly guess your print times.

 

[david-ganon 2]

thanks guys