Replacing Acceleration & Jerk G-code

[l2n_pro 0]

Hi all,

Cura uses M204 to set acceleration and M205 to set jerk. My printer uses M8008 for acceleration and M8007 for jerk control. At the moment, I have to manually set global jerk and speed in the machine start g-code. Is there a way to have cura use the correct g-code commands for speed and acceleration settings in a cura profile?

[GregValiant 1,318]

There is a post processor called "Search and Replace".  You would need two instances.

 

Search = M204

Replace = M8008

and

Search = M205

Replace = M8007

 

Those will work as long as the units are the same and the parameters are the same.  Cura will use the S parameter for Accel.  Other parameters for Accel would be X and Y for each axis or P and T for print and travel.  You might have to get fancy with the regular expressions if there are numbers between the parameters.

Jerk is by axis so it always uses X Y parameters.

I think Search and Replace will start at the first layer (raft or model) but you'll need to check to make sure.

 

Search = M204 S(\d*)

Replace = M8008 P\1 T\1

Use Regular Expressions = checked

would go from

M204 S1000

to

M8008 P1000 T1000