I posted this on Stack Exchange already:
[3dprinting.stackexchange.com]
I'd like to repeat my question here since this is group group is more focused on my specific issue.
This is a copy of the question on Stack Exchange:
I have built a 3D printer with Marlin bugfix-2.0.x forked from github.
I am attempting to set the default value for junction deviation so that I don't have to change it through the printer's screen/interface every time I power cycle the printer, but what I thought would set it properly isn't doing the trick.
My thought was that uncommenting this in Configuration_adv.h would work:
I have tried setting this define inside of and outside of the default "if" block in which it appears (more on that below), just to make sure the issue wasn't because I didn't have something else set, and I get the same behavior when this define statement is either protected or unprotected by an "if"
Also, the default if block is this:
Uncommenting #define JUNCTION_DEVIATION leaves me with a compiler error telling me that I don't need to do that, so I'm not seeing anything that I am supposed to enable to get it to use the JUNCTION_DEVIATION_MM setting. In other words, I can't actually enable "JUNCTION_DEVIATION" any more, so I HAVE to break the JUNCTION_DEVIATION_MM setting out of the "if" but it still has no effect.
After setting this parameter, when I power cycle the printer, the junction deviation is set to 0 (although one touch of the adjustment knob makes it jump to 0.010, so I think that what is displayed as "0" may actually mean "unset"), which is causing a significant stop/start jerk on every angle change until I manually set the junction deviation.
My current Configuration.h and Configuration_adv.h are here: [github.com]
Any ideas what I'm missing? I'm sure it's something simple, I just haven't found it.
I appreciate any insight anyone can give as to how I can get this setting to stick in the firmware so I don't have to set it every time I power up the printer.
In case it matters, I'm running this on an SKR V1.3 with TMC2208 drivers at 24V.
Thanks!
[3dprinting.stackexchange.com]
I'd like to repeat my question here since this is group group is more focused on my specific issue.
This is a copy of the question on Stack Exchange:
I have built a 3D printer with Marlin bugfix-2.0.x forked from github.
I am attempting to set the default value for junction deviation so that I don't have to change it through the printer's screen/interface every time I power cycle the printer, but what I thought would set it properly isn't doing the trick.
My thought was that uncommenting this in Configuration_adv.h would work:
#define JUNCTION_DEVIATION_MM 0.02
I have tried setting this define inside of and outside of the default "if" block in which it appears (more on that below), just to make sure the issue wasn't because I didn't have something else set, and I get the same behavior when this define statement is either protected or unprotected by an "if"
Also, the default if block is this:
#if ENABLED( JUNCTION_DEVIATION )
#define JUNCTION_DEVIATION_MM 0.02
#endif
Uncommenting #define JUNCTION_DEVIATION leaves me with a compiler error telling me that I don't need to do that, so I'm not seeing anything that I am supposed to enable to get it to use the JUNCTION_DEVIATION_MM setting. In other words, I can't actually enable "JUNCTION_DEVIATION" any more, so I HAVE to break the JUNCTION_DEVIATION_MM setting out of the "if" but it still has no effect.
After setting this parameter, when I power cycle the printer, the junction deviation is set to 0 (although one touch of the adjustment knob makes it jump to 0.010, so I think that what is displayed as "0" may actually mean "unset"), which is causing a significant stop/start jerk on every angle change until I manually set the junction deviation.
My current Configuration.h and Configuration_adv.h are here: [github.com]
Any ideas what I'm missing? I'm sure it's something simple, I just haven't found it.
I appreciate any insight anyone can give as to how I can get this setting to stick in the firmware so I don't have to set it every time I power up the printer.
In case it matters, I'm running this on an SKR V1.3 with TMC2208 drivers at 24V.
Thanks!