How to Adjust Crash Sensitivity - Hardware, firmware and software help

RE: How to Adjust Crash Sensitivity

who1sjoe — Sat, 11 Sep 2021 11:08:30 +0000

@karl-herbert

I use the FW 3.10.1 and have a MK3S+

RE: How to Adjust Crash Sensitivity

karl-herbert — Sat, 11 Sep 2021 11:03:17 +0000

@who1sjoe

Which FW version and which printer (MK3 or MK3S)?

wbr,

Karl

RE: How to Adjust Crash Sensitivity

who1sjoe — Fri, 10 Sep 2021 17:26:31 +0000

@karl-herbert

I have a similar problem. Is it possible that you can also help me with the definition of TMC2130_SERVICE_CODES_M910_M918?

Thanks in advance

RE: How to Adjust Crash Sensitivity

karl-herbert — Thu, 13 May 2021 10:30:04 +0000

@gmbarton

glad it helped temporarily. I would still check the mechanics of the axles for irregularities.

RE: How to Adjust Crash Sensitivity

gmbarton — Thu, 13 May 2021 05:47:40 +0000

Success!

With the modified firmware, I set the Y sensitivity to 7 and successfully ran an ABS print that was 40mm tall. In 3 previous attempts, it would keep "crash detecting" around 1mm height and I was unable to get it to progress any further.

Thanks @karl-herbert!

RE: How to Adjust Crash Sensitivity

karl-herbert — Wed, 12 May 2021 19:09:56 +0000

@gmbarton

sent you a pm!

RE: How to Adjust Crash Sensitivity

gmbarton — Wed, 12 May 2021 17:06:46 +0000

@karl-herbert

I used Visual Studio Code on Windows 10. The firmware I'm trying to modify is MK3S 3.10.0.

Thanks.

RE: How to Adjust Crash Sensitivity

karl-herbert — Wed, 12 May 2021 16:55:21 +0000

@gmbarton

Which editor did you use to make the changes? Originally this should look like this (3.8.1):

/*!
### M915 - Set TMC2130 silent mode M915: Set TMC2130 silent mode
Not active in default, only if `TMC2130_SERVICE_CODES_M910_M918` is defined in source code.
*/
case 915:
{
   tmc2130_mode = TMC2130_MODE_SILENT;
   update_mode_profile();
   tmc2130_init();
}
break;

/*!

Which firmware version exactly do you need (MK3 3.10.0 or MK3S 3.10.0....or an older version)?
I could provide you with the changes.

RE: How to Adjust Crash Sensitivity

gmbarton — Wed, 12 May 2021 15:30:09 +0000

@karl-herbert

Thanks for the video! This clearly explains many things I was missing in recompiling the code. Now I get this error in Arduino when I check firmware.ino in Arduino

Because I have activated TMC2130_SERVICE_CODES_M910_M918, what do I need to include as arguments for tmc2130_init() ?

Arduino-error.PNG

RE: How to Adjust Crash Sensitivity

cwbullet — Wed, 12 May 2021 02:26:28 +0000

Posted by: @gmbarton
I'm getting a lot of Y crashes for no apparent reason. The belt status is good (264).
I've heard that the crash sensitivity can be reduced with the line
M916 Y5 ; reduce y crash sensitivity, default 3 max 63, higher numbers less sensitive
But then I read that TMC2130_SERVICE_CODES_M910_M918 must be enabled for the M916 code to work. How do I do that? Does that change need to be made to the firmware? If so, how?
Any help will be appreciated.

I had a lot of crashes on one printer. I turn off the detection. It went away after I reinstalled the firmware. It now works with the crash detection turned on.