Heating failed

[mtm88001]

Using repetier host, heat hot end up to working temperature. Start a print then select kill print. Start print again before the extruders cool off below the cold extrusion prevention setting. Heating fails and requires reboot of Ramps board. This behavior does not happen in Release firmware. I have been able to duplicate this behavior on the RC branch as well as the RCBugFix

[jbrazio]

Do you have the USE_WATCHDOG flag set ?

[jbrazio]

Btw, when you say "heating fails" what appears in the screen or in the serial console before locking up ?

[mtm88001]

yes I have watch dog set. I get the error message heading failed on lcd,
as soon as I get a chance I'll re run and copy the console output.
On 6 Mar 2016 04:10, "João Brázio" [email protected] wrote:

Btw, when you say "heating fails" what appears in the screen or in the
serial console before locking up ?

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[jbrazio]

Please have a look at #3077.

[jbrazio]

But this could be another bug, when possible I'd test it in my printer. Which Marlin version are you exactly using ?

[mtm88001]

I have tried this on both the RC3 and RCBugFix
configH.zip

[thinkyhead]

@mtm88001 I think I might have a solution. In the function disable_all_heaters change these lines:

target_temperature[NR] = 0; \
. . .
target_temperature[0] = 0;

to

setTargetHotend(NR, 0); \
. . .
setTargetHotend(0, 0);

[mtm88001]

Thanks, I'll give it a try and report back
On 11 Mar 2016 07:02, "Scott Lahteine" [email protected] wrote:

I think I might have a solution. In the function disable_all_heaters
change these lines:

target_temperature[NR] = 0;
. . .
target_temperature[0] = 0;

to

setTargetHotend(NR, 0);
. . .setTargetHotend(0, 0);

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[jbrazio]

@mtm88001 Now that #3132 has been merge to RCBugfix. Did you had the opportunity to validated if the issue has been fixed ?

[mtm88001]

not yet, I'll test Monday as soon as I get a chance. Thanks for looking
into the issue.
On 13 Mar 2016 14:46, "João Brázio" [email protected] wrote:

@mtm88001 https://github.com/mtm88001 Now that #3132
#3132 has been merge to
RCBugfix. Did you had the opportunity to validated if the issue has been
fixed ?

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[mtm88001]

downloading the latest rcbugfix, I was not able to reproduce the heading
failed error. I did a test print and at the end of the print, the z axis
reversed and sent the head into the bed. haven't had a chance to repeat yet.
On 6 Mar 2016 04:08, "João Brázio" [email protected] wrote:

Do you have the USE_WATCHDOG flag set ?

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[thinkyhead]

Feeling pretty confident about this one. And… RC4 is out!

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