Hello! Recently upgraded my SV04 to the newest 1.14.6 (also tried 1.14.3) and have an odd issue. Maybe @Bjoern or others have a fix?
When i print a 2-material (both PLA, just different colors), it will hang after when changing extruders sometimes - more frequently than not. It will pause as if waiting for temps to rise, though temps are all back to set temp (190). If i go to Adjust, then change the temp to something higher (like 200), it will raise the temp, and still not continue printing. If i go to adjust and set the temp back to 199, it will immediately begin printing. Happens with both sides. In another instance, i set all temps (initial, normal, final, standby) all to 200 – same behavior, still hung up when switching extruders. on that one, if i dropped to 199, no print. When I raised to 205, printing resumed.
So it’s getting hung trying to adjust the temps it seems. The only real issue i had with stock firmware was it failing to save all the level settings – but the tram and 8x8 on this firmware is very nice. I have no opposition to other firmware versions, but if everyone isn’t having this same issue there must be a fix for it…
Any help? Thanks!
I cannot upload the gcode attachment as a new user, but i can provide a sample gcode. i tried on a couple different files.
Hello Why5148 & welcome to the forum!
Judging from your problem description it seems that PID-tuning should solve the issue.
I would recommend to run the tuning process with separate target temperatures according to each filament printing temperature for the respective nozzle.
Thanks to both of you for the quick help. I had actually found that thread and the solution there seemed too complicated to be relevant (after doing it, it wasn’t all that bad)
I ran through the PID process here:
Modifying those instructions on the M301 command step to add E0 and E1 respectively. The PID values were definitely different.
I ran the calibration at 215 degrees (that was the example). I’m printing at 205 (usually print at 190. Will that matter much?
Right now, i’m printing at 205 (175 wait temp) – on layer 5 with no hiccups! fingers crossed, this is further than i’ve gotten so far!
Successful print after the PID tuning!! Thank you!! With that working I love the work you have done on this firmware. Vast improvement on the stock 1.1.0!
Hello Why5148,
thanks a lot for your feed-back. The next release of my firmware version will bring a functionality for PID-tuning without needing a USB connection to a host system. I intend to release it in 2024…
/R
Björn
Looking forward to that. I just had the same thing happen with my printer but the pid tuning wasn’t the problem (some issue with the slicer but it went away after I messed with the extruder switch code)
(after doing it, it wasn’t all that bad)