CoreOne + Conversion - Heater Test Fail - Heat Block
I just finished up my CoreOne+ Conversion and updated to the 6.4.0 today (from the 6.4.0rc). All has gone swimmingly well, especially the harmonic calibration for XY.
However, the Heat Block test portion of the Heater Calibration Tests consistently fails. I have checked wiring, no issues there... Here is some additional context. When watching the calibration test, it reaches 170C to 180C and then slows, and throws a failure error. If I bypass the failed calibration test, there is no issue. I have printed my first ABS print, printing at 260C and maintaining temp with no issue. Here's a thought. I'm using a copper heat block from the MK4S, not the OEM Prusa Aluminum. Can the copper's higher thermal conductivity properties mean that it takes slightly longer for the heat block to reach temp (the heat block fan is also running), thus exceeding the programs accepted thermal ramp up time?
I have an aluminum heat block on order and will replace to see if this is the issue, but want to check with the 3D HiveMind first.
If this does wind up being the cause, would a firmware feature to select between an AL and CU (or others as technology advances) heatblock be a good idea?
Thanks in advance.
~The AmishTechSupt
RE: CoreOne + Conversion - Heater Test Fail - Heat Block
Yes, copper heat blocks can cause the test to fail due to the longer ramp up time. When this happens I'm not sure there is a way to prevent the printer from subsequently nagging you to run the test without temporarily swapping it out with an aluminum heat block so the test will pass and clear the nag screen on startup.
Myself and others have requested there be a firmware option for selecting the heat block. For example: Copper heat blocks fail the heater calibration test