I am close to having my machine running properly with a
Max6675 thermocouple module and a
TinyOLED display controller with micro SD card. I am running with RAMPS 1.4.
To get the Max6675 working without bootup errors, I have loaded the latest development version of Marlin. All now works as it should except that whenever I am printing from the SD card, the printer freezes mid print. When I print from the computer (not using the SD), it prints fine without freezing. I have trawled thru everything I can find about SPI conflicts between SD and MAX6675 but haven't come across the answer yet. Has anyone else cracked this nut yet?
If I can't solve it soon, I will switch back to a thermister. I had the same issue with the reprepdiscount graphics smart controller too, so it is not specific to the TinyOLED setup.
Edited 1 time(s). Last edit at 06/20/2015 05:33AM by n.glasson.
My Prusa Mendel i2 inspired Repstrap with welded steel frame: [
youtu.be]
And my Smartrap derived Briefcase 3D printer: [
youtu.be]
