This problem seems to be fixed with a change in z axis feedrate (thanks obewan). Several prints later and all is well.by searcher 205 - Prusa i3 and variants
Quoteobewan try changing Z homing too #define HOMING_FEEDRATE {50*60, 50*60, 2*60, 0} // set the homing speeds (mm/min) after uploading new firmware update eeprom by sending following G code to printer M502 M500 Thank you so much. It seems to have worked so far. All prints (2 of them) came out perfect, no noise on startup, and homing seems to be working now.by searcher 205 - Prusa i3 and variants
On my GeeeTech 3b pro, the home position seems to be constantly different. I set the bed (bed and extruder fully heated for ABS) and tried to print. It failed (see my other problem in previous post). I don't know if this is related, but I just fired it up cold and homed it. I checked the bed and the extruder was so close that it was striking the glass when I tried to move it. This isn't a new proby searcher 205 - Prusa i3 and variants
#include "Marlin.h" #include "planner.h" #include "temperature.h" #include "ultralcd.h" #include "ConfigurationStore.h" void _EEPROM_writeData(int &pos, uint8_t* value, uint8_t size) { do { eeprom_write_byte((unsigned char*)pos, *value); pos++; value++; }while(--size); } #define EEPROM_WRITE_VAR(pos, value) _EEPROM_writeData(pos, (uint8_t*)&value, sizeby searcher 205 - Prusa i3 and variants
I have a GeeeTech 3B Pro. After bed leveling and Z axis carrier leveling, the bed heats and everything homes correctly. Next the extruder positions for start of print. As a last step before printing, the z axis rods make a really bad noise and they appear to rotate and in a bind. The right threaded rod appears to try to lower the extruder while the left tries to raise it. I recalibrate the bed anby searcher 205 - Prusa i3 and variants
Thanks for the response. There are no voltage reducers attached. The board output (Zmin end stop disconnected) is 4.7 VDC on the sig pin (according to the schematic) and 2.8 VDC on the + pin (according to the schematic). The + pin goes to 4.7 VDC when the end stop is activated. That is the same on the other end stops as well.. All pullups are set to false in firmware. I will see what changes whenby searcher 205 - Prusa i3 and variants
I have a LJ18A3-8-Z/BX NPN NO proximity sensor (orange tip) that I am wiring to a GT 2560 board. Right now I have the blue lead to fan 3 connector gnd, brn lead to fan 3 pos (12 vdc), and plan to hook the blk lead to z min sig connector. When I test the probe, I show .078 vdc when open (no led) and 4.7 vdc when closed (led on). Now for what has me confused. First, I thought that NPNs needed resiby searcher 205 - Prusa i3 and variants
posted wrong forum. i apologize.by searcher 205 - Smart_Rap