the z motor will go up but not down the home command it just stays in the air i can make it go downwards but only by the distance it has gone up so if i go up 20mm then i can go down 20mm it always says zero i have emailed sovol for months now working on the printer i havent been able to fix it sovol has also given up
ive swaped ,the psu , the motherboard , reflashed it , replaced the cable , replaced the printhead and probe
im not sure how this is possible even to still be broken its a entirely new printer but whatever
yes it has a 5015 fan and a printed duct in white
yes it worked at one time and yes the red wire is the 5015 fan
i did try that once and yea it didnt work the printer but i can try again
Your printer has no idea where the bed is when you turn it on.
When you “Home Z” the printer slowly lowers until the proximity switch switches on, Then the software looks at the saved Z offset and assigns the spot where the switch turned on as Z = (0+offset). Once that is set the software will NOT go past Z = 0 even if that is actually 100 mm too high.
There is a led on the proximity switch. turn the printer on and raise and lower a metal plate (pancake spatula) under it. does the light turn off and on? Do you have wires run under (or near it)
Your printer “thinks” it is at Z=0 and won’t go lower.
The ONLY component on your machine that tells it where Z=0 actually is is the probe.
1% chance bad mainboard (false probe trigger)
1% chance bad firmware (probe signal mapped to the wrong pin)
98% chance your probe or probe wiring is faulty
With the connector plugged in measure volts between the points shown in the closeup. Does the value change when the proximity switch is triggered/untriggered?
