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Your Z switch is fine. It's your Z stepper that isn't moving.
When you first home the Z axis it moves the bed down until it hits the switch then up until it doesn't and then down until it does. If it switch doesn't respond within a certain time then you get the ER05. If it is always down then you get the "stuck" error. In both cases, many things of course can cause the error.
So to diagnose I need more info. Do none of the motors ever move? Did you not notice this back when you were getting the ER05? When you swapped X and Z motor connection did the X motor start moving but not the Z?
Some possibilities:
1) Z stepper driver broken - this is common - these stepper drivers get very hot! They work hard and can fail
2) Cables to Z stepper broken
3) Stepper broken (almost impossible - this is probably not it)
4) 24V signal to steppers not connected (common - there is a relay, K1, that can block 24V to the heaters and steppers - heat won't work either if this is the issue)
These are all very easy to diagnose since the symptoms are quite different. For example with #4 you can't get the nozzle or bed to heat up. With #1 you can swap cables to diagnose.
If it's #1 and you have an old enough printer then there is an extra driver for the second extruder but newer PCBs don't have that chip installed. It's pretty obvious since the stepper drivers are a large square chip positioned in a way that they are near and lined up to the 5 stepper connectors. If you do have an older PCB you can then remap the extra extruder driver in the pins.h file and rebuild Marlin. I can send you links to more details. If you have a newer PCB then best course of action is to order a new PCB.
By the way, it's good you did the factory reset as another possibility is that the steps/mm or the "distance to go before reporting ER05" values can get messed up and factory reset changes these back to defaults.
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In the Cura 5.8 stable release, everyone can now tune their Z seams to look better than ever. Method series users get access to new material profiles, and the base Method model now has a printer profile, meaning the whole Method series is now supported in Cura!
We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
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gr5 2,224
Your Z switch is fine. It's your Z stepper that isn't moving.
When you first home the Z axis it moves the bed down until it hits the switch then up until it doesn't and then down until it does. If it switch doesn't respond within a certain time then you get the ER05. If it is always down then you get the "stuck" error. In both cases, many things of course can cause the error.
So to diagnose I need more info. Do none of the motors ever move? Did you not notice this back when you were getting the ER05? When you swapped X and Z motor connection did the X motor start moving but not the Z?
Some possibilities:
1) Z stepper driver broken - this is common - these stepper drivers get very hot! They work hard and can fail
2) Cables to Z stepper broken
3) Stepper broken (almost impossible - this is probably not it)
4) 24V signal to steppers not connected (common - there is a relay, K1, that can block 24V to the heaters and steppers - heat won't work either if this is the issue)
These are all very easy to diagnose since the symptoms are quite different. For example with #4 you can't get the nozzle or bed to heat up. With #1 you can swap cables to diagnose.
If it's #1 and you have an old enough printer then there is an extra driver for the second extruder but newer PCBs don't have that chip installed. It's pretty obvious since the stepper drivers are a large square chip positioned in a way that they are near and lined up to the 5 stepper connectors. If you do have an older PCB you can then remap the extra extruder driver in the pins.h file and rebuild Marlin. I can send you links to more details. If you have a newer PCB then best course of action is to order a new PCB.
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