Facing layer shift after 3-4 hours of print

[Sineos]

To add: You might be thinking from the perspective of the stepper driver: Here it is true, the driver needs to be able to supply the double current and it will produce significantly more heat.

So if you have a weak stepper driver or insufficient cooling, you might have to reduce the current to protect the driver.

But this then is at cost of the available torque of the stepper motor

[Sineos]

@bentech4u

i will try to increase microsteps too, will this make any overload or heat on my stepper driver ?

Increasing the stepper’s microsteps mainly has the effect of increasing the load of the printer board’s MCU. So if you reach the limit of the processing capabilities of your board due to excessive microstepping a Rescheduled timer in the past error will be thrown

[bentech4u]

i have changed to 64 and started a test print, Initially the print temperature was bit high(220) as i don’t know the filament temperature, even nothing was written, that time banding was there,

later i reduced temperature to 200, and the print became smooth.

[bentech4u]

here is my final result,

Conclusion:
increase steps to 64
increased stealthchop_threshold to 999999
increased run_current to .900 and 1 for extruder.

and the correct temperature for the filament i choose .

Thanks a lot @Sineos and @mykepredko

[gene1934]

my similar problems with an sp5 turned out to be a bad motor on the X side. and only their motor fits due to the length limitation imposed by the frame construction on this printer. however to check, I’d first swap out the xy drivers as a check, much easier to do.
hth.
Cheers, Gene