X and Y shift

Hey, after some hours in my print there’s a shift 225 degrees in the x and y direction. It doesn’t shift up in the z axis or down, just in the plane direction. I have added a tensioner for the x axis so the the belt seems tensioned enough, not for the the y belt but it seems tensioned enough as well. All stepper motors are set at .425 v and I switched cables to the bed since there’s an mk3a heatbed which needed modification. The cables moves in a free way.

The motors was hindered both in the y and x axis. I oiled all axis. The z axis I think still makes some sound when moving, I gotta check it out later. During the print there was a little too little extrusion, I have measured the filament now and set the extrusion multiplier to 1.1 restarted the print. So far it seems to print nicely. I had the travel rate for non prints at 100 but now I have set it down to 80. The cyclone tube which I was printing had a little pipe in the bottom which detached from the heatbed due to not enough plastic extruded. Don’t know if this had to do with the problem.

It happened 4 hours into the print of a 14 hour print.

Part attached:

filedropper.com/tratttop18rev2

At first i would suggest to set your stepper drivers to 0.55V to prevent loosing steps.
If your object has many hartd direction changes, it can help to reduce max jerk vor X/Y to 15 mm/s².
The travel speed itself is not that critical. But acceleration and especially jerk are important.

cheers,

Christian

Hey, where do I find max jerk? I use repetier 1.06

You set it in EEprom settings under config -> Firmware EEprom Configuration in the repetier host menu.
If Repetier does not show values there you have to enable EEprom config in marlins configuration.h and reflash.

It should look lieke so:

#define EEPROM_SETTINGS //to disable EEPROM Serial responses and decrease program space by ~1700 byte: comment this out: // please keep turned on if you can. #define EEPROM_CHITCHAT

cheers,

Christian

Thanks, I think I need better settings for my k8200.

This is the bottom of the filament, thickened:

This is the top, extruder have digged it’s way into the abs:

Someone have good settings for repetier slicer 1.06? And for ABS?

With my settings although the printer is calibrated good from a mechanical point of view the repetier settings are not good. Filament gets stuck every print. I think I have around 0.2 mm space between the nozzle and bed.

Ther are no “good” settings for extrusion.
Everey filament is different, even same color from same brand.

What temp did you use?
What retraction length and speed did you set?

cheers,

Christian

I have used 230-245 mostly, 245 with retraction speed 30 mm/s length 1 mm.

Heatbed 110.

With the stock hotend try retraction length 2-3mm ans retraction speed 100-150mm/s.
The temp range sounds good, depending on the precision of your temp readings.
(thermistors are not that precise at the upper range of their scale)

cheers,

Christian

Awesome. Thanks.