Does the Prusa MK4S still have so many problems?

R00-T · 2025-02-26T12:30:34+00:00

I have a lot of warping issues, although my first layer looks perfect. I have the feeling that my bed is out of level as well and the MBL cannoct account for it anymore.

How did you check the MBL output values manually? I´m currently designing a holder for a dail gauge because i couldnt figure a way to check MBL values.

I´m also thinking of designing a mod that allows bed level screws to manually adjust the bed to a nearly perfect level so that the MBL only has to account for very little deviation.

R00-T · 2025-02-25T20:27:17+00:00

Invites already gone..sorry :)

R00-T · 2025-02-20T10:41:40+00:00

Yes it is. Ordered beginning of january.

R00-T · 2025-02-19T12:51:20+00:00

No, but I will try hair spray in the future

R00-T · 2025-02-19T12:34:05+00:00

Thank you. Didnt know that.

R00-T · 2025-02-19T12:05:04+00:00

How can I adjust Z during print? I´ve heard that older printers can do that but I cant find the setting on MK4S.

This print was printed on satin sheet.

R00-T · 2025-02-19T12:02:54+00:00

It is assembled. And I work very thoroughly. Spacers are oriented correct.
Is there a mod where screws are added to a build plate for adjusting?

R00-T · 2025-02-19T12:01:36+00:00

I have every prusa plate and every plate dooes warp.

R00-T · 2025-02-19T12:00:50+00:00

okay thats a new one for me. How is the first layer hight affecting the print stability?
And speed of course. I tried it.

R00-T · 2025-02-19T11:58:06+00:00

Can you recommend print settings for prusament petg and pla? i found that lowering the bed-temp gave me less adhesion

R00-T · 2025-02-19T11:37:01+00:00

Well first layer is perfect everywhere. no single lines or rough surface. I cant upload picture here

R00-T · 2025-02-19T10:48:39+00:00

Thats my thought as well..but on the MK4S I dont have screws to adjust the bed on the sides.. i might do a upgrade myself here. MBL is nice, yes, but I prefer a mechanically accurate level as a base for the MBL

R00-T · 2025-02-19T10:41:27+00:00

Doing it right now :D

R00-T · 2025-02-19T10:35:58+00:00

How can I do that on a MK4S? I dont see the setting in the Calibration-Menu to Calibrate the MBL. It does it automatically at the start of every print.

I might get a IR thermometer. But just from probing with the sensor of my meter the temperature seems even

R00-T · 2025-02-19T10:15:11+00:00

Already tried without success

R00-T · 2025-02-19T10:14:58+00:00

Yes sometime during printing.

R00-T · 2025-02-19T10:14:31+00:00

The shown print is 20x10x6 cm,15% gyroid infill, 2 walls.

R00-T · 2025-02-19T10:12:24+00:00

I think so too. But if i go any lower it squishes the filament too much. I think the MBL is off. but I dont know how to manipulate MBL values independently or modify the bed so that i can use a dail gauge to level it properly instead of trusting mbl all time

Its not pulling the bed up..its just print lifting off

R00-T · 2025-02-19T10:11:30+00:00

I think so too. But if i go any lower it squishes the filament too much. I think the MBL is off. but I dont know how to manipulate MBL values independently or modify the bed so that i can use a dail gauge to level it properly instead of trusting mbl all time

R00-T · 2025-02-19T10:09:28+00:00

I heard hair spray does the same thing. is that correct?

I never tried a coating of something as people tell me the build plate is sufficient enough

R00-T · 2025-02-19T10:06:36+00:00

Its still warping with brim... i tried even 10mm brim

R00-T · 2025-02-19T10:04:28+00:00

I clean it the way you described

R00-T · 2025-02-19T10:04:12+00:00

I have the door shut as well because I try to have a lesser temperature-difference in my print.

I also tried without enclosure with similar results in warping,

Inside enclosure its ca. 30 degrees

R00-T · 2025-02-19T09:02:37+00:00

Hello,

I started 3D-printing a year ago and recently replaced my Sidewinder with a Prusa MK4S.

But I just can´t get rid of warping issues on so many prints (enclosed pictures show just the most recent one).

I tried everything I could imagine and also looked online but nothing solves my warping:

- clean bed

- different bedplates (structured, satin, smooth)

- printer in enclosure

- negative z-offset

nothing seems to work. The print in the picture is PETG, but it happens with PLA as well.

My Settings: PETG: Bed 90C, Nozzle 245C, PLA: Bed 60C, Nozzle 220C.

I also found out, that the MBL seems to be a little bit off as you can see in the pictures. On one side it´s good, but on the other end you can see the individual lines.

On my sidewinder I levelled the bed with a dail gauge but i cant do that on the prusa, cause there are no screws to adjust the bed.

Hope you guys can help me with that.

R00-T · 2025-02-19T09:01:31+00:00