@Akisame - I have some similar issues. Hotend disampled and resampled. First test cube is ok (just needs little fine tuning) and next print gets a really bad first layer and in about 15mm hight the hotend begins to scratch... My last try of a heattower failed after 3 temp-layers (220-210°C) by glogging. The overhangs show me that the temp is too hight. btw: with 220°C set I measured 196°C with my infrared thermometer at the nozzle. I think I also have to give the belts little bit more pressure and maybe degree the acceleration a bit because of layerjumping And a little success: my chamber fan is working fine ^^

@Johannes Weis ok i'll try this afternoon

@Johannes Weis not sure ATM but I think 3mm with 50mm/s or something like this. Don't had calibrate it yet.

@Johannes Weis ok sounds logical ^^ I have also some abrasive filaments but don't print them on the proforge atm. They are too expensive for testing^^

Ok I know that stell nozzle is more for abrasive filaments. But thought maybe the brass nozzle have a bad quality. But if your nozzles are OK and print well I'll use brass...

@Frederik Weis thank you again for your fast answer. I thought about a new nozzle yesterday but haven't replaced it yet. Do you recommend to use a steel nozzle? This hint with the cans sounds good. Will try it later!

I printed the first layer (225°) with 130% flow and there are still gaps (with 100% just thin strings). All other layers are printed with 220° and 95%, at a height of about 15mm the nozzle begins to scratching on the print-object. But the layers do not stick on each other (not well in z and really bad in x/y). The ready cube fits nearly in x/y (less then 0.1mm under 20mm) but z is with 20,35mm too high... My bed is leveled, ubl was successful but the nozzle is scratching in the right front corner area. I have no idea which values I should change without making one of the other worse...

@Frederik Weis I heard a scratching while printing the upper layer so I think you are write^^ after work the fine-tuning can begin (:

First successful print! @FrederikWeis: You are right. I'm from Germany ^^ but don't have Skype... I changed some stuff in the configuration.h from the marlin folder of your github-version like steps per mm (really wrong values with 40/40/800/68), probe, bedleveling and some other points. In my case it works. More tests tomorrow.

@Frederik Weis thank you for your help so far. Z steps/mm are now set to 400; x/y to160. That were my initial values and I think it works. Now I have a homing issue in z. If I start Z homing the bed goes down with 2 short breaks but never go up. I disarmed steppers and manualy drive upwards to the sensor area. But same result. Is it possible that I had chosen the wrong configuration.h from your github? There was one in the main folder (folder named with version number) and one in the folder named "Marlin". I used the last one. Your version solved the problem with mirrored x/y direction. In the version from the proforge github, I can level the bed but the axes are wrong ^^

@Johannes Weis can't tell you the serial number because i'm at work but I compared it while unboxing with the manual and built them in like in the manual shown. Think it's really just the steps/mm value in the maschine settings. After setting x and y from 40 back to my first value (160steps/mm) x and y do what they should. Just z moves to far with 800 steps/mm.

Ok if no one else can say me the steps I'll install the original version to look it up my self ^^ The steps should not be depending in the firmware. The value 'Steps per mm' says how much steps a specific stepper have to make to move one of the axes 1mm. So it depends on the stepper model and on the thread (or tooth distance of the belt) so if you got the same printer as me, the steps should be the same no matter what firmware. Please give a hint if I'm totally wrong with this

@Johannes Weis where can I find the standard values? like I said, i think 160 steps was in x and y but I don't know z. After installing the firmware from your github the steps in x and 4 were set to 40 and the axes are moving just e little. I set this back to 160 and it seems to be OK but z is moving to far... think it must be 320 steps (not 800 like in my firmware). Can you please write me what value you have for z steps in the software settings?

I mentioned that x was 2.5mm crooked. Don't know why... Without the belts I loosened the screws from the gantry and move the gantry against the carriage stoppers. In this position (after measuring) I fixed the screws again. After fixing the belts the difference is now about 0.4mm. I think this is still much but after first tests I can't see "ghost steps". @Frederik Weis Is it normal that I have to recalibrate the steps of all 4 steppers? Or have I chosen the wrong configuration.h? Think x and y was 160 in my original setup don't know what z was but (it's now set) is too much ^^ Can anyone tell me the z steps please?^^

@Frederik Weis ok thanks for the hint. I have the display firmware from the proforge 3 github. Is this the right one? Is it necessary to upgrade the display again after uploading the firmware to the board? Don't think so but I ask to be sure^^

@Frederik Weis Hi! Today I downloaded your firmware and tested it. There is a configuration.h and configuration_adv.h in the main folder ans one of both in the marlin folder. I deleted the first ones because i get an errorr in VSCode. Now I have your firmware but I get an error when booting "failed to enable Bed Leveling" but I think it's not such a big thing... The axes are moving in the right direction (better than before 👍) but the "side jumping" when moving is still an issue. I tested my x/y motors at z pins and they work both fine and make the same steps with loosen pulleys. Now I take some suspension from belts and I'll see what will happening^^ If this makes no changes I think about fully desampling the top and resampling it...

I'm at work for now but I'll try the firmware and some other stuff (higher current second time, xy- motors on z-pin...). I think the belt could be a problem too. I had no core-xy (or core-yx^^) before the proforge so I don't have a feeling for how to best get along with the two belts.

Again. I want to test if my x and y motors are OK. Z motors (and all 4 drivers are OK). I could probably loosen the belts and connect x and y motor to z pins on on the board. If I than drive in Z both x and y should turn the same distance.

I want to test the steppers, not the drivers. The drivers are OK, I tested this yesterday and write this here (some posts up) ^^

Don't want to resample the hole bed to get the two z motors free (of each other).