Oh yes, the bearings are the black ones 
German:
Ach ja, die Lager sind die schwarzen
Hast Du sie schon geschmiert? (Siehe “Things to do first with a J1”) Ich weiß nicht, wie es mit den SHAC-Linearlagern aussieht, aber zumindest die schwarzen scheinen alle ungeschmiert verbaut worden zu sein. Snapmaker hat nur etwas Fett auf die Schiene geschmiert - das nutzt aber gar nichts.
Did you already grease them? (see “Things to do first with a J1”) I do not know how it is with the SHAC linear bearings, but I suspect the black ones are all not greased. Snapmaker only put some grease onto the profile, but that does not help at all.
Not yet, but first the device should work again. I can’t do anything with it.
German:
noch nicht, aber erst sollte mal das Gerät überhaupt wieder gehen. Kann ja nichts machen damit.
If I adjust fan speed while printing, it keeps going after the print is done. There is no way to turn them off wich is a little weird. It would be nice with fan control in the control user interface while not printing…
Another request: I used the resume function just a moment ago, after running out of filament.
The printer primes the nozzle next to the wiper, then goes to the object, then primes the nozzle again, on top of the object. The priming next to the wiper is enough. Please get rid of the extrapriming on top of the object. It is not nessecary and looks very ugly…
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Can we get a Gcode macro added to do the performance mode on the J1 because id like my printer to be in fast mode when i print from my fast profile. especially when printing through USB since i cant make those changes from the menu on the printer or through any gcode
This should be possible as it is since AFAIK anything that is set on the display just sends Marlin commands to the controller - the only problemnis to find out which ones 
Maybe the firmware will tell more when it is released, otherwise you might need to try to read these commends by connecting a gcode terminal to the back USB port.
It would be great if you could connect to the printers filesystem through samba or webdav. That would keeping the filelist organised a much easier task. Also the possibility of creating subfolders would help in this.
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I agree. Samba would be great. Then it would be easier to copy gcode files to the printer without the need for usbdrive…