PETG Bed adhesion on Monoprice Ultimate 2

[Oliveros 8]

Hey Guys,

 

I've been running into an issue on and off with my 3D printer, I've had it for a couple of days and been printing pretty much non stop. I left something to print overnight and it went sideways really fast, checked on it in the morning and the objects were all knocked off the platform and the nozzle was covered in plastic, a mess.

 

So I've been doing Monoprice's PETG, printing at 230*C with a bed temp of 80*C and putting glue down on the brownish kapton (I think it is, came on the glass), I'm using a brim as well.

 

I did it like that for a bit and it would print fine sometimes, not at other times. I then tried to clean the plate and I noticed the glue got very tacky again and tried printing again where I wipe it with water right before it prints and it seems to work okay, then sometimes in the middle of the print, the object get's pulled or somehow loosens off the glass and it's all over from there.

 

It seems like it's OK sometimes and sometimes not, I've just been going by experience at this point and I'm not sure what I'm supposed to do with a glass bed but it seemed to work so I just kept doing the same thing.

 

So what should I do?