Glass Bed, What and Where would you get one?

[soofle616]

Well, printed the spacer, installed the glass bed, and promptly had a horribly failed print. nothing stuck at all (i tried it with bare glass, cleaned with rubbing alcohol, printing abs). So nbd I didn't really expect it to work without anything on the surface. Busted out my glue stick and gave it a good thorough coating, let it dry, tried again. Still nothing. Cleaned off the glue stick and covered the glass with kapton tape (since the real reason I got the glass was to get away from my warped bed I don't mind if I still have to use the tape), still no dice. The purge line, second shell, and infill on the first layer all stuck but the first shell didn't so I ended up with a gap between the shell of the part and the infill. Not to mention the fill itself looked like it was separating from line to line. So my assumption here is that the glass is taking longer to heat than the aluminum bed which is resulting in my bed temp being too low. Does that make sense? If that's the case, I'm seriously considering removing the aluminum entirely and running the glass directly on top of the heater, probably secured with some sort of perimeter restraints though I would likely make them out of metal so they don't soften with heat. Any reason i should NOT do this?

Edit: having now removed the glass plate I seem to be getting the same gap between my infill and shells. Looking at the picture it's pretty clear that things are not sticking properly but why? bed temp is 110, kapton was cleaned with rubbing alcohol prior to the print being started, print temp is 230. As far as I can tell, nothing has changed other than there was a piece of glass on it and now there isn't.

2nd edit: Problem fixed. Though my bed was level apparently it was too low (thin paper from now on, no more business cards). Haven't gone back to the glass bed yet but things are printing properly on the aluminum one again so at least the "damage" has been undone until I have time to play with the glass some more.

[DrUsual]

I started printing with glass on my Dreamer a few days ago, and I'm having far, far more success with my prints not slipping than I did before. I'm actually attaching the glass via hair spray -- spray the Kapton tape, set the glass on it, then spray the glass. Someone on Reddit had made that suggestion, and it seems to be working just great. Same person also claimed that the glass will come off easily when you want to remove it, but I haven't tested that claim yet.

[KenR60]

Well, printed the spacer, installed the glass bed, and promptly had a horribly failed print. nothing stuck at all (i tried it with bare glass, cleaned with rubbing alcohol, printing abs).

Edit: having now removed the glass plate I seem to be getting the same gap between my infill and shells. Looking at the picture it's pretty clear that things are not sticking properly but why? bed temp is 110, kapton was cleaned with rubbing alcohol prior to the print being started, print temp is 230. As far as I can tell, nothing has changed other than there was a piece of glass on it and now there isn't.

I ended up getting my Glass and the Very first 1 or 2 Prints were PERFECT, excellent Gloss Finish. The Nothing Stuck anymore, I went and bought a small spray bottle of "Isopropyl Alcohol" from Bunnings, spent hours and hours Trying, then Cleaning, then Trying then Cleaning, actually spent 8 hours trying everything, Bought Hair Spray, Glue Sticks then I thought maybe the Heat of the Day might be adding moisture to the PLA I was Printing. I waited until the Sun went down and then found on my First attempt with the Glue Stick I finally got it to stick. Finish isn't as good as straight on the Glass. I have since had this happen a few times and found night time was the only time I could print. Are there people out there printing just on Glass without anything sprayed or rubbed over the Glass?

[Stigern]

I ended up getting my Glass and the Very first 1 or 2 Prints were PERFECT, excellent Gloss Finish. The Nothing Stuck anymore, I went and bought a small spray bottle of "Isopropyl Alcohol" from Bunnings, spent hours and hours Trying, then Cleaning, then Trying then Cleaning, actually spent 8 hours trying everything, Bought Hair Spray, Glue Sticks then I thought maybe the Heat of the Day might be adding moisture to the PLA I was Printing. I waited until the Sun went down and then found on my First attempt with the Glue Stick I finally got it to stick. Finish isn't as good as straight on the Glass. I have since had this happen a few times and found night time was the only time I could print. Are there people out there printing just on Glass without anything sprayed or rubbed over the Glass?

I'm printing directly, or I used to do that. Now I'm printing with tape. I actually don't like the gloss finnish, seems weird to me since it's only one of the sides :P

But when printing directly on glass it's cirital with correct temperature, I found that mine was 60C on the bed.