Thick Glass, Thin Glass, Borosilicate Glass! What should I use?

[gmay3]

I'm also using "I don't even know what type of glass this is" glass from the hardware store. It's about 3mm thick and was really cheap. I've had my hot end drive right down into the glass during my initial endstop setting and definitely thought it would have broken, but it didn't.

I've had no issues with sticking using 3 dollar glass and the Garnier Frutisse Extreme Hold 5 that Colin recommends and it surprisingly smells more like fruit than harsh chemicals.

The hardware store will give you the glass sharp but you can buy some emory cloth (looks like a sandpaper version of window screening) and fix it to a wood block or use a handheld radial sander. Also, you only need to take the sharpness out of the edges of the glass so you don't have to put a 1mm chamfer on it like I had imagined.

If I paid 28 dollars for a sheet of borosilicate glass, I'd feel like I've been taken advantage of.