Creality Ender 3 Max Neo Glass Bed 3D Printer Platform, 310 x 320MM Tempered Glass Plate Build Surface for Ender-3 Max, CR-10 V2, CR-10 V3, CR-X, CR-X Pro, Good Adhesion Remove Easily

I have a ender 3 s1 pro, the bed would not level, after swapping the springs out for rubber bushings, I swapped the magnetic plate out for this one, levels perfectly, so issues, securing it to the plate is kind of a hassle, you can use buttlefly clips or the clips Creality sales but getting a perfect mount is impossible, I had to clip 3 only in the back, just make sure when you install this to remove the magnetic plate from the bed using a scraper, if not it may melt to the glass and cannot be removed, luckily mine still had the backing plastic on where Creality never removed it, so it came off in a sheet

Decent enough quality for a glass bed, but I've given up and swapped to a magnetic plate as adhesion is either "none" or "pass me a jack-hammer this won't come off" with these. Honestly go buy a 3rd mag plate kit, they're way better.

Used this on my K1 Max, works perfectly with polycarbonate. The bed is very flat with a variation of only 0.3mm across the entire surface, used this as a replacement for my warped PEI bed.

I'm a big fan of glass print beds for 3D printing because they are manufactured more flat (i.e. to closer tolerances) and stay more flat over their useful lifetime than do other print bed materials . When I recently purchased a reality K1 Max, it came with a magnetic flexible PEI steel sheet which seemed to be less than flat out of the factory and got less flat with usage. This resulted in high variances in my bed leveling mesh inconsistent first layer adhesion. This glass bed fits perfectly on a K1 Max with only two minor modifications. Specifically, you'll have to a) swap out the locator pins at the back of the build surface base plate for a couple of printed guide tabs and b) use low profile clips to securely attach it. If you prefer a glass bed, whether you're purchasing this for one of the older Creality machines that it was originally designed for or upgrading a K1 Max as I did, this is a quality product, perfectly suited to the task.

Way better than just glass bed, this is a game changer, no more warping or adhesion loss, I have to buy 3 more now lol.