220x220mm Flex Magnetic Build Plate Print Bed Tape Hot Bed Sticker Build Surface Tape for Wanhao i3, Anet A8 A6 Prusa i3 3D Printer

Really like this

Not sure what I expected for the money. This is two large squares of the stuff fridge magnets are made of (soft flexible magnets). They stick to each other, yeah. One of them has some buildtak like stuff on one side. The other has some 3M adhesive on one side. Who knows, maybe you can print well on it. But it seems like one big insulator to me. Not to mention, the magnetism is pretty weak to begin with. After heating this to 60-70C for some PETG printing a few times...Well I'll be surprised if it lasts.

Worked perfectly on my Ender-4 with one simple modification. If you have the auto bed leveling installed you will want to add 5 2x2 pieces of foil tape to each corner and the center onto the sheet that sticks to your bed. Once I did that and accounted for the thickness of the top surface that auto bed leveling works great!

So far this has worked good. Already has a small dent in the material from two prints but I don’t think it’s going to change the quality of the prints. I use it on my Anet A8 and it’s fits the heat bed perfectly. Clean the heat bed with 91% hydrogen peroxide or stronger before applying.

First, the major problem. The mat split during normal bed temps. The top and the bottom separated resulting in the top layer of the mat curling up around all edges by about an inch inward, making the bed unlevel. This was with 60-65 degree bed temps printing PLA with about 10 hours of use. Besides this problem, the surface was better for first layer adherence vs the one included from Wanhao.

Two prints and the print surface is already falling apart. I would not recommend that all even at the low price.