Gizmo Dorks PEI Sheet 12" x 12" (305mm x 305mm) 1mm Thick 3D Printer Build Surface Ultem 1000, Made in The USA

Buy this product! Being new to 3D printing, I tried the sheets of masking tape that came with the printer on the print bed. MISTAKE!!!What a mess. Next, the blue painter's tape route. While this worked pretty well, it kept getting torn up each time I removed a print. Then it wasusually necessary to re-tape the entire bed. That got old real quick. After reading some reviews, I decided to plunk down what I thought was a lot of money for a piece of "plastic". Boy, was I wrong. I've been using this for several days now and it has worked great. I just clean it with some rubbing alcohol before the next print and every thing works fine. I've only been using it with PLA so far and have the bed set to 60C. (although this may not be necessary), but the filament adheres beautifully and comes off very easily when done. No need to use a spatula. Things may change when I start using different types of filament, but so far I'm very pleased.

I previously used PEI sheets that included the pre-applied adhesive. I kept having to replace the sheet long before the surface was worn out, when the adhesive would age, become dry/brittle, then start forming bubbles. I ordered this latest sheet specifically without the adhesive & I am both very impressed & very pleased with the positive change in the ease of keeping the prints-in-progress attached to the bed & the ease of release on my ABS prints. I simply follows another user's recommendation & used binder clips to hold the new sheet onto the heated glass print bed on my TAZ5 printer. I would highly recommend this product for that use !!

In reading comments and experimenting I've found helpful mention of sanding possibly before first use and definitely using it with hair spray if you're printing PETG to keep it from adhering too well. I just have mine attached to the bed with binder clips as it makes cleaning and prepping the sheet easier and you can have more than one sheet prepared in advance. You can also remove the printed sheet and pop it in the freezer to cool down if you're in a hurry. Very handy. Clean with isopropyl alcohol before a fresh coating of hair spray. UPDATE: I like it even more with time. I find I don't need hairspray for PETG with a bed temperature of 60C. The same as PLA. ABS works well at 110C. TPU sticks like glue at any temperature.

Delivered on time. Worked okay holding a 3D PLA print then easy to remove print when bed cooled. Had troubles with 1/4 dowel print releasing during print. Did work with glue.

I purchased cheap knock-offs (though I didn't know it, at the time) from other vendors. The difference in performance is significant. The ONLY thing for which this sheet has been anything less that OUTSTANDING has been PLA, with a bed temperature below 60C. Even then, this sheet operates well, unless the bed adhesion surface area is small. For this, of course, there is always glue. I can't offer enough praise to do this product justice. It has been my experience that, most times, it's worth the extra "couple of bucks" to just go ahead and get the premium product. There is a reason for the "premium."

PEI is a must have (in my opinion) for 3D printing. I get great adhesion with this without needing to resort to glue, hairspray or anything else. I find that for best results, I have to print with a brim because it helps with removing the finished product. Sometimes I also have to pour a little isopropyl alcohol right next to the print/brim to help get it off, but that's okay because I use the alcohol to clean the bed anyway. You'll also want to make sure your bed is level...use a sheet of notebook paper and adjust the bed until the nozzle is grabbing at the paper. This helps "squish" the filament into the bed, giving that good grip, at least, that's what you should do for ABS and PLA. If you're printing in PETG, use a business card or a 2mm feeler gauge.

I would return this if I hadn't cut it to fit my printer bed. It is useless to me since it warps as the bed gets hot. I had 4 binder clips holding it and the corners curled up at least 1/16". The print failed as it came off the bed since the surface was curling and warping. I do not recommend this product.

This plastic sheet really does do wonders for your 3d printer. Before I bought this, I was going through rolls of blue painters tape. It was pretty crazy. After I bought this, it has become the base for a bunch of prints. I still use spray on glue, glue stick sometimes. Sometimes I just use this. But, it cleans off well and you can reuse it a ton of times. Be careful when you're cleaning it, particularly if you are scraping it because you could gouge it pretty easily. I use goo-gone and let it set for a while if I have a bunch of glue that needs to be scraped off. But, overall, this is a good, flat, long lasting, base that stands up to the heat of printing ABS, PLA, etc.