BIQU N-O Resin Build Plate+Magnetic Sheet,196X126mm Resin Flexible Steel Plate Flex Bed for Elegoo Saturn V2 3D Printer (7.7X5inch),sliver

Es del tamaño perfecto y facil de instalar, solo hay que clarificar que se necesita observar el tamaño de la placa de construccion, no el area de impresion, sin embargo ese fue error mio, al creer que son el mismo concepto.

I bought this product, slightly skeptical as I know magnetic force can be somewhat touchy depending on surface area and adhesion can vary based on surface preparation and the quality of product used. This product came in with 3M, chemical-resistant tape and has more than enough surface area to hold the steel plate to the build plate without any issue.Reviewers who have had the plate fall into the vat or come off in any way must have done something wrong as I cannot see any straight-pull force breaking the plate free from the magnet as I sometime struggle to remove it even when I am trying to and from a corner. The Saturn's bed has a blasted finish so the surface is less than ideal for adhesion, but so long as users follow the instruction below I cannot foresee any future issues.Clean the entire build plate and head with iso. alcohol or acetone to remove any resin residue.If your build plate has any SUBSTANTIAL marks from removing prints, no matter if they are gouges or raised material, those have to be removed so break out some 600g paper, lay it flat on a hard surface, and lap your build plate back to flatness.CLEAN AGAIN with iso. or acetone if you lapped anything to remove both the grit, bed material, any anything that could have been on the paper.Heat the build plate and the magnetic sheet with a blow dryer or some other heat source for 5 to 10 mins. so that it is WARM to the touch through and through (not just for a few seconds and then cools back down).Install your build plate on the machine, upside down and tighten it well.Remove the backing paper on the magnetic sheet from just one end of the sheet, keeping it on the rest so you do not physically touch the adhesive.Lightly start the short edge on the plate and, when you t it where you want it press it down, starting from the middle and working outward.Allow the rest of the magnetic sheet to contact the build plate, removing the backer as you go, and pressing down from the middle out to release any air that may become trapped.When the entire mag sheet is laid out, take a microfiber and press/rub all over it for several minutes as both the sheet and the build plate cool. Most adhesive have a set-up period, so waiting to print for a day would be ideal, but even a few hours would be good to allow things to set-up.I began printing entire plates immediately after install and have no issues. I have also tried to work a corner of the magnetic sheet up (just to see if it would give up easily) and could not do so. This system makes printing easier and better. You may still have to scrape the prints off, but at least you are not scaping your build-plate material and removing the plate allows you to keep the head attached to the machine, saving resin, alcohol life, and reducing cleaning time.Addition considerations:The surface of this plate is rather smooth to allow prints to break free. Before I used mine I blasted it with 120g media. The blasting process creates a surface much like your stock build plate and insures that prints will stick every time without fail, but doing so makes it so you will not be able to easily break your parts off the plate. Blasting CAN warp the plate so if you do it, go slow and do both sides evenly so you do not induce too much heat.I did not try the product with the stock surface so cannot attest to print adhesion.

Update: although I got the prints to finally adhere, larger horizontal prints will warp the build plate and pull it away from the magnet during a print. (see pictures with red squares highlighting the issue). This caused the print to bend as well. I don't know if this is common with these flex plates or just this brand. Might bite the bullet and grab one of the tried and true flex sheets.Works with modification (shouldn't have to do this. Manufacturer should know about this issue)Size/area is spot on, adhesion is strong'er' (after diy), magnetism is gripping (nope, see update). Be aware, prints may not stick to build plate as it is out of the box.I got a new resin at the same time so I was quick to blame the resin. But after testing with tried and true siraya tech resin, I still had failure after failure, with just small bits barely hanging onto the flex plate. I know a too-smooth build plate can cause this so I grabbed some 220 grit, placed it face up on a flat surface and ran the build plate with flex plate across it a ton. Then repeated with 500 grit.Wa-la! I am getting repeatable perfect prints sticking to the plate.Too smooth of a build surface is a known issue in stereo lithography printing. A manufacturer of this type item should be aware and not let this happen. Still good for the price, but beware it also will cost a couple bucks for the sandpaper to make it work.

Both magnet and flex-plate are the perfect size. The magnet itself measures about 1.77mm thick and the adhesive used is 3M 9448A.The package lacks instructions, so do a youtube search if you're unclear.I used clamps to hold the flex-plate and magnet against the build-plate for 72 hours. You may hear that it'll be okay after 24 hours... just consider 3M's specifications: "At room temperature approximately 50% of ultimate bond strength will be achieved after 20 minutes, 90% after 24 hours and 100% after 72 hours."If you've already printed on the Saturn's stock build-plate, the spring-steel surface is less "grippy" than that. You may need to increase bottom layer exposure time from what you're used to for proper adhesion. Alternatively, some flex-plate users "rough-up" the surface with sandpaper. Ultimately, the call is yours.

I primarily print smaller items and hated having to raise the print and angle it with supports and a raft, just so I could get my part off the build plate. This is especially useful for flat items that before i would either damage the edge trying to scrape it off or have to lift and get artifacts from supports left behind and have to be sanded away (yes that can be reduced somewhat with tuning, but whos got time for that?).I bought 2 as I wanted the second flex plate to be able to start another print while I was able to start post processing the first print. Installation was a snap and I have had no case of the magnet sheet coming away from the build plate. I did not clamp it at all, I aligned it and pressed it on and started a print. It has sat with resin on it for a week or two at a time if I don't clean it without issue and has gone through dozens of washes in an IPA bath without coming lose from build plate.Will 100% buy more for replacement build plates or on my next resin printers.