KOYOFEI 2PCS 3D Printer Platform for Elegoo Mars 3, Building Plate and Magnetic Sheet, Flexible Steel Plate Flex Bed for Elegoo Mars 3 Pro 3D Printer 150x95mm

Determined the issue was with properly setting my home and also setting my Z offset. Also, taking sandpaper to the build plate helped the prints stick to it. As a novice printer, I'm learning as I go. Utilizing the cones of calibration tool helped tremendously. I have a Saturn S, and I had to adjust/tweak my settings to get optimal builds and reduce failures. My adjusted settings are as follows:- Base bottom layer count was 5 layers, changed to 4 layers- Base bottom exposure was 30 seconds, changed to 20 seconds- Base Exposure time was 2.5 seconds, changed to 3.0 seconds.**One key note regarding calibration: When homing my build plate, I now use my vat and I level/home/Z offset my build plate to my vat. I add resin to my vat so that it's about 1/4th full, loosen the build plate bolts, and then home it with the resin in the vat. This is alleviating the prints sticking to the FEP.The cones of calibration takes an hour to print but uses minimal resin and will save time (in the long run) alleviating the headaches/frustrations of getting failed prints.Hope this helps, and remember, with 3D printing, slow is smooth, smooth is fast. Fast and bad is 'bad' and is a waste of money, time, and resin. All the best.------------------------------------------------------------------Executed 6 prints. All failed. Tried googling/youtub'ing walk throughs, setting adjustments, etc. with each failure to accommodate the magnetic build plate in hopes of a successful print. All prints failed. Every print stuck to the FEP. Additionally, to make sure it wasn't due to the FEP, I replaced the FEP. Prints still went to the FEP and would not take on the magnetic build plate. I will be returning these. Save your money. These are a dud. Hope this helps someone and all of the best.

Installation was very straight forward. Just make sure you clean the platform well and, once you apply the magnetic backing, lay it face down to allow it to cure for at least 24 hours (so that the clue cures and is at maximum strength).Now for what the instructions don't tell you. You need to extend your z limit switch on the photon 4k when you re-zero your build plate. I printed a couple of extensions for thingverse, but ended up junkies them since I didn't have the time nor patience to look for a longer screw. Ended up, after reading a few reddit, deciding to simply extend with piece of black plastic electrical tape.Believe it or not, Worked like a charm and you don't even notice it. Remember you have to break the light beam on the switch a little sooner to accommodate the additional girth added by the magnet and plate. If not you will hear a massive crunching notice and damage your machine.After that it worked just as advertised. Was nice not having to use the spatula to remove the print.

I've been using these for about six months and in that time I have not had a single failure.Working on my Mars 4 UltraThis product has:Improved my success rate, not a single failure due to build plate adhesion since installing.Improved my workflow, with only one printer and these 2 platforms I can post-process one batch while starting the next print.Simplified cleanup since the build plate does not add a lot of bulk into the washing station and separating the print is as easy as gently flexing the plate.I highly recommend.

You are almost fooled into thinking the Magnet material is also 3M but it is not. Simply some cheap magentic material, possibly used to make magentic signs for cars.I have been using a flexible build plate from Sovol for my Mars 2 since early 2021 and it has never caused a failed print. The magnet is so strong it's easy to hurt yourself when mounting the plate. I still have the other plate and magnet and I measured the two magnets. The Koyfei is 1/3 thinner than the original Sovol magnet. The steel plates are identical so I can assume they saved money by supplying substandard magnetic material. May be ok for a contractors pickup truck sign but WILL COST YOU MONEY if you buy this sub standard product masquerading as quality!I have had both magnets fail with the stainless build plate simply lifing and ruining the piece, costing me money. I am not builting cutsie minatures but jigs and stamps for engraving and leather work. many of my itrems are lage and almost fill the Mars 3 plate. The cheap, thin magnetic material supplied with these plates are 1/3 thinner than the original Sovol magnetic material in Sovol plates that work so well.I have ordered another set in hopes that the magnets supplied in the first was defective. The 3M adhesive has held firmly after curing for 36 hours under pressure. Since the Mars 3 is a LARGER build area than the 2 the magnets need to be STRONGER not WEAKER!UPDATE: When my second set arrived I found the magnets were just as bad as the first set but then I added the extra magnet to the build plate and then WALA! The plates worked perfectly! As stong or stronger than the original thicker Sovol set I had purchased for my Mars 2 a few years ago. I have run hundreds of prints through the Mars 3 with ZERO failures. The plates perform flawlessly. I have subsequently changed my review based on using both magnetic sheets.

This item did not work as advertised. It was always hard to remove the print. In the end the print would not come off at all. The printer always read that there was residue in the vat, which was even with a clean vat and fresh resin. Removing the adhesive destroyed my build plate.