ELEGOO Mars 5 Ultra Resin 3D Printer with 7" 9K Mono LCD, 150mm/h High Speed Printing, Smart Automatic Leveling, Intelligent Detection, WiFi-Transfer, Printing Size of 6.04 x 3.06 x 6.49 inch

I spent a lot of time researching 3D printers a few years ago and settled on the Elegoo Mars 2 and have not been disappointed. it has performed flawlessly. I design and produce products for the scuba industry and are available in 90% of the dive shops, Aquariums, Water, resorts and Theme Parks, in the US and World Wide. Occasionally I have to produce a limited run of a design or a prototype and the Mars 2 has been perfect.I decided I needed a bit more capacity with a slightly larger build plate and the Mars 3 seemed perfect for the task. Most of my manufacturing is sub contracted here in the US but the 3D printing is my personal project and is based in AZ. The printer arrived exceptionally well packed but there was a minor flaw in the touch screen. I stated using the printer and was not disappointed. From the very first print to this day, I have not experienced a single fail! For me a fail is lost time and money and I am often on a deadline with these small runs.The small flaw in the screen became bothersome and at the angle the printers are installed it became a problem for me, so I ordered a replacement and exactly the same problem.. I discovered it was an issue with the way they were packing the printer at the factory. The packaging applied pressure to the touch screen and it eventually created a bubble and moire pattern on the screen. Not a problem at some viewing angles but it was an issue for my setup.For me, the measure of a company is not based solely on the quality of their manufacturing nor their QC but the ability to respond to a customer service issues and resolve it effectively and in a timely manner. In this respect, Elegoo is EXCEPTIONAL! Rather than return the product, they immediately sent me a replacement screen, which is easily installed, and followed up to make sure all was OK. I have been absolutely impressed with Elegoo’s response and follow up, and they now have a customer for life. I also purchase their resins exclusively and I ascribe the combination of World Class resins in a World Class printer for the excellent results I consistently achieve with their products. When I need to print, I select the file and push print and I know that in a few hours those items will be ready to ship. I use Elegoo ABS Like exclusively in the Mars 3 and Elegoo Water Washable in the Mars 2 for prototyping.One final point, I installed a flex build plate prior to firing up the printer for the first time. I use both magnetic sheets (current sheets are 1/3 thinner than the one on my Mars 2 purchased a few years ago) one on top of the other for maximum adhesion, and have never had to touch the plate with a scraper. They remain pristine and produce a factory finish when a model is directly on the build plate.In summary, I give the Mars 3 a 5 star rating and Elgoo a 5 star +++.If you are looking for your first 3D printer or additional printers for commercial applications, look no further than Elegoo!

The media could not be loaded. [Original two-star review, published 11/30/23:] Coming from a Longer Orange10 printer with the resolution of a potato (115μm), the Elegoo Mars 4 Ultra I received was still technically an improvement, but I have to fault the quality control at the factory for ever sending this thing out, and some questionable design choices for making the problem severe enough that I simply had to return the entire unit.First things first, the deal-breaker: the leadscrew came bent. Not just a little bent, but bent right at the bottom by the motor such that the opposite end wiggled about an inch side-to-side as it rotated (shown in the video clip). This caused wobbly artifacts in the test print I did, which you can see in one of the photos. The linear rail is remarkably stable and consistent, so the print still succeeded, but it still couldn't totally compensate for how bent the leadscrew was. Straight vertical lines on the print came out wavy, with the period of the waves corresponding to the pitch of the leadscrew.The second problem, which I could've coped with on its own, was that the entire cast aluminum plate that the resin vat, z-axis assembly, and lower chassis bolt onto was somehow also bent, creating a gap (pictured) at the back of the printer. The gap was only about an eighth of an inch wide, but the problem was that it let a lot of un-shielded UV light out, which of course is an eye-safety hazard. I could have just put electrical tape over the gap, but I still don't know how anyone could have missed that if they actually tested it before shipping as they claim.Finally, the "questionable design choices" I mentioned above are threefold, and they all pertain to the z-axis. First, there's no support bearing or other structure to receive the end of the leadscrew opposite the motor, so it's just free at that end, which is what allowed my bent one to wiggle so much (and perhaps allowed it to become bent in the first place). The second odd design choice was that the leadscrew isn't attached to the motor shaft with a coupler, it *is* the motor shaft, meaning the entire stepper motor/leadscrew assembly must be replaced if the leadscrew becomes damaged. The final choice I can't understand involves the sensor for zeroing the build plate arm. It's located at the bottom of the z-axis instead of the top, which renders the "set z=0" function effectively useless, since it still has to pass the sensor at the bottom to know where 0 is supposed to be.In the end, I might still re-buy this printer model (if Amazon ever issues me my refund now that I've returned it to them), since on paper it's still the best 3D printer for me, but this whole experience has been awful for me and meant that I'm not going to be able to make people ornaments in time for the holidays like I'd planned, so I wanted to go ahead and let people know that this stuff can and does happen and to be wary of it.[Update as of 12/12/23:] A few days after I wrote my original review, Elegoo customer service reached out to me (the first time a seller/manufacturer has ever done that in response to my review) to extend their apologies for my trouble, offer me a full refund, and ask me to give them another chance. I'd heard that Elegoo has the best customer service, and it seems I heard correctly. Their message gave me the confidence to order a new Mars 4 Ultra, and I'm glad I did, as the new printer works flawlessly. (I can still see a little UV light if I look at it at just the right angle during printing, but it's minor, and nothing is bent this time. I may eventually add a strip of thin, adhesive-backed foam between the chassis components to create a better light-blocking seal, but I doubt it's necessary.)It was a mistake to contact to Amazon's customer service before Elegoo's, as the latter has been wonderful to work with, even reaching out to make sure that I was happy with the replacement printer I ordered and reminding me that I can always contact them with any questions/issues. In light of my customer service experience, and the quality of the printer I got to replace the first one, I'm upgrading my review to five stars. I can now say that I wholeheartedly recommend this printer, even knowing that significant problems can occur, because I know that Elegoo has my back if and when those problems occur. Seriously, if something is wrong, contact them first. You'll be glad you did.

Awesome printer. Small, but packs a ton of power. Amazing print detail and very user friendly. Perfect for printing tabletop minis and smaller terrain.