Official TRONXY X5SA PRO 3D Printer with Titan, Newly Upgraded Lattice Glass Platform+TR Sensor,Core XY Structure with Industrial Linear Guide, 30P Integrated Cable, Safe for Home and Industrial Use

I have owned a Tronxy X5SA printer for several years (it is a 300mm cube machine). My original machine had several bugs that had to be solved before it became a good machine, but since I solved those issues it has been putting out fantastic prints for a long time. When I saw this new machine available I thought it would be worth the price I paid for it to have that much larger printing area. I didn't even notice until I was assembling it that several of the big problems I had on the old machine have been addressed right from the factory.The Tronxy X5SA 400 PRO is a great machine. It is definitely not a beginners machine. I was able to assemble it in about 4 or 5 hours. Not bad considering the sheer SIZE of this thing. 400 X 400 X 400 mm (15.75 inch cube) is big enough to print all sorts of things. I could easily print a full size Iron Man mask or Mandelorian helmet. I'm even thinking about printing a cowboy hat.Here are some of the things that really make this machine better than most:1. The new Gantry rails are ALL metal. The wear surfaces are polished steel (I assume hardened, but I haven't tested how hard they are) which should outlast plastic or rubber wheels on aluminum extrusion at least 10 to 1. This is a nice feature, even though I never really had any trouble with the gantry rails of the old machine.2. The new extruder is geared to provide MUCH more torque than the original X5SA 300 machine I purchased several years ago. This solves one of the main issues I solved on the 300 model by printing a new geared extruder. THIS IS WORTH SO MUCH!3. Several new metal brackets replace plastic brackets from the old model. This is especially valuable for the X Y stepper motor mounting brackets. The metal parts will be much more robust.4. The Z axis rail bearing housings are upgraded to metal.5. The new Z limit sensor works on any surface including glass, which is my preferred build plate medium. On my old machine I had to apply a piece of metal tape to the surface to use the sensor. This is a great upgrade.6. Tronxy Firmware is easy to use and looks pretty. It is built on Marlin firmware so there are a lot of internal settings that can be edited with some simple Mcode programs.7. The motors are very quiet. when it moves slowly it is completely inaudible. When it moves fast it makes a quiet hum. I think If I had to I could probably sleep in the same room as this while it is printing. I cant hear it from another room.There is only one issue that the new machine doesn't address, which is that when powered down the dual Z axis motors can drift independently causing the build surface to become out of plane. I solved this easily with a few printed parts and a continuous timing belt to tie both motors together. But it isn't a terribly difficult thing to deal with even without my mod.I printed one of the files on the card as the very first print. It ran very well, but it did under extrude a little, which is easily adjustable either through the slicing software or on the touch screen.I recommend building an enclosure for this machine. Once you have an enclosure and the Z axis motors tied with a timing belt, I think this machine will perform right on par with Fusion3 machines that cost $3000-$4000. Actually I think this will be better.Who should buy this machine?If you are a complete noob to 3D printing, don't buy this one. You need to learn some stuff first. If you have had a printer before and want a bigger print volume DO buy this machine. If you don't like to assemble equipment, if IKEA furniture scares you DON'T buy this machine (seriously!). If you are handy with an Allen Wrench and a pile of screws doesn't alarm you and you can follow an instruction manual DO buy this machine.If you want a machine that is completely plug and play with absolutely no dinking around DON'T buy this machine, Stratasys has some machines that will ALMOST meet your expectations for 100 times the price. If you want good, large prints with a strong ability to modify and adjust your settings DO buy this machine.One assembly note that kind of bit me: use a good framers square to make your machine square before tightening all the frame screws, and again to make your gantry very square before trimming the timing belts. My son built this segment before I noticed and he didn't get it right at first. Be careful that you don't misalign your gantry by tightening the belts too much.

This review is for the Tronxy X5SA-400-PRO. Assembly is not for the weak of heart, but after about 5 hours I had it assembled. I did take my time, and put right angle blocks on every corner to ensure squareness. The instructions were adequate, however, it is all pictures and no words. I recommend that before you assemble this, you go to YouTube and watch several of the assemble videos – they are very helpful. The quality of the kit parts was great and everything fit together well. The only non-metal part of the assembly is the plate that attaches the hotbed cable chain to the hotbed – this is made of acrylic. Ironically, the first time I brought the hotbed to the top, the cable chain jammed under the top frame piece which cause this plate to snap. I would suggest that when you attach the cable chain to the rear upright, that you angle it slightly forward so the cable chain doesn’t hit the frame. Once assembled, I powered it up and did an initial auto-level routine to see how level the build plate was. The numbers I got were all over the place. All the numbers were negative, and ranged from -1.090 to -.348 . I attempted to get the numbers better by adjusting the bed leveling knobs, but each subsequent test was just as erratic. In fact, if I ran the auto leveling routine twice, with no adjustments between runs, the numbers are still different. I then defaulted to doing a manual leveling. After accomplishing this, I reran the auto leveling and still got erratic numbers. After hours of attempts to get it level, I’ve concluded that the problem is either: 1) the bed is warped, 2) the glass plate is warped (not sure that the glass could be this warped, but I guess it’s possible); 3) either the X or Y guide rails are warped, or 4) the sensor is erratic. Once I had the bed reasonable level (manually) I set the Z offset and attempted to make a test print. Even though I had the first layer set correctly, I could not get the PLA to stick to the glass build plate. After multiple adjustment and failures, I resorted to coating the glass with hairspray, and I finally got my first print completed (a 20 x 20 test print in the center of the build plate). Using a caliber, the dimensions were good. I then drew up (I use FreeCad) a replace plate for the one I broke earlier and successfully printed that. Again, the dimensions were accurate. Next I drew up a 30 x 30 test square and attempted to print one in the center of the build plate and one in each corner of the build plate. While the center square printed great, I could not get the squares at the corners to print properly. I will continue to work on this because I want a 400x400x400 printer that will print in the entire build space. Another issue relates to the Z steppers – they are not physically synchronized – so if you put pressure on the build plate (like when you remove a print) you may cause one or both of them to move, which will throw your bed leveling off. One surprise was the routine the printer goes thru when you hit print. After zeroing, the print head moves to the extreme left hand side of the print bed and lays down two strips of filament – a filament prime feature. So a summary:1) The kit is made from quality, good fitting, materials.2) Not for begins, or someone who is not good at assembling puzzles.3) Auto leveling does not appear to be working correctly (I will continue to work with it). Note – after multiple adjustments, I am able to print on most of the print bed. My approach was to level the bed as best I could, set the z zero, attempt printing in the center and 4 corners, and adjust the bed height until successful.4) Best I can tell, the glass build plate is domed in the middle and drops off on all 4 corners.5) Print dimensions are accurate.6) Printing in the entire build space is going to take some tweaking.7) This printer is quiet.Overall I would recommend this printer to people who want a large print space, are good with mechanically assembling things, and have the patience needed to dial it in.