Siraya TechFast ABS-Like 3D Printer Resin, High Precision, Non-Brittle - Low Odor 405nm UV-Curing Photopolymer for 8K LCD/DLP Printing (Navy Grey, 2kg)

I'm in the middle of an engineering project (basically a custom RC plane), and needed some small, precise parts that still need to take decently significant loads. Of course print quality and resolution is a more a matter of what printer you have, but I can say this stuff printed fantastically on my Photon Mono S with the settings recommended by Siraya Tech (you can find a spreadsheet on their website). The parts that I got are incredibly strong. I know this is an ABS-like filament, but I've legitimately gotten better performance out of these than actual ABS from an FDM printer. That is most likely because printing orientation does not matter nearly as much, so the parts turn out mostly isotropic (equal strength in all directions). I'll describe some of the cases I used this for below.MY USE CASES:One of the parts was a stepper motor gear (28BYJ-48) that needed to deal with up to 0.1N*m of torque. I can tell after a lot of use, the section that meshes with the stepper pin has worn down from perfectly tight, to having maybe 3-5 degrees of slack, but it's still perfectly usable.Many of the parts require linkages between them, so I printed 5mm pins. In my case, I had to reduce the size of the pins to about 95% to avoid clearance issues, but once they were in place the pins had very little friction while still providing very tight joints. Additionally, those pins could handle a surprising amount of shear force. I tested with a 5kg weight, so statically that's about 2.5MPa, but I also drop tested with that rig, so it could have easily reached 25MPa at one point.CLEANING:Specifically regarding this resin, you have to empty and clean your vat within 2 days if you don't plan on printing again. This stuff will separate into layers in about that time and becomes harder to clean off the vat. Also, water curing has yielded good results for me.If you've never resin printed before this part is for you, otherwise move along:Cleaning the prints is quite a hassle. They come out coated in liquid uncured resin which is, in the case of this resin, definitely a nasty skin irritant and potentially toxic if ingested (most resins are). You'll need LOTS of isopropyl or denatured alcohol, at least like 2 or 3 tubs or large tupperware containers, lots of paper towels, definitely more gloves than your printer comes with, and some way to get rid of the fumes. The alcohol is smelly enough, but this resin is definitely nasty stuff to be around. You have to be very careful not to get it on your skin or other surfaces (as it is quite drippy off the printer). With this resin, I got the best results by cleaning with alcohol from a spray bottle, then rinsing in water for 30 seconds, and then submerging in a cleaner tub of water before leaving in the sun (for 45 minutes) or shining with a bright UV light (1 minute or more, flipping the part with tweezers). I tend to keep one tupperware container for the alcohol cleaning process, which is very thick with uncured resin, one container for dirty rinse water, and one for clean water (and a bonus extra container to place all my contaminated tools and paper towels). I can usually run with this setup for several prints without changing out the liquids, which is nice because you CANNOT wash this stuff down the drain (unless you want even more micro-plastics in the ocean), and it absolutely has to be cured before you dispose of it. I typically save my 2-liter bottles and old mouthwash bottles, dump everything into those, and leave them out in the sun for a day before putting in the trash.CONCLUSION:If you can deal with the hassle of cleaning and PROPERLY discarding of the waste, then this resin produces results that you simply cannot get with other printing methods. Sure, FDM printing is less toxic and usually easier to get larger prints with, but the precision and speed of resin printing is unmatched. Usually that comes at the cost of poor physical proteries, but with this resin, you can get really small, precise parts with fantastic physical properties.

This resin is great after you dial everything in. Siraya Tech has baseline settings on their website for the most popular slicers, so import those and start there. It's a "fast" resin, so it's designed to be very runny. It also has some transparency to it. If you can really dial in your lift speeds, I get perfect detail using .5s exposure per layer. This makes prints, that normally take 7 hours, take a little over 2 hours to complete. You're going to have trouble getting really consistent quality prints going that fast though. I'm using a 2.25s per layer exposure and not getting any of the speed benefits, but I wanted this resin for the material properties. It's really durable and I love it. I can carve away at my model with a tiny carbide chisel, and it shaves away like plastic should. This doesn't chip away like brittle resins, and has really good flex to it. If you don't want to mess with mixing Siraya Tech Tenacious with a cheaper resin, just get the Tough Grey. Tough Grey is different from the regular fast grey FYI.

Siraya Tech Fast Smokey Black resin has become a reliable and dependable choice for many users, thanks to its impressive array of features. Known for its durability and flexibility, this product offers clean and smooth results for a wide range of 3D printing applications. In addition, users appreciate the minimal odor, making it an excellent option for those with heightened sensitivity to strong smells.The resin's robustness, combined with its slight flexibility, allows users to create intricate and complex designs without the fear of breakage. This makes it an ideal choice for both hobbyists and professionals alike. Furthermore, the Fast Smokey Black resin boasts a consistent performance, ensuring that users can expect the same level of quality from batch to batch.In conclusion, Siraya Tech Fast Smokey Black resin has proven itself to be a top contender in the 3D printing market. Its durability, flexibility, and minimal odor set it apart from other products in the field. As a result, it remains a go-to option for many satisfied customers who are looking for consistent quality and excellent results in their 3D printing endeavors.

I had to check out this resin for myself. I am using an Elegoo Saturn 4 Ultra and initially I used the settings from Siraya's website. Normal layer 2.2s. My model came out great but the supports were welded to the model. After running 16 calibrations from Table Flip Foundries cones of calibration, I concluded that my ideal normal layer curing time is between 1.6 to 1.8. I have been using 1.6 with no issues and I was able to lower my initial layers from 32 to 25 seconds. My supports come off so clean and buttery smooth and I dont have to fight to get my model of the plate.With my Freddy kreuger model, the blades on his glove are flexible and thats exactly what I would want this resin for. I also accidentally dropped the arm from the RE4 Regenerador from shoulder height to my hard tile floor and it did not break. As you can also see, the detail is great as well.Considering the price, it will not be my daily driver but will definitely be used for my most prized prints. Very happy with this resin and brand.

This is my go to resin. IT JUST WORKS! I have been using a Phrozen Sonic Mini 4k for a few years now and have only had printer setting issues (user error) with it. Even though resin has a shelf life and you should not do it, I have had no problems printing with old resin (1.5-2 years old)It is slightly more expensive than the cheapest resin out there but it is not as brittle and I really like the color and finish after curing. Their product has been very consistent in the few years I have been buying it