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By letting the residual water (with bits of resin in it) sit in the sun, you’ll enable the formation of solid resin particles, which can then be extracted from the water with a filter. When that’s done, dispose of the (cleaned) water and throw the filtered resin (plastic) particles in a corresponding bin. To complete the washing and curing process, you’ll need to expose the model to UV light to cure it completely and bring out the sharp details and features.
A cardboard box lined with aluminum foil and UV lights is a popular option, as is using an empty paint can with a reflective surface. The shell or container doesn’t matter so much as long as you buy good quality UV light strips. You can also remove supports after curing a model, but in a semi-cured state, they are generally easier to remove and leave much less noticeable marks on features and details.Large Tray– Line it with paper towels and use it as a workspace to remove the print from the build plate, to try prints after washing, remove supports, and so on. The tray will keep any spills and drips of liquid resin contained, making clean up easier. Properly cleaning and curing your resin prints transforms a fragile, viscous, potential toxic and slightly hazy blob of semi-cured resin into a structurally sound and highly detailed model. It’s an unavoidable part of printing with a resin SLA printer, and one you’ll want to get right to save time and hassle in the long run. Secondly, curing models brings out all the features and details that are present after printing but not quite as sharp and distinct. Curing resin prints also smoothes up surfaces and gives models that sleek sheen we expect from SLA prints. It’s the final touch up needed to fully complete the polymerization process and the work undertaken by the printer to bring a model to life. After rinsing your 3D printed parts with water, the residual water will contain substances from the resin, which can harm the environment. Instead of throwing that water down the drain, leave it exposed to either sunlight or UV-light for at least half an hour, depending on the intensity of the sun.
Not Fragile】 Phrozen Water-Washable Resins are tougher than others on the market. Use this resin to create 3D printed figures, miniatures, and prototypes. Ventilation is also key. Aside from the pungent smell that wafts off liquid resin and semi-cured resin, you’ll also be using chemicals like Isopropyl alcohol that let off toxic fumes. This can be setting up your post-processing station near an open window, wearing a filtered face mask, or installing a venting system that moves fumes outside. Equipment Needed to Clean and Cure Prints Some equipment used in 3D printing using resin. Source: Reddit Once you open the bottle, you’ll notice the resin’s smell, but it’s far from what you’d call an intense resin odor. Models made with this resin have a nice, vibrant color. As an alternative to a wash and cure station, ultrasonic cleaners are sometimes used to remove uncured resin. These use ultrasonic energy waves to agitate water and remove uncured resin from parts.In this article, we’ve pulled together a list of the best options for water-washable resins. But first, let’s talk a bit more about how these types of resin compare to regular resin as well as safety. Part Performance A plastic cleaning jar with an inner basket is a handy accessory (Source: Uncle Jessy via YouTube)
Last, but not least you have the option of piecing together your own DIY cure station for much less than the commercial alternatives. There are numerous options out there with no end of clever projects making use of common household items and strips of UV lights, but we recommend working with items you may already have. DIY lightbox for curing resin prints. Source: Reddit Paper Towels– It’s better to have more than not enough, so we recommend having a couple rolls at your disposal for the wash and cure process.This water-washable resin is a product from a Sweden-based brand named PrimaCreator. This resin is compatible with many resin 3D printers thanks to the fact that polymerization occurs between 395- and 405-nm wavelength. After printing, but before the curing process, parts need to be cleared of residual liquid resin left on their surface. That’s usually done with isopropyl alcohol (IPA). IPA is the best and most popular cleaning solvent, but in case you can’t find it, tripropylene glycol methyl ether (TPM) also works. Designed to be easily cleaned by water, Phrozen Water-Washable 3D Printing Resins are sturdy, durable, print with speed, and work perfectly with beginner-friendly 3D printers. Yes, prints can be over-cured if left exposed to a UV light source for prolonged periods of time. This issue is especially prevalent when using a dedicated wash and cure station with a powerful UV light source. Over cured parts tend to be more brittle, fragile, and susceptible to breakage than perfectly cured parts. Over cured print has white patches and blobs. Source: Reddit The differences between the formulations of regular and water-washable resins result in different mechanical properties of parts. Because all water-washable resins contain a water-soluble ingredient, printed parts will have a certain level of sensitivity to water. This makes them impractical for use in wet environments.
Place the model in the other container of IPA. Gently move the part around to remove as much uncured liquid resin as you can. There’s no set time frame for this – longer rinses tend to remove more resin than shorter ones. They remove the need for multiple washes or manual brushing off small traces using IPA and a brush, and require very little effort. Standard resin cleaners work well (considerably better than hand washing), but aren’t quite as effective as ultrasonic cleaners. Unscrew the build plate from the printer arm and gently angle it 45° and let any excess uncured resin drip into the vat. Disposal Process: Cure any leftover resin and tools before throwing them away. Do not pour liquid resin down the drain or into the environment.Remember to rotate it at regular intervals so that the sun reaches all parts of the model. For smaller prints, especially miniatures, you can also place them in a glass of water. The water will refract the UV light across the full surface of the print, speeding up the curing process. Some resin 3D prints curing in the sun. Source: Imgur Resin 3D printing has always been a bit messy since liquid chemicals are involved in the process. In that respect, it’s never been much of a user-friendly 3D printing technique. Above is what we consider the bare essentials to complete to clean and cure prints. It’s possible to expand the list with silicone mats, flush cutters, brushes, and more.
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