For color LCD 3D printers,we recommend making it around 8-12 times longerthan your normal layer exposure time. Also called the number of bottom layers, bottom layer count, or number of base layers in some slicers. What is the Number of Burn-in Layers? Retract speed is the speed at which the build plate lowers down into the VAT. What Retract Speed should you use? Once you’ve washed your 3D print, you also need to cure the model. Curing is a post-processing technique that involves using Ultraviolet (UV) light to further solidify the printed resin of your model. The high fluidity of this resin results in better printing accuracy and reduced curing time. By adding polyurethane acrylate (PUA) to the formula, the manufacturer has increased its bending strength and tensile to make this resin tougher.

Low odor is another thing that many customers love about this resin. One of them said that compared to other printing resins he has used, the odor is very low. He also mentioned that he is highly sensitive to smells. Most curing stations, like the last one, work with one UV light strip and a spinner to expose the whole surface of the model to the light. However, the Jayo Curing Box takes a slightly different approach, using one UV light strip and a translucent filter that surrounds the print. Here’s a comprehensive guide to help you to understand key resin 3D printing settings. After reading this, you’ll be ready to face the rewarding world of 3D printing. All in all, you should experiment with this burn-in layer exposure time setting. Start with a longer exposure value and print something. If it is extremely hard to remove the model from the build plate, it may indicate that your exposure is too high. Lower it and try again.

3. SUNLU 3D Printer Resin

High hardness and precision are the main advantages of this resin. The parts are resistant to impact and fairly sturdy, even allowing you to drill the models without breaking them. The calibration part on the left was printed with shorter 1.2s exposure. We have all vertical and horizontal gaps open. Tiny windows on buildings are all open and well defined. We have four rows of pins and a little bit wobbly antenna tower. The chess pattern is also pretty good; however, it indicates some under-cure as the corners do not meet perfectly. Finally, the quality of 3D prints depends not only on layer height but also on the XY resolution of your 3D printer. This XY resolution is the pixel size of a 3D printer’s LCD screen or DLP projector, or a laser spot size in a laser based 3D printer. Usually, it is between 20 μm and 90 μm. In other words, even if you print with very thin layers, the quality is still limited by the fixed XY resolution of your 3D printer. So consider that when choosing the right layer height.

Viscosity - This impacts how easily the resin flows and how it spreads on each layer. Lower viscosity resins can produce finer details. To make sure no impurities are present in the raw materials, the production process is strictly controlled by RESIONE. This results in clear and transparent raw materials. SUNLU has created this ABS-like resin with durability, high precision, and low shrinkage in mind. It comes with an improved formulation that allows for high-precision work with minimum shrinkage. The tensile strength is from 20 to 35MPa. Exposure time depends on the reactivity of the resin, but also some other factors. For example, room temperature impacts resin curing speed significantly. The warmer resin will cure faster, while the colder ambient temperature will slow down the curing speed. That means that you might need to use longer exposures in winter.When it comes to color, it is worth mentioning that the prints are not too dark. One buyer said that his models are fine in terms of quality but he would like to get a bit darker gray for more noticeable details. It’s a matter of personal preference. After printing, wash models with 95% isopropyl alcohol or higher concentration. Use a brush to clean intricate details. For water washable resins, rinse under water for 1-2 minutes. For highly detailed prints, use an ultrasonic cleaner for 1-2 minutes to achieve optimal results. Allow models to dry fully before handling, using a hair dryer to speed up drying time. Finally, post-cure models under UV light for maximum material properties. Another user mentioned that he got just the right color for his printing projects. The color is crisp without any light or dark spots. You can add dyes or pigments to adjust colors with the clear and white resin usually.

Essentially, this setting allows adding a delay to the exposure after the build plate retracts to its lowest position. Right after the build plate reaches the bottom, it stops, and the system waits for this pre-defined duration. Only after this pause it turns on the light source and starts the exposition of the new layer. After retracting, this rest time brings more time to fully squeeze resin out of the gap between the model and FEP. What Rest Time After Retract should you use? If you are new to 3D printing – start without anti-aliasing. It will give you a better understanding of what your printer is capable of. Once you get consistently successful prints and want to improve the results, then try anti-aliasing. UV powerStart without any transition layers at first. Consider adding transition layers if you see layers delaminating between your base and normal layers. Lift Height What is Lift Height? Additionally, when FEP or nFEP (PFA) is too tight, loose, or worn out, you may have issues with models being pulled off the build plate.

The Creality 3D UW-01 works basically the same as the last two wash and cure machines, with a swappable cover and motor attachment for washing and curing. Keep resin bottles tightly sealed during storage to prevent dust and moisture exposure, which can reduce print quality. Also called bottom exposure time, initial exposure time, or base layers exposure in some slicers. What is Burn-in Layer Exposure Time?The residue on the surface of the printed resin parts can be washed with alcohol at a concentration of 95% or more, and it is recommended that the cleaning process should not take more than 1 minute.