Splits in resin prints can be frustrating for 3D printing enthusiasts, as they can ruin an otherwise perfectly printed object. But don’t despair! There are several ways to fix splits in resin prints, depending on the cause and severity of the issue.

How To Fix Splits In Resin Prints
Resin Prints

Tips for troubleshooting and repairing splits in resin prints

Here are some tips for troubleshooting and repairing splits in your resin prints.

1. Identify the cause of the split

The first step in fixing a split in a resin print is to figure out what caused it. Some common causes of splits in resin prints include:

  • Warping: If the bottom layers of your print are not properly adhered to the build platform, they can warp and cause the top layers to split. This can be caused by a variety of factors, including the type of resin you’re using, the level of humidity in your printing environment, and the temperature of your build platform.
  • Warping: If the bottom layers of your print are not properly adhered to the build platform, they can warp and cause the top layers to split. This can be caused by a variety of factors, including the type of resin you’re using, the level of humidity in your printing environment, and the temperature of your build platform.
  • Poorly supported geometry: If your print has overhanging or unsupported features, the weight of the top layers can cause them to split. Make sure you’re using adequate supports in your print, or consider using a resin with better support properties.
  • Resin batch issues: If you’re using a new batch of resin, it’s possible that it has different properties than the resin you’ve used in the past. This can cause issues with adhesion and strength, leading to splits.

2. Pre-emptively fix minor splits

If you notice a small split starting to form during the printing process, you may be able to fix it before it becomes a bigger problem. One way to do this is to pause the print. Then carefully remove the print from the build platform. And use a small amount of resin to fill in the split. Then, place the print back on the build platform and resume the print.

3. Repair major splits

If the split is too large to be repaired with a small amount of resin, you’ll need to take more drastic measures. One option is to completely remove the layers above the split and start the print over again. This can be time-consuming, but it’s often the most reliable way to fix a major split.

Another option is to use a bonding agent to fill in the split and reinforce the print. There are several types of bonding agents specifically designed for 3D printing, such as cyanoacrylate (also known as “super glue”) or epoxy resin. Follow the manufacturer’s instructions to mix and apply the bonding agent. Just make sure to wear protective gloves and a mask to avoid inhaling fumes.

4. Prevent future splits

Once you’ve successfully repaired your split resin print. You’ll want to take steps to prevent similar issues from occurring in the future. Here are a few tips:

  • Use a resin with good adhesion properties: Some resins are prone to warping and splitting due to their low adhesion to the build platform. Look for resins that are specifically formulated to reduce warping and improve adhesion.
  • Maintain a stable printing environment: Temperature fluctuations and high humidity levels can contribute to warping and splitting. Use a heated build platform and consider using a drying oven or dehumidifier to keep the air in your printing area stable.
  • Use adequate supports: Properly placed supports can help prevent splits caused by unsupported geometry. Make sure you’re using the appropriate number and placement of supports for your print.

How To Fix Splits In Resin Prints
resin painting

Conclusion

By following these tips, you can fix splits in your resin prints and avoid similar issues in the future. With a little bit of patience and attention to detail, you’ll be able to produce high-quality resin prints that are free of splits and other defects.