Risks and hazards

Below is an overview of the hazards involved. Operating procedures will be detailed further on.

In general 3D printer resin comes with the following hazards:

  • Fumes while curing can be toxic if not well-ventilated.
  • Causes skin irritation.
  • May cause an allergic skin reaction.
  • Causes serious eye irritation.
  • Harmful to aquatic life with long lasting effects.
  • Can get hot enough to cause blisters if cured manually with UV light.

Refer to the material safety datasheet of your specific resin for more information.

Refer to the material safety datasheet for detailed information. In summary the main hazards are:

  • Vapours are flammable and explosive in the wrong fuel-air mixture
  • Vapours may cause headache, fatigue, dizziness and nausea. Use in a well ventilated area
  • Extreme irritation of eyes and mucous membranes, including burning and tearing. Risk of corneal damage.

Operating procedures

All opeartions require the following personal protective equipment (PPE):

  • Eye protection
  • Adequate ventilation
  • Nitrile gloves
  1. Put on your gloves and eye protection. Ensure there is adequate ventilation
  2. Open the door of the resin 3D printer
  3. Unscrew the lid of the resin bottle
  4. Being careful to avoid splashing/spilling, pour the resin into the 3D printer vat until there is sufficient resin for your print
  5. Screw the lid back on and return the resin bottle to the COSHH cabinet

Removing and post-processing a 3D print

  1. Put on your gloves and eye protection. Ensure there is adequate ventilation.
  2. Fill the washing station with Isopropyl Alcohol (IPA). Close the lid until you are ready to use it.
  3. While avoiding any resin coated surfaces, remove the build platform from the 3D printer. Hold it upside-down to avoid dripping any resin
  4. Open the lid of the washing station with your other hand.
  5. Using a spatula, scrape the 3D print into the washing station.
  6. Replace the print surface back into the 3D printer.
  7. Agitate the 3D print for a few minutes until clean.
  8. The 3D print is now safe to handle, but is still delicate. Carefully place the 3D print into the curing station until fully cured.
  9. Empty the cleaning station back into a sealed container. Label this container as contaminated IPA if not already.
  1. Put on your gloves and eye protection. Ensure there is adequate ventilation.
  2. Transfer the contaminated IPA to a transparent sealed container.
  3. Place this container in front of a window for a few hours. This will cure any uncured resin and precipitate it to the bottom of the container.
  4. Decant the top layer of liquid into a new container. Pass the remaining liquid through a paper filter.
    1. If the old container is to be re-used then rinse it with a small amount of IPA.
    2. Empty this onto a dish with a large surface area and allow to evaporate in a ventilated area. Dispose of the remaining solids.
  5. The new container is still slightly contaminated and should be labelled as such

After many uses, even filtered IPA will become unusable. At this point it needs to be disposed of.

  1. Put on your gloves and eye protection. Ensure there is adequate ventilation.
  2. Pour the used IPA into a large open dish. Rinse any remains with a small amount of fresh IPA
  3. Allow the IPA to evaporate in a well ventilated area.
  4. Scrape the remaining solids into general waste

Should we get some sawdust or similar stuff that can be put onto spilled resin? There might be a better solution.

Resin is not to be stored in the Hackspace(?) – not sure if this is the best advice.

Not too sure where the best place to store the IPA is. It CAN be stored in the CW1, but the advice is not to for prolonged periods. I don't know how long a prolonged period is.

  • equipment/resin-3d-printer
  • Last modified: 7 weeks ago
  • by benev