Our Engineering LCD Resin – Impact 71D is a durable 3D printing resin. This engineering resin has mechanical properties like ABS with an improved impact strength. The resin has excellent machinability properties, and 3D-printed parts can easily be post-processed. Because of its durability, the 3D-printed parts are perfectly suitable to drill into. These properties make Impact 71D resin a perfect match for 3D printing mechanical and operational parts.

Important key features

• 3D printing resin with ABS-like strength and stiffness.
• Improved impact resistance.
• An engineering resin with excellent machinability properties.
• Good compatibility with all SLA, DLP and LCD / MSLA 3D printers in the range of 385 – 420nm.

Suitable applications

• Manufacturing strong and stiff prototypes.
• Suitable for creating tooling parts, jigs and fixtures.
• Perfect for producing mechanical and operational replacement parts.
• Excellent for snap-fit assemblies.
• Perfect for short-run manufacturing

Physical properties after post curing

Please note that the above-displayed values can vary with individual machine processing, post-curing parts,  geometry, print orientation, print settings, and temperature.

Specimens are printed on a Phrozon Sonic Mini 4K at 23°C and 50% humidity with 0,05mm layer height and 5 seconds exposure time per layer.
Specimens have been post-cured for 30 minutes with 200W and 405nm UV LED conditioned for 72 hours at 23°C and 50% humidity.

Preparation(s) before starting to print

• Shake the bottle for at least 2 minutes before each use.
• After shaking the bottle, leave the resin to rest for 10 minutes to let air bubbles get out of the resin
• The resin can be poured back from the vat into the bottle once your print is finished
• Always use protective measurements like safety glasses and nitrile gloves when handling resins.

Post-processing

• We do advise you to post-process your 3D print in order to achieve the material properties
• Rinse your 3D printed object in IPA or (Bio)Ethanol for approximately 5 minutes
• An ultrasonic cleaner is preferred/recommended
• Make sure that IPA and/or (Bio)Ethanol rinsed objects are perfectly dry before further post-curing
• Place the rinsed parts in a well-ventilated area for at least 30 minutes, or use pressurized air for at least 2 minutes
• Cure your object in a high power curing chamber for approximately 20-30 minutes at 65° C
• The preferred curing wavelength is between 300-410nm
• Note: The Print will come out very yellow-ish / bright yellow, this will fade over time when exposed to uv light from outside/inside. (this is called Photo Bleaching).

Safety

Please always be aware that when 3D printing with resins that you are working with chemicals and that you should always be cautious and use the personal protective equipment as stipulated in our safety data sheets.

• Always wear Respiratory Protection when sanding/cutting the resin object.
• Always use nitrile gloves when handling resins and uncured resin objects.

Print Settings

Anycubic Photon Mono SE

50µm
First / Burn-in Layers:6x to 8x 50 to 55 Seconds
Normal Layers: 3.5 to 4.5 Seconds
Lifting Distance: 6mm
Bottom Lift Distance: 8mm
Light-off Delay: 0.5 to 1 Second(s)
Bottom Light-off Delay: 1 to 1.5 Second(s)

Phrozen Sonic Mini 4k

50µm
First / Burn-in Layers:4x to 6x 45 to 55 Seconds
Normal Layers: 7 to 8 Seconds

*If you need the best settings for your 3d printer we highly recommend using the included RERF (Resin Exposure Range Finder) or Resin Exposure Calibration Tool.
This is most likely included with the 3d printer usb stick and or manual.

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