MSLA (Masked Stereolithography Apparatus) resin 3D printer.

The Elegoo Mars is a compact resin 3D printer renowned for its ease of use and affordability, making it an excellent choice for makers seeking detailed prints. Utilizing masked stereolithography (MSLA) technology, it employs ultraviolet light to cure liquid resin layer by layer, resulting in finely detailed models. The printer features a simple touchscreen interface and uses Chitubox slicer.

• Type: MSLA
• Print volume: 120 x 68 x 155 mm
• Approximate exposure time: 8 sec
• Release film: FEP
• File transfer: USB Drive

• All photopolymer resins not requiring heat or agitation

Elegoo Mars 1 User Manual

All members must use Chitubox slicing software for our resin printers. This is important for ensuring the community has access to printers that are easy to use, ensuring machine longevity, and producing high-quality prints. Printing settings may be adjusted as needed, but machine settings may NOT be edited. Chitu Systems designs and manufactures the controller boards for our Elegoo 3D printers, and provide optimized printing profiles within the slicer. Per-resin exposure settings should be tuned as-needed.

Chitubox is compatible with Windows, Mac, and Linux.

Chitubox Website: https://www.chitubox.com/en/download/chitubox-free

1. Install and Launch Chitubox
2. Restart as prompted to refresh printer and resin database
3. Click the (+) button along the bottom tabs
4. In the new menu, search for the printer you want to add
5. Select the printer and click next, and then apply
6. The printer profile will now be imported into your workspace, as well as some default resin presets

• My files are not showing up on the printer:
  Make sure your flash drive is fully plugged in.
• My files still are not showing up on the printer
  Check to see that your flash drive is formatted as FAT32/exFAT. NTFS is not supported.
• My files still are not showing up on the printer
  Make sure your export file format is .cbddlp
• My prints are detaching from the bed:
  Level the bed prior to starting your print
• My prints are still detaching from the bed:
  Make sure the vat is clean and there are no debris stuck to the release film

Machine profiles are available inside the slicer.

When using a new resin, it is recommended to calibrate the exposure time. Exposure times vary per resin and per resin color.

To find recommended exposure times, find your printer and resin combination in the spreadsheet below.

Elegoo 3D Printer Resin Settings

The following calibration object is recommended for quickly dialing in exposure times.
Instructions for use and video demonstration are linked in the Printables description.

Printables Download & Instructions: Validation Matrix

• 5/15/2025: Service Entry Maintenance
  • Unpacked printer
  • Inspected build plate, vat, and release film
  • Powered on
  • Successful test pattern