
Triple-Level Sensing
Three independent sensor pins precisely monitor resin levels. The two primary sensor pins ensure the fill height is maintained, and a third sensor pin reverses the pump.

Discover how AutoFILL automatically monitors and maintains the resin level in your printer’s vat, helping prevent dry runs, reduce failed prints and keep long or high-volume jobs running smoothly.
See AutoFILL in action
Resin 3D printing is revolutionising the way parts are manufactured, from prototypes to production. The materials developed by Monocure3D have advanced rapidly in recent years, now offering mechanical properties comparable to ABS plastic and Nylon, while new flexible formulations are pushing this technology to the next level. However, anyone who prints with resin is familiar with the struggles of small vats, forgotten top-ups, mid-print failures, wasting time and money.
AutoFILL™ solves all that. It automatically refills your vat, prevents dry runs, and keeps your prints running safely and smoothly, so you can focus on creating, not topping up.

AutoFILL has been designed specifically for resin 3D printing. The body, sensor arm, and base are all 3D-printed using our high-performance resin. The parts are optimised to print cleanly without traditional supports, with integrated blade supports in open areas that are easily removed before post-curing.
To support the community, the design files will be available for free download in STL, OBJ, and STEP formats, allowing you to reprint or modify the parts to suit your setup.
AutoFILL will be offered in two versions at launch.


Three independent sensor pins precisely monitor resin levels. The two primary sensor pins ensure the fill height is maintained, and a third sensor pin reverses the pump.

The system tracks fill duration and stops the pump if it exceeds the safe time limit, providing an added safeguard in case sensors ever lose contact or resin flow is restricted.

Once the primary sensors detect a full vat, the pump stops instantly. Ensuring safe, deliberate operation and preventing unwanted overfill due to sensor error.

Review the full technical data and key features of AutoFILL before launch. These documents outline system requirements, operating principles and intended applications.
“AutoFILL solved a problem I have had for years. I print multiple models on my two Nbee printers, and they are always unattended while printing. Running out of resin mid-print was a waste of my precious time. Now I can start a job and let it run without interruption.”
“We tested AutoFILL on multiple MSLA printers, and it maintained a consistent resin height throughout the build. It reduced failures on taller prints and improved repeatability.”
“The installation was straightforward, and the system integrates neatly without major modification. Once calibrated, it just works in the background.”
“I was sceptical at first, but after running several 10+ hour prints, I would not go back. The consistency in resin level made a noticeable difference.”
Find answers to common questions about compatibility, installation, pricing and system operation.
AutoFILL will be offered in two versions at launch.
The first is a kit version for users who are comfortable assembling the unit and printing the required parts themselves. This option includes all electronic components and hardware, along with a bottle of our latest Tensile+ resin for printing structural parts.
The second option is a fully assembled version, supplied complete and ready to install with all printed components included.
Final pricing will be confirmed at launch, with early supporter pricing available through Kickstarter.
