Uniformation GK3 (B) Ball Screw 16K Resin 3D Printer – Excellent Used Condition + 2 Magnetic Flex Plates

If you've done your research, you already know the Uniformation GK3 series is considered one of the premium choices in resin 3D printing, with features that simply aren't found on many printers in this price range.

I've been resin printing for over 10 years and have watched the technology, machines, and industry evolve considerably during that time. After using many different printers over the years, the GK3 has become one of my favorites.

These printers just work.

Whether you're completely new to resin printing or an experienced professional running printers every day, the GK3 is an exceptionally capable machine. In our experience, it has been extremely reliable and consistent compared with many resin printers where failed prints, leveling problems, temperature issues, and constant adjustments can quickly become frustrating.

The combination of the 16K screen, heated resin system, COB light source, and precision ball-screw Z-axis makes the GK3 (B) an excellent choice for anyone looking for both exceptional detail and dependable printing.

ABOUT THIS PRINTER

For sale is a Uniformation GK3 (B) Ball Screw Resin 3D Printer in excellent used condition.

This printer has been well cared for, professionally used, and is fully functional and ready to print.

We originally purchased five GK3 printers for a special project that is now complete, and we are now selling three of them. The printers have been carefully maintained and performed extremely well for us.

2 MAGNETIC FLEX BUILD PLATES INCLUDED

This printer has been upgraded with a magnetic flexible build plate system and includes TWO magnetic flex plates.

If you've used flex plates before, you know how convenient they can be. Instead of scraping prints from the standard build plate, you can remove the flexible plate and gently flex it to help release the finished print.

This makes print removal incredibly easy and is a great upgrade for a production printer.

The printer can also be converted back to the standard build plate configuration if desired by removing the magnetic system.

Full Disclosure: The installed magnet has a small scar/mark in the center from one occasion when the printer was accidentally operated without a flex build plate attached. This has not affected the operation or printing performance of the machine. We have continued using the printer without an issue.

We want to make sure the buyer is fully aware of it. If desired, the magnetic layer can also be removed or replaced, or the printer can simply be converted back to the standard build plate configuration.

Please see the actual listing photos for condition.

CONDITION & NEW ITEMS

• Excellent used condition
• TWO magnetic flex build plates included
• NEW screen protector – already installed
• NEW FEP included
• NEW carbon filter
• Auto-fill resin reservoir is NEW and has never been used
• All printer functions have been tested and are working properly
• Printer has been carefully wiped down with 99% IPA
• Adult owned and professionally used
• Carefully maintained throughout its use

SCREENS & COVER ARE LIKE NEW

One thing we did differently with these printers was leave the original protective plastic film on the exterior screens and printer cover while the machines were being used.

As a result, the surfaces underneath have remained exceptionally clean and protected.

We have intentionally left the protective film in place for the new owner. You get the satisfaction of peeling it off yourself and revealing the clean, like-new surfaces underneath.

Please look closely at the listing photos. The photos show the actual printer you are purchasing, not stock photos.

WHAT'S INCLUDED

The printer will be carefully packed in its original Uniformation factory box and packaging and includes the accessories, tools, instructions, and related items that originally came with the printer.

Also included:

• TWO magnetic flex build plates
• Installed magnetic build plate system
• NEW screen protector – already installed
• NEW FEP
• NEW carbon filter
• NEW / never-used auto-fill resin reservoir
• Original accessories
• Original tools
• Original factory box and protective packaging

SHIPPING – PACKED & READY TO GO

This printer is already packed and ready to ship.

We normally ship the next business day after cleared payment.

The printer will be carefully protected in its original Uniformation factory packaging and shipped with insurance against loss or shipping damage.

GK3 (B) BALL SCREW FEATURES

Original Retail Price: $899.99

According to Uniformation, the GK3 (B) offers a number of premium features designed for high-detail, reliable resin printing:

16K High-Resolution LCD Printing
The high-resolution 16K LCD is designed to produce extremely fine details, clean edges, and smooth surfaces—particularly important for miniatures, scale models, prototypes, and other highly detailed prints.

Advanced COB Light Source
The COB light system provides consistent illumination across the printing area, helping achieve uniform curing and reliable results throughout the build plate.

Precision Ball-Screw Z-Axis
This is the GK3 (B) Ball Screw version. The precision ball-screw Z-axis provides smooth and accurate vertical movement for consistent layer positioning and dimensional stability.

Smart Resin Heating System
One of the features we particularly appreciate is the integrated heating system. Maintaining a consistent resin temperature can make a significant difference in resin flow and overall printing consistency, especially in cooler environments.

Wi-Fi Connectivity
Built-in Wi-Fi provides additional flexibility for managing your printing workflow without always having to work directly from the printer.

UL & CE Certified
The GK3 (B) carries UL and CE certifications for applicable safety and compliance standards.

WHY WE'RE SELLING IT

There's nothing wrong with this printer and we're not selling it because of performance problems.

We purchased five GK3 printers specifically to increase production capacity for a special project. That project has now been completed, so we simply no longer need all five machines.

We're keeping two and selling three.

This is a great opportunity to purchase a carefully maintained GK3 (B) Ball Screw printer with the added convenience of two magnetic flex build plates and several new consumable items already included.

PLEASE SEE THE ACTUAL PHOTOS

The printer shown in the listing photos is the actual printer you will receive.

We believe in accurately describing used equipment, which is why we've specifically disclosed the small scar on the magnetic layer. It has not affected the printer's operation or print quality, but we want the buyer to know exactly what they are purchasing.

Please review all photos carefully for cosmetic condition and exactly what is included.

If you've been considering stepping up to a Uniformation GK3 (B) but don't want to pay the price of a brand-new machine, this is an excellent opportunity to pick up a carefully maintained, tested GK3 (B) that's packed and ready to go.