Certified Pre-Owned 3D Printers

Excellence from Our Farm to Yours. Tested and cleaned by a Hydra Research technician.

Upgrade your workshop with professional-grade machinery at a fraction of the cost. The 3D printers in our used inventory aren't just "second-hand"—they are the former workhorses of our very own active print farm.

Because our production demands are high, we follow a strict regimen of preventative maintenance and tuning to ensure every machine delivers peak performance. We are constantly expanding and upgrading our fleet to the latest technology; as we retire our older models to make room for the new, we pass that reliability and value on to you.

Why buy from our fleet?

  • Expertly Maintained: Regularly serviced by our in-house technician.

  • Battle-Tested: Proven reliability through real-world production cycles.

  • Ready to Run: Calibrated and tested before they head to your door.

  • Guaranteed: Protected by our 30-day return policy for your peace of mind.

Browse our current selection of retired models and find a high-performance addition for your next project.

Prusa MK4S with Enclosure & Accessories

(Hydra Research Certified Pre-Owned)

$780

7 in stock

Well maintained Prusa MK4S 3DPrinter with Official Prusa Enclosure. These printers were used in our print farm and were well taken care of and still work excellently and come with everything you need to get started!

Only available for local pickup at our office in NE Portland, Oregon.

Contact Us to Learn More

What’s Included

The printer and enclosure are sold as a complete unit.

Prusa MK4S

Known for its reliability and user-friendly maintenance.

  • PEI Smooth Print Sheet

  • Satin Print Sheet

  • Textured Print Sheet

  • New spool of PLA (band/color may vary)

  • Extra 0.6mm Brass Nozzle

Official Prusa Enclosure

Essential for printing challenging materials like ABS and ASA by providing a stable, elevated temperature. Also helps with noise reduction and dust protection.

Official Add-ons

  • Advanced Filtration System

  • LED lights

  • PSU cable quick release

  • Carry Handles

3rd Party Add-ons

  • High-capacity top mount spool holder for up to 3kg spool. 

  • Filament routing for both the high capacity external spool holder and the stock internal spool holder.

  • Flip out door prop to hold door open when printing materials that need extra cooling (PLA, PETG).

  •  Rack for holding extra print sheets