LDO Full Bear 2.1 Upgrade Kit for MK2S / MK2.5S / MK3S

LDO Full Bear 2.1 Upgrade Kit for MK2S / MK2.5S / MK3S

Regular price $ 159.99 USD
Regular price Sale price $ 159.99 USD
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The Bear Frame 2.1 upgrade improves the stiffness and reliability of the original Prusa i3 MK2(S), MK2.5(S) and MK3(S). It allows faster printing speeds, increases precision, makes maintenance easier and opens the door to more customization. It allows you to express your style and individuality with the choice of colored frames!

  - Compatible with Original Prusa i3 MK2(S), MK2.5(S) and MK3(S) printers
  - Compatible with many extruders such as the Original Prusa, BearExxa, BearMera, (E3D Hemera) and Bondtech Prusa Upgrade extruders.
  - Reuses as many parts, from your original printer, as possible
  - Sturdy frame for faster printing
  - Made from high quality aluminum extrusions
  - Custom designed, stronger and rust free t-nuts
  - Improved accuracy
  - Reduced noise level
  - Easy to build, use and maintain
  - Built to last
  - Precisely engineered printed parts
  - Thoroughly tested during development
  - Highly configurable and customizable
  - Detailed documentation
  - Supported by an active and broad based community
  - Truly open source

New features since the Bear Frame 2.0 release
  - Significantly improved assembly guide and documentation
  - Single frame for all Prusa versions (same frame as Full Bear 2.0 MK3)
  - New stiffer Y axis with tensioner
  - New stiffer Z axis
  - Improved X and Y axis homing accuracy
  - Improved Z axis alignment and assembly
  - Reduced Y axis stepper noise for MK3(S)
  - New build helpers for Y and Z axis
  - Support for all stock Prusa PSUs
  - Custom designed, sturdier t-nuts
  - Shorter LCD supports
  - New custom LCD cover
  - Nicer and more resistant end caps
  - Easier assembly of printed parts
  - Improved wire management with new cable clips
  - Stiffer mounts for Rambo Mini/Einsy cover
  - Compatible with E3D Gates idlers as well as with 9mm belt

What is in the kit
The kit contains all the extrusions, screws and nuts to upgrade an Original Prusa printer, you will only have to print the plastic parts yourself. Note that some of the screws and nuts from your Original Prusa printer will be reused.

Download, assembly guide and documentation

Printed parts, assembly guide and print settings can be find at https://guides.bear-lab.com/c/Frame .
Customer Reviews
4.5 Based on 19 Reviews
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Sandra M.
United States

Great Kit

The kit came well organized, and the instructions were mostly easy to follow. I did mess up the frame once and had to disassemble it partially to fix it, so make sure your frame is correctly built before moving on. So far it’s printing well without any hiccups.

Harrison S.
United States United States

Functions well, Extrusion is okay

The build was great, fasteners and included materials were good, The metal wasn't quite as orange as the pictures show, and the color is fading from the sun, and it's like 6 months since it was put together.

Rich B.
United States United States

Quality Upgrade for existing Prusa printer

The instructions for the kit were detailed and easy to follow. Not a project I would rush through. When you want to upgrade your existing printer instead of buying a new one, I think this is a fantastic option.

Kevin C.
United States United States

Everything Looks Great

Finally upgrading a pre-2020 printer to a Bear 2.1 printer. All the extrusions beams looks great. Had no problems with the anodization. The included parts are clearly labeled. Found a few t-nuts with no threads or burrs, but that is why you should check them.

Mpire A.
United States United States

Nice Kit!

Haven't actually assembled it yet, but unpacked the kit and it looks great. Parts are machined well and it looks complete. Can't wait to build my Bear!