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Bear Upgrade 2.1.0-rc1
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@gregsaun gregsaun released this 10 Jan 09:46
· 134 commits to master since this release
2.1.0-rc1
cf3a52d

What’s new?

New build helper

This release includes a new build helper for Y axis to help alignment of the left smooth rod with the frame. Build helper for Z axis has been redesigned to ease alignment.

Both build helpers have a special shape to avoid print artifacts like elephant foot, buldges, bad corners or uneven layers. This helps building your frame as square as possible even if your print isn’t perfect.

⚠️ Do not use the build helper for Y axis on both smooth rods. It is only designed to align left smooth rod and not to set the distance between the smooth rods.

New optional LCD cover

  • New accurate design from scratch
  • Makes the frame shorter thanks to a bevel in front
  • Eliminate vibrations
  • Easier to rotate LCD knob
  • Quicker to print and use less filament
  • Sleek design for better look
  • Optional: LCD supports compatible with stock Prusa MK3(S) frame
  • Available in several different look

Other improvements and fixes

  • Improve documentation on GitHub pages
  • Fix an issue where the shorter Bear frame 2.0 for MK2S, 2.5(S) was not able to reach the end stop on Y axis in some cases
  • Protection against elephant foot on some Y belt holders

Compatibility

This Bear Upgrade 2.1 is compatible with Full Bear Upgrade 2.0 MK3 frame. If you do not know which frame you have please check our FAQ here.

💡 If you have a Full Bear Upgrade 2.0 MK2S or MK2.5 frame you can find compatible parts here: optional_parts/bear_2.0_upgrade_mk2-2s-2.5-2.5s.

⚠️ The new Y and Z axis are not compatible with any of the existing Prusa or Bear 2.0 parts. You have to update all parts from Bear 2.1.

What should I re-print from 2.1.0-beta0 release?

Nothing needs to be reprinted except the Y belt holder for the shorter Bear 2.0 MK2(S)/MK2.5(S) frame.

What hardware is needed if I come from Bear 2.0?

Below the list is the hardware needed if you upgrade from Bear 2.0 to this new release. No changes are needed on the frame itself.

  • 1x M5x16 screw (button head ISO 7380)
  • 1x M3x30 screw (socket head ISO 4762)
  • 7x M3x25 screw (socket head ISO 4762)
  • 4x M3x18 screw (socket head ISO 4762)
  • 2x M3x14 screw (socket head ISO 4762)
  • 2x M3 square nut (DIN 562)
  • 2x M3 hex nuts DIN 934
  • 1x M3 hex nylock nut (DIN 985)
  • 1x M3 washer (DIN 125), 0.5mm thick
  • 1x Dowel pin, 2.95mm diameter, 15.8mm long (same as Bear X axis)
  • 12x M4x5mm set screw

Check temporary assembly guide to known where this hardware is used.

Thank you

  • Thank you Rebecca and Jason from LDO Motors for searching and building the best hardware for the final Bear 2.1 release. I know I can be very meticulous sometimes :D
  • Thank you to Josh Jones and Florian Daeubler for there development and tests on Bear 2.1 and future
  • Thank you to my Patreons for having tested the new LCD cover
  • Thank you to Tom Jackson for having tested the new LCD cover adaptation for orignal Prusa frame
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