Bear 2.1.0-beta0 released!
Added 2019-11-08 15:40:57 +0000 UTCBear 2.1.0-beta0 has been released! New Z axis, shorter LCD screen, new cables clips and new end caps. Now all features I wanted for 2.1 are in!
Link to release note: https://github.com/gregsaun/prusa_i3_bear_upgrade/releases
Link to dev branch on GitHub: https://github.com/gregsaun/prusa_i3_bear_upgrade/tree/dev
What's new?
New Z axis:
- Overall stiffer structure.
- Better holding of the Z smooth rod.
- Avoid alignment issue due to 90° plates.
- Easier to install and align.
- Motor is a bit higher up.
- Use M3x10 screws for motor.
- Z motor mount use only two M5 screws.
- Improve X axis ramming accuracy.
- Reduce chances or warping during print.
New end caps
- Avoid end caps breaking by using smaller and longer set screw.
- Nicer Z end caps.
- No need to thread extrusions anymore.
New LCD supports
- Shorter support to reduce printer length.
New cable clips
- Use zip ties for horizontal and vertical clips.
- Nicer look.
- Stronger fit.
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: https://guides.bear-lab.com/Wiki/Bear_FAQ#Section_Which_Full_Bear_frame_do_I_have .💡 If you have a Full Bear Upgrade 2.0 MK2S or MK2.5 frame you can find compatible parts here: https://github.com/gregsaun/prusa_i3_bear_upgrade/tree/2.1.0-beta0/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?
Here are the parts you need to (re-)print from Bear 2.1.0-alpha1 release:
- z_leadscrew_cap
- z_motor_mounts
- z_tops
- lcd_support_a
- lcd_support_b
- y_end_caps
- z_end_caps
- cable_clip_horizontal
- cable_clip_vertical
- cable_clip_lcd
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: https://github.com/gregsaun/prusa_i3_bear_upgrade/tree/dev/manual/temporary_assembly_guide
Credits
Vecko Kojchevski Z axis parts: https://www.thingiverse.com/vekoj/designs . Vecko also gave me great feedback on the Z motor mount that were useful. Thanks!
Comments
For now I didn't see any trouble or people having some. I am going to start working on the new manual now.
Grégoire Saunier
2019-11-19 20:20:44 +0000 UTCHello, your beta is in test or new design is coming? I wait your start for print this new bear 😍thanks for your job!!
Loïc Dumont
2019-11-19 20:01:16 +0000 UTCI tried to improve stiffness of Z axis so happy you could feel it as well.
Grégoire Saunier
2019-11-17 08:50:02 +0000 UTCFully updated, All is well.. Seems a tad more solid, I like it..
Mark A
2019-11-17 05:23:56 +0000 UTC
