Greg Saunier
@gregsaunier.bsky.social
Bear Upgrades designer. I also share informative content on 3D printing and open source.
#3dprinting #opensource #engineering #mechanical
https://ekunn.com
https://github.com/gregsaun
https://patreon.com/gregsaun
https://fosstodon.org/@bear_lab
#3dprinting #opensource #engineering #mechanical
https://ekunn.com
https://github.com/gregsaun
https://patreon.com/gregsaun
https://fosstodon.org/@bear_lab
Pinned
Thank you so much for all your comments, likes, talks and support ❤️
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
H A P P Y N E W Y E A R 🎉
a group of bears are laying on the ground and one of them says hi
Alt: a group of bears are laying on the ground and one of them says hi
media.tenor.com
January 1, 2026 at 8:28 AM
H A P P Y N E W Y E A R 🎉
Reposted by Greg Saunier
December 30, 2025 at 4:41 PM
Reposted by Greg Saunier
US Supporters: If you like to do your tax-deductible gifts during the last few days of December, we'd be honored to be counted amongst the charities you choose to support this year 💝 Your donations help us support #PythonForEveryone!
donate.python.org/
donate.python.org/
December 29, 2025 at 12:15 PM
US Supporters: If you like to do your tax-deductible gifts during the last few days of December, we'd be honored to be counted amongst the charities you choose to support this year 💝 Your donations help us support #PythonForEveryone!
donate.python.org/
donate.python.org/
Reposted by Greg Saunier
Merry Christmas! I hope you like my free gift this year. 🎁Its Print-in-Place version of Gift Box #23. 🎅
It maybe the best box of the year and its so cool to pull it off the printer with no assembly required.
Free on @printables.bsky.social
www.printables.com/model/152838...
It maybe the best box of the year and its so cool to pull it off the printer with no assembly required.
Free on @printables.bsky.social
www.printables.com/model/152838...
December 25, 2025 at 7:13 PM
Merry Christmas! I hope you like my free gift this year. 🎁Its Print-in-Place version of Gift Box #23. 🎅
It maybe the best box of the year and its so cool to pull it off the printer with no assembly required.
Free on @printables.bsky.social
www.printables.com/model/152838...
It maybe the best box of the year and its so cool to pull it off the printer with no assembly required.
Free on @printables.bsky.social
www.printables.com/model/152838...
Thank you so much for all your comments, likes, talks and support ❤️
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
December 24, 2025 at 6:46 AM
Thank you so much for all your comments, likes, talks and support ❤️
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
I wish you all a wonderful Christmas and a happy New Year. Take care of yourselves and your loved ones. 💫🎉🎁
I think this is absolutely useful for 3D printing but we should also improve our design to reduce variations. Yes this is possible given the current cost of DIY machines; some parts of the printer would become cheaper, while others would become more expensive. ⤵️
Calibrating a Printer with Computer Vision and Precise Timing
Calibrating a Printer with Computer Vision and Precise Timing
Hackaday Article
hackaday.com
December 23, 2025 at 9:04 PM
I think this is absolutely useful for 3D printing but we should also improve our design to reduce variations. Yes this is possible given the current cost of DIY machines; some parts of the printer would become cheaper, while others would become more expensive. ⤵️
Reposted by Greg Saunier
Inspired by Prusa's new license "for the maker community", OCL, I'm introducing it's long-awaited sequel, SOCL!
Like Hollow Knight Silksong, it promises to be an improvement over its prequel in every way.
Looking forward to community adoption and feedback!
github.com/theacodes/socl
Like Hollow Knight Silksong, it promises to be an improvement over its prequel in every way.
Looking forward to community adoption and feedback!
github.com/theacodes/socl
December 22, 2025 at 11:25 PM
Inspired by Prusa's new license "for the maker community", OCL, I'm introducing it's long-awaited sequel, SOCL!
Like Hollow Knight Silksong, it promises to be an improvement over its prequel in every way.
Looking forward to community adoption and feedback!
github.com/theacodes/socl
Like Hollow Knight Silksong, it promises to be an improvement over its prequel in every way.
Looking forward to community adoption and feedback!
github.com/theacodes/socl
Gears 😍
Gift Box #1 and #7 had a baby and it may not only be the most complex mechanism I put in a gift box yet, but its probably the hardest one to solve. There is also the most satisfying snap.
Printed in @zombiehedgehog.com amazing @polymaker.bsky.social PLA.
Link: than.gs/m/1481685
Printed in @zombiehedgehog.com amazing @polymaker.bsky.social PLA.
Link: than.gs/m/1481685
December 21, 2025 at 10:32 PM
Gears 😍
Reposted by Greg Saunier
If you fancy a gear box on the back of your presents, then Gift Box #23 might be the one for you! The center of the bow spins with the sun gear unlatching the top. The top prints in place, bows are printed separately for color.
Download: than.gs/m/1481295
Download: than.gs/m/1481295
December 20, 2025 at 3:23 PM
If you fancy a gear box on the back of your presents, then Gift Box #23 might be the one for you! The center of the bow spins with the sun gear unlatching the top. The top prints in place, bows are printed separately for color.
Download: than.gs/m/1481295
Download: than.gs/m/1481295
It's true, PLA-CF is mostly useless, it's hard to find an advantage over regular PLA. "I built a thing" shows what happens in details with electron microscope and CT scanner as well as physical testing. Impressive images!
➡️ www.youtube.com/watch?v=w7Jp...
#3dprinting #pla #pla-cf #cf #filament
➡️ www.youtube.com/watch?v=w7Jp...
#3dprinting #pla #pla-cf #cf #filament
3D Printing’s Biggest Scam Is Even Worse Than We Thought!
YouTube video by I built a thing
www.youtube.com
December 20, 2025 at 10:39 AM
It's true, PLA-CF is mostly useless, it's hard to find an advantage over regular PLA. "I built a thing" shows what happens in details with electron microscope and CT scanner as well as physical testing. Impressive images!
➡️ www.youtube.com/watch?v=w7Jp...
#3dprinting #pla #pla-cf #cf #filament
➡️ www.youtube.com/watch?v=w7Jp...
#3dprinting #pla #pla-cf #cf #filament
Reposted by Greg Saunier
This is not an open source licence. oshwa.org/resources/op...
December 19, 2025 at 4:38 PM
This is not an open source licence. oshwa.org/resources/op...
Reposted by Greg Saunier
I really wish Prusa had tried to work with OSI, CC, and/or OSHWA instead of greenfielding a new license.
Even if the principle behind this license wasn't misguided, I don't think it's precise enough to legally accomplish any of the goals Prusa stated.
Please don't use this.
Even if the principle behind this license wasn't misguided, I don't think it's precise enough to legally accomplish any of the goals Prusa stated.
Please don't use this.
We're open-sourcing the full CAD files of the CORE One and CORE One L, released under a new license we built for the maker community. Read more about it in Josef's new article: blog.prusa3d.com/core-one-cad...
December 19, 2025 at 4:19 PM
I really wish Prusa had tried to work with OSI, CC, and/or OSHWA instead of greenfielding a new license.
Even if the principle behind this license wasn't misguided, I don't think it's precise enough to legally accomplish any of the goals Prusa stated.
Please don't use this.
Even if the principle behind this license wasn't misguided, I don't think it's precise enough to legally accomplish any of the goals Prusa stated.
Please don't use this.
⚠️ FACT CHECKING : A licence with a non-commercial aspect cannot be considered as open source. Prusa is NOT open-sourcing the Core One. Prusa is misleading us once again.
- OSI rule #1: opensource.org/osd
- OSHWA rule #5: oshwa.org/resources/op...
- Wikipedia: en.wikipedia.org/wiki/Open_so...
- OSI rule #1: opensource.org/osd
- OSHWA rule #5: oshwa.org/resources/op...
- Wikipedia: en.wikipedia.org/wiki/Open_so...
December 19, 2025 at 2:50 PM
⚠️ FACT CHECKING : A licence with a non-commercial aspect cannot be considered as open source. Prusa is NOT open-sourcing the Core One. Prusa is misleading us once again.
- OSI rule #1: opensource.org/osd
- OSHWA rule #5: oshwa.org/resources/op...
- Wikipedia: en.wikipedia.org/wiki/Open_so...
- OSI rule #1: opensource.org/osd
- OSHWA rule #5: oshwa.org/resources/op...
- Wikipedia: en.wikipedia.org/wiki/Open_so...
Reposted by Greg Saunier
Der8auer's CNC factory, featuring water jets and lasers. www.youtube.com/watch?v=VFZL...
Der8auer Has Gone Mad with Power | Heatsink Manufacturing | Made in Germany
YouTube video by Gamers Nexus
www.youtube.com
December 13, 2025 at 10:30 PM
Der8auer's CNC factory, featuring water jets and lasers. www.youtube.com/watch?v=VFZL...
Reposted by Greg Saunier
I think gift box #23 has some bridging @gregsaunier.bsky.social would appreciate.
December 12, 2025 at 2:22 PM
I think gift box #23 has some bridging @gregsaunier.bsky.social would appreciate.
Reposted by Greg Saunier
Looking to run a CAN-FD bus over 40m long on your Duet3D controlled system? We have updated our bootloaders to make that even easier.
Who has the largest Duet3D controlled machine?
docs:
docs.duet3d.com/en/User_manu...
bootloaders:
github.com/Duet3D/Duet3...
Who has the largest Duet3D controlled machine?
docs:
docs.duet3d.com/en/User_manu...
bootloaders:
github.com/Duet3D/Duet3...
December 11, 2025 at 1:19 PM
Looking to run a CAN-FD bus over 40m long on your Duet3D controlled system? We have updated our bootloaders to make that even easier.
Who has the largest Duet3D controlled machine?
docs:
docs.duet3d.com/en/User_manu...
bootloaders:
github.com/Duet3D/Duet3...
Who has the largest Duet3D controlled machine?
docs:
docs.duet3d.com/en/User_manu...
bootloaders:
github.com/Duet3D/Duet3...
He's a great man! Huge respect!
Building the PERFECT Linux PC with Linus Torvalds.
Watch full episode on YouTube www.youtube.com/watch?v=mfv0...
Watch full episode on YouTube www.youtube.com/watch?v=mfv0...
Building the PERFECT Linux PC with Linus Torvalds
YouTube video by Linus Tech Tips
www.youtube.com
December 1, 2025 at 8:03 AM
He's a great man! Huge respect!
Reposted by Greg Saunier
Open source project keeps old Nest thermostats working after Google has ended support #Nest, #NoLongerEvil, #OpenSource, #PlannedObsolescence, #SmartThermostat
Open source project keeps old Nest thermostats working after Google has ended support
Last month Google pulled the plug on cloud features and services for the first and second-gen Nest Learning Thermostats. That means that while you could still use them for basic functions like controlling your heating and cooling systems manually, you could no longer login from a mobile device or web browser to check status, adjust controls, or receive notifications. While it's not surprising to see Google end support for a product that's more than a decade old, it
liliputing.com
November 28, 2025 at 7:28 PM
Open source project keeps old Nest thermostats working after Google has ended support #Nest, #NoLongerEvil, #OpenSource, #PlannedObsolescence, #SmartThermostat
Have you ever had a spool of PLA filament that snap in your hand like uncooked spaghetti? Or perhaps the filament broke inside the PTFE tube? Why does this happen, and how can it be avoided?
Explanations here: ekunn.com/blog/2025/11...
© cover image: Zack Freedman
#3dprinting #pla #filament
Explanations here: ekunn.com/blog/2025/11...
© cover image: Zack Freedman
#3dprinting #pla #filament
Why Does PLA Filament Sometimes Snap Like Spaghetti?
Have you ever had a spool of PLA filament that snap in your hand like uncooked spaghetti? Or perhaps the filament broke inside the PTFE tube? Why does this happen, and how can it be avoided?
ekunn.com
November 27, 2025 at 6:16 PM
Have you ever had a spool of PLA filament that snap in your hand like uncooked spaghetti? Or perhaps the filament broke inside the PTFE tube? Why does this happen, and how can it be avoided?
Explanations here: ekunn.com/blog/2025/11...
© cover image: Zack Freedman
#3dprinting #pla #filament
Explanations here: ekunn.com/blog/2025/11...
© cover image: Zack Freedman
#3dprinting #pla #filament
Reposted by Greg Saunier
I made a single collection for all twenty of my Puzzle Presents on Printable's which is now 30% off for their Black Friday sale. These things make the best gifts, just throw some candy or some other prints inside.
Download: www.printables.com/model/111969...
youtu.be/pMHRgl8KO_k
Download: www.printables.com/model/111969...
youtu.be/pMHRgl8KO_k
19 Gift Boxes in 60 seconds
YouTube video by 3D Printing World
youtu.be
November 25, 2025 at 12:01 PM
I made a single collection for all twenty of my Puzzle Presents on Printable's which is now 30% off for their Black Friday sale. These things make the best gifts, just throw some candy or some other prints inside.
Download: www.printables.com/model/111969...
youtu.be/pMHRgl8KO_k
Download: www.printables.com/model/111969...
youtu.be/pMHRgl8KO_k
Reposted by Greg Saunier
SOS!! Share far and wide! The US Patent Office is working to make bad patents untouchable and that’s a problem for open source hardware! Read through EFF statement and get your comments in ASAP to help prevent this www.eff.org/deeplinks/20...
The Patent Office Is About To Make Bad Patents Untouchable
The U.S. Patent and Trademark Office (USPTO) has proposed new rules that would effectively end the public’s ability to challenge improperly granted patents at the Patent Office itself. We need EFF sup...
www.eff.org
November 24, 2025 at 4:06 PM
SOS!! Share far and wide! The US Patent Office is working to make bad patents untouchable and that’s a problem for open source hardware! Read through EFF statement and get your comments in ASAP to help prevent this www.eff.org/deeplinks/20...
Reposted by Greg Saunier
First Release Candidate for FreeCAD 1.1
This represents the past year of work of nearly 300 developers, over 100 translators, and hundreds of documentation writers, testers, bug submitters, and other team members.
github.com/FreeCAD/Free...
#FreeCAD #CAD #CAM #3Dprinting #opensource #maker
This represents the past year of work of nearly 300 developers, over 100 translators, and hundreds of documentation writers, testers, bug submitters, and other team members.
github.com/FreeCAD/Free...
#FreeCAD #CAD #CAM #3Dprinting #opensource #maker
Release FreeCAD 1.1 Release Candidate 1 · FreeCAD/FreeCAD
This is the first complete build of FreeCAD 1.1, representing the past year of work of nearly 300 developers, over 100 translators, and hundreds of documentation writers, testers, bug submitters, a...
github.com
November 26, 2025 at 5:19 AM
First Release Candidate for FreeCAD 1.1
This represents the past year of work of nearly 300 developers, over 100 translators, and hundreds of documentation writers, testers, bug submitters, and other team members.
github.com/FreeCAD/Free...
#FreeCAD #CAD #CAM #3Dprinting #opensource #maker
This represents the past year of work of nearly 300 developers, over 100 translators, and hundreds of documentation writers, testers, bug submitters, and other team members.
github.com/FreeCAD/Free...
#FreeCAD #CAD #CAM #3Dprinting #opensource #maker
This is the internal design of the future E3D high speed nozzles, called the FUGE! Unlike the CHT ones, there is no more channelling. Instead, the filament core is warmed up by altering its path while maintaining the same surface area throughout. This is an application of the E3D patent from 2020.
November 20, 2025 at 9:22 PM
This is the internal design of the future E3D high speed nozzles, called the FUGE! Unlike the CHT ones, there is no more channelling. Instead, the filament core is warmed up by altering its path while maintaining the same surface area throughout. This is an application of the E3D patent from 2020.
You will obviously notice the close resemblance to Bambu printers. It seems that the enormous quantity of recent BambuLab patents doesn't affect the competition that much. It's not surprising as the patent system in China seems to have different goals; let's see how it evolves in the coming months.
AnyCubic has achieved an impressive level of integration with its Kobra X 3D printer. It doesn't require an AMS-like system; it can handle everything in the toolhead! It also features an automatic filament gears tensioning system. I want to see a teardown!
➡️ www.youtube.com/watch?v=PjSN...
➡️ www.youtube.com/watch?v=PjSN...
AnyCubic Kobra X
YouTube video by 123-3D
www.youtube.com
November 20, 2025 at 7:41 AM
You will obviously notice the close resemblance to Bambu printers. It seems that the enormous quantity of recent BambuLab patents doesn't affect the competition that much. It's not surprising as the patent system in China seems to have different goals; let's see how it evolves in the coming months.
AnyCubic has achieved an impressive level of integration with its Kobra X 3D printer. It doesn't require an AMS-like system; it can handle everything in the toolhead! It also features an automatic filament gears tensioning system. I want to see a teardown!
➡️ www.youtube.com/watch?v=PjSN...
➡️ www.youtube.com/watch?v=PjSN...
AnyCubic Kobra X
YouTube video by 123-3D
www.youtube.com
November 20, 2025 at 7:02 AM
AnyCubic has achieved an impressive level of integration with its Kobra X 3D printer. It doesn't require an AMS-like system; it can handle everything in the toolhead! It also features an automatic filament gears tensioning system. I want to see a teardown!
➡️ www.youtube.com/watch?v=PjSN...
➡️ www.youtube.com/watch?v=PjSN...