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Greg Saunier @gregsaunier.bsky.social · 3d

They made a 1st bad move with the close source Pro series. This announcement is the 2nd bad move they do. The 3rd will come soon, I'm sure, and that will be the end of the Arduino brand.

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Greg Saunier @gregsaunier.bsky.social · 4d

Great to see that the CERN OHL V2 #opensource hardware license is the most used one in 2024 and 2025 so far.

If you're working on open source functional/mechanical #3dprinting projects, it is the license you should use. Others may not protect your work as they are not made for functional hardware.

Michael Weinberg @michaelweinberg.org · 4d

I shared NEW DATA about what licenses people have used for @oshwassociation.bsky.social certified hardware since 2016

michaelweinberg.org/blog/2025/10...

I put things here so they are on the internet

michaelweinberg.org

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Reposted by Greg Saunier

OSHWA @oshwassociation.bsky.social · 18d

It's almost October which means it's almost Open Hardware Month! Mark your calendars and get excited because there's going to be really amazing speakers and perhaps even some sloths during our 12hr membership livestream! How are you celebrating Open Hardware Month?
www.youtube.com/watch?v=Yn0e...

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Reposted by Greg Saunier

Brendon @brendonbuilds.bsky.social · 27d

🥳🥳🥳 CoinOp is live on @github.com! 🥳🥳🥳

3D printed open source desktop mill

No wires - spindle power and probing logic are routed through linear rails/leadscrews

Easily portable - stows extra tooling and stock internally

Compact - functional parts fit most standard printers

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Reposted by Greg Saunier

Mitch 3D @themitch22.bsky.social · Sep 7

Little update to RAD (Rod Assisted Design) OpenSCAD, angle array list. I realized I would eventually need non-uniform angles it wasn't too difficult to update. I also did some small fixes to other features so far. Also I created a large dodecahedron. github.com/themitch22/R...

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Reposted by Greg Saunier

Brendon @brendonbuilds.bsky.social · Sep 3

coming soon to @github.com

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Greg Saunier @gregsaunier.bsky.social · Aug 28

Note: xcancel.com is allowing to see threads and comments on X without account.

The Jo Prusa article: www.josefprusa.com/articles/ope...

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Greg Saunier @gregsaunier.bsky.social · Aug 28

A great post from pt of @adafruit.com following a recent article in which Jo Prusa once again claimed that open source hardware in 3D printing is dead.

Thank you @ptorrone.bsky.social ♥️

➡️ xcancel.com/ptorrone/sta...

#prusa #prusa3d #oshw #opensource #opensourcehardware

Screenshot of xcancel.com website that allows to see a X post entirely. Pt took one of the teaser written by Jo Prusa for a future product to try to address the constant attack of Prusa against open source.

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Greg Saunier @gregsaunier.bsky.social · Aug 27

leadscrew motion would do it I think. Maybe be good to select a fine pitch and eventually 0.9° stepper. Working with macro photography is quite a different world, hard to know if what I say is really a good idea to be faire.

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Greg Saunier @gregsaunier.bsky.social · Aug 27

Sorry for the delay, some rough days. For the motion, it needs to move a lot,.way.more than I thought. But I would avoid belts I think, they are probably less precise for that tasks, especially with CoreXY motion. If you can handle the backlash by always moving in one direction then a good ⤵️

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Greg Saunier @gregsaunier.bsky.social · Aug 22

Some questions to help:
1. how long the motion needs to move (in metrics please :D )?
2. what size and weight of the product you want to carry on the bed?
3. do you need motorised Z axis?
4. do you want to do static images or videos too?
5. how much your budget is limited?

(the end)

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Greg Saunier @gregsaunier.bsky.social · Aug 22

and weight are linked but in a design of a 3D printer motion system there are so many other parameters that can affect the movement that it's a lot more complex and weight can be solved in several ways.

I think before defining what motion system we need more info on what you need. ⤵️

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Greg Saunier @gregsaunier.bsky.social · Aug 22

Various type of artifacts, there is many bearings/idlers which meaning many potential failure and stacking of tolerances, the belts still need to have somewhat equal tension which is a pain, and so on. If you look at industrial printers there are not much CoreXY, for good reasons. Speed and ⤵️

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Greg Saunier @gregsaunier.bsky.social · Aug 22

I'm with @ubermeisters.bsky.social here, CoreXY is not a good motion system, not even for a 3D printer (yeah I know many will not be ok with this statement). The problem of CoreXY is the very long belts which add flex and reduce precision, the motors are fighting/working together which can bring ⤵️

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Reposted by Greg Saunier

The Crafty Maker @thecraftymaker.bsky.social · Aug 21

Finally found some time to finish my 3rd lamp design. This one is based on a design from Poland. Test printed it and the fit is spot on. Not sure about the colours though. My aim is to have it look a bit retro. What do you think?

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Greg Saunier @gregsaunier.bsky.social · Aug 22

I like it, well done!

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Greg Saunier @gregsaunier.bsky.social · Aug 20

Thanks for having shared the internals and mechanism!

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Greg Saunier @gregsaunier.bsky.social · Aug 20

oh wow thanks for proposing, I would love to collaborate with you. Unfortunately it's impossible for me at the moment. But I'm happy to share ideas and feedback. Have you seen openflexure? They have a compliant mechanism for precise movement with zero backlash.

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Greg Saunier @gregsaunier.bsky.social · Aug 19

Just seeing this list where 90%-ish are open source software made by passionate people for free trying to make the software world a better place is ♥️

Thank you to all OSS developers, maintainers, helpers, donators, funders. 💫

nixCraft @cyberciti.biz · Aug 18

List of free, open source and privacy respecting services and alternatives to privative services. github.com/pluja/awesom...

#opensource

GitHub - pluja/awesome-privacy: Awesome Privacy - A curated list of services and alternatives that respect your privacy because PRIVACY MATTERS.

Awesome Privacy - A curated list of services and alternatives that respect your privacy because PRIVACY MATTERS. - pluja/awesome-privacy

github.com

Greg Saunier @gregsaunier.bsky.social · Aug 17

Awesome, looking forward to see your next steps

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Greg Saunier @gregsaunier.bsky.social · Aug 16

I agree that it should still be possible to have different shapes easily.

In my country we have load-bearing walls with reinforced concrete (steel). But yes I've seen 3D printed walls where they add reinforcement along the print.

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Greg Saunier @gregsaunier.bsky.social · Aug 16

I'm a total noob in 3D printing construction but I think the printed walls can't support roofs, windows, doors, stairs, floor the same way as traditional houses. The walls are not reinforced concrete with steel inside. So that may restrict the shape and so price to make all calculations.

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Greg Saunier @gregsaunier.bsky.social · Aug 15

I don't think so. The vibration with timing belts can come from various issues but there is one you can't solve: the teeth and grooves have tolerances on both belt and pulleys. There is tiny variation in the meshing which results in vibration. The system you share will have the same issue I guess

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Greg Saunier @gregsaunier.bsky.social · Aug 15

Yeah I think it's over thinking the problem by doing this

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Greg Saunier @gregsaunier.bsky.social · Aug 15

The advantages of strings is that you don't have the vibrations of the timing belts teeth (which is unavoidable). However, I prefer motion system with shorter belt/string path and lower number of idlers, but that's just me. Would love to see the Sli3DR being build for sure.

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