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Posts by Jon Charnas

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So I did that. It was fun, and it's still not done. #3dprinter #voron #toolchanger #firstprint #detailsmatter some details on my blog www.goeland86.ch for the macro adjustments I had to make to the excellent open source ones available. Yes video is sped up 4x, didn't want to bore you.

1 week ago 3 0 0 0

TIL there are electric strollers. I didn't know they were a thing. I made a joke about them. Then my inlaws thought it was hilarious. And long story short, enjoy the output of a couple of hours of work with AI: test.goeland86.ch/stroller.html

4 weeks ago 0 0 0 0
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Sign the Petition Stop Google from limiting APK file usage

Google's going insane. I use @grapheneos.org on my Pixel because I'm tired of providing data to a company who's done their best to erase from history the fact that 2 decades ago their motto was "don't be evil". Don't let them go too far down #enshitification boulevard.

c.org/sMNnqZyyp8

1 month ago 0 0 0 0
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In our latest LightBurn 2.1.00 Release Candidate, we've added initial support for EZCad3-based Galvo lasers.

Visit our blog for full details and to get the download link:
LightBurnSoftware.com/News

1 month ago 0 1 0 0

Hmm. But wouldn't you just as likely create a black hole if you kept on adding mass into a finite volume? Either way, not a desirable outcome ๐Ÿ˜

1 month ago 1 0 0 0

*hope, bloody autocorrect

1 month ago 0 0 0 0

I wonder how you came to your second conclusion about explosions. I how it wasn't empirical testing ๐Ÿ˜‚

1 month ago 1 0 2 0
Photo of a screen of a live image gentoo with a terminal running a dd command to duplicate a disk onto another

Photo of a screen of a live image gentoo with a terminal running a dd command to duplicate a disk onto another

When you find out your ssd is dying and need to run a backup. Be cause you then realize this is a #gentoo #linux installation you've updated and migrated across different computers since 2003...

1 month ago 0 1 0 0
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youtu.be/ntFIv-N2rS8?...

The wait is over โ€” MillMage is here!
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1 month ago 1 2 1 0
Getting the Valve Index Working on Gentoo Linux: A Complete Guide โ€“ Welcome to a nerd's musings

Claude's been a fun debugging/research tool for various #Linux problems.

Today's project? Running Steam #VR on the Valve Index on #Gentoo.

Here's the various bits of help Claude helped me summarized as a blog post for others to find:
goeland86.ch/2026/02/22/g...

1 month ago 1 0 0 0
MillMage Launching 2/24/26! New Software for CNC Routers from the Makers of LightBurn
MillMage Launching 2/24/26! New Software for CNC Routers from the Makers of LightBurn YouTube video by LightBurn Software

I... may be having more fun at work than I should: youtu.be/L4swYR1XFnU?...
#cnc #cam #control #millmage

2 months ago 1 0 0 0

Understood. Maybe a video call at some point? Right now it's anyway holiday season.

Happy holidays and we'll figure something out in the new year ๐Ÿ˜๐ŸŽ„

3 months ago 2 0 1 0

Happy to meet in person at some point if you're interested ๐Ÿ˜Š

But yes I want to put that design over the finish line ๐Ÿ˜ฌ

3 months ago 0 0 1 0

Yes, near Geneva ๐Ÿ˜‰

And my background is as a software engineer, so I took lessons from several years of experimentation with a large kossel based frame and made the whole thing work somehow. But it's to get it over the finish line into a proper product that I have trouble ๐Ÿ˜‰

3 months ago 1 0 1 0

Yeah I know. The guy behind the design has come by multiple times at the workshop. I'm helping him with a project of his ๐Ÿ˜ his comment about it though, is that the M4 thread is really fragile.

I may try it, but you can get the pzprobe without the heatsink. I have one, just no idea how to mount it.

3 months ago 1 0 1 0
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Swiss3Dc Starlex DHB Hot-end extruder for 3d printers upgrade Starlex DHB Quick Swap Tool Free Nozzles in Seconds. 3D Printers Upgrade as Drop In Replacement, or Customized High Flow Rate With Up To 33mm Melt Zone, Bringing a Flawless 33mm3/s. Available For Ma...

I saw it. But I use the swiss3dc.com nozzles and I'm already hitting nearly 50mm3/s.

The nozzle itself is so much cheaper, I don't see the point in changing.

3 months ago 1 0 1 0

Yes, but the duet smart effector is also the wrong type of effector to mount a toolhead that's rigid enough. The thin pcb will flex if you go at it with any modern print speeds, or if the filament tube happens to pull a bit more than expected.

And yes, I want to stop using under the bed piezo.

3 months ago 1 0 1 0
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No, I don't. I used to use piezos under the bed at anchor points (from precision piezo, but he's not responding to emails anymore).

What I would like is a way to use a load cell or e3d's pzprobe which has the piezo in the hotend. But I don't use revo because it's just too limiting on the flow rate

3 months ago 0 0 1 0

Mostly how to create a system that stays lightweight, reliable and precise, and incorporates nozzle touch probing... I use G10 as a bed plate for aggression and limit thermal expansion. Benefit is, it limits cost too. But under the bed piezo sensors aren't happy Auth the finished part load ๐Ÿ˜ฌ

3 months ago 0 0 1 0

Oh the issue isn't with the large aspects of it. It's with creating an extruder that's minutes on a horizontal tool head. Every commercial extruder at present is based on a vertical tool plate to mount on...

I've already built and sold a few units with 350x800mm build volume ๐Ÿ˜…

3 months ago 0 0 1 0

Oh I know. But sometimes bouncing ideas off another human being is better than doing it with a rubber duck ๐Ÿ˜‰

3 months ago 1 0 1 0

I would love to have an in depth discussion about this, I am still struggling to finalize some design decisions for my large delta design.

3 months ago 3 0 2 0

What I'm saying is, he's trying. And doing the best of a shitty position to be in. Aside from the printers being oshw, he's still financing prusaslicer for how many companies benefiting?

Is he clear about that? Not really. Can we wish his printers were fully open? Yes. But can I blame him? No.

3 months ago 0 0 0 0

Blaming prusa for playing that game, and trying to keep being open, is not fair. Why didn't you complain about e3d when revo stopped being open? Or Chinese companies who basically stopped sharing firmware based on GPL code? There's much better placed outrage than this in this industry.

3 months ago 0 0 1 0

I believe the question is irrelevant. The industry as a whole has stopped releasing oshw files, aside from community projects like voron, ratrig and the like.

You won't find oshw printerd released in the last 3 years being sold ready to print anymore. It sucks but it's the new reality.

3 months ago 0 0 1 0

And when was the last Chinese oshw printer released? The only one that ever played that have was creality while Naomi Wu was on their case about it. She hasn't been for a few years and everything went closed source and proprietary.

3 months ago 0 0 1 0

Voron is not a company. You can't buy a printer from voron directly.

Lulzbot is not an open licence either, they may have been in the past, but no longer. They only provide an open hardware assembly instruction manual, which is more about right to repair.

3 months ago 0 0 1 0
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*as open as possible.

I've run into the difficulty of being open while not inviting ruin with a lot of my custom printer design. In the end I settled for keeping my delta extruder secret sauce and making the rest of the machine open source.

The extruder is the one thing not easily copied.

3 months ago 0 0 1 0

And yet it's still a lot more open than some other players in the field. Bambu, for example, has patented as much as they can on their machines, and made everything proprietary.

Prusa is trying to be as keen as he can without risking his business. It's a hard line to walk. I would know.

3 months ago 0 0 1 0

Correct. The non open source (i.e. Patented or patent pending designs) will get blocked from sale by filing WTO complaints if there's no license agreement. Typical example is E3D with the Revo CHT where they got a license from bondtech to use the CHT system. No cht clone can be sold because of it.

3 months ago 0 0 1 0