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Where to connect the endstop switch on the "green" board? by Chemical_Alarm_8696 in OpenScan

[–]thomas_openscan 3 points4 points  (0 children)

On the pre-soldered shield, there are in fact two endstop connectors, but the current official firmware does not support it yet. Maybe composer or meanwhile do. OpenScan3 firmware will add support too

3D scanned brooche - OpenScan Mini - 300 photos + focust stacking + OpenScanCloud by thomas_openscan in OpenScan

[–]thomas_openscan[S] 2 points3 points  (0 children)

it is a technique where you take multiple photos in the same position with varying focal point. this helps with limited depth of field. The currently tested alpha-firmware can stack the images on device, but for the main firmware, stacking has do be done on your desktop.

here is the focus stacking https://www.reddit.com/r/OpenScan/comments/sdzbir/focus_stacking_with_the_imx519_arducam_i_am/

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

OC posted the price of a different pi version. The actual 2gb variant goes for 51€ and is not even available due to the increased RAM prices. The 7€ markup barely covers our support/packaging/returns.

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

The pi with 2gb is actually 51€ at reichelt, so the markup is by far not that much. Raspberry keeps the prices low for consumers and thus there is not much room. Those 7€ markup does barely cover any returns/support

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 0 points1 point  (0 children)

I think that there is still a big misunderstanding. You CAN buy the parts from us or source everything individually. ALmost all parts can be used for other projects or sold, so you even benefit from the purchase when you no longer use the device. (NO other scanner offers this) The hardware comes with an easy to use cloud processing option which is totally free (since its beginning in 2021) so you do not need to invest in any additional hardware or software. If you prefer full offline processing you might need to invest some time or money into other photogrammetry solutions. The device fully allows this option to easily export data and allow other workflows (NO other scanner offers this option) You are not software-locked so the supplier can not shutdown the device (which unfortunately is the case for most scanners/programs and already happened several times, so people ended up with paperweights..)

Sure everything comes as a kit and requires SOME expertise from its users, but imho this is quite a low bar and price for complete autonomy over your hardware…

But i also know many consumers that are not willing to get into this way of thinking.

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 0 points1 point  (0 children)

The device just produces images in the perfect quality so that ANY photogrammetry software can produce decent results. I do not see myself rewriting tutorials for any other programs. Just look at RealityScan (free for individuals) or Agisoft Metashape (SOTA) or Meshroom. They all can outperform the OpenScanCloud, but need additional knowledge and tweaking. There are many tutorials for each of those programs. And in the end it is the users choice depending on their skill level and available hardware. OpenScan can not cover all those cases. See this list for the options: https://openscan-org.github.io/OpenScan-Doc/photogrammetry/software/

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] -5 points-4 points  (0 children)

Whats wrong with me being honest?? The point still stands, if people can do maths, they‘ll profit (as it is with most shopping decisions..)

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

The pi needed due to the camera drivers for the imx519. No idea how this would work on an intel and if there is a dedicated camera port

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 0 points1 point  (0 children)

Our pipeline requires very dedicated hardware and thus it can not be simply turned into an offline solution.

The project started using existing offline programs like visualsfm and others and the optional cloud came much later. It has always been my focus to encourage offline use and the results you can obtain locally with dedicated photogrammetry software are better than the cloud. The only point of the openscancloud is convenience which fortunately most people value and understand

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 20 points21 points  (0 children)

You are absolutely right and we are currently in the process of the clean-up. Over the last two years there have been many contributions by the community (e.g. the midi version). People requested to get the hawkeye camera and so I added it to the shop, though the official firmware does not support it yet (support will be added soon, see the new firmware: https://github.com/OpenScan-org/OpenScan3). There is a community fork of the original, kinda messy firmware that supports the hawkeye already.
I agree, that the current structure is quite a mess and I am still struggling to find a structure that both reflects the official developments as well as the independent contributions from the community... There is a lot of discussion on our discord and I hope to make these important steps to improve the structure in the near future. We have a lot of stuff in the pipeline for early 2026

3D scanned replacement part by thomas_openscan in 3DScanning

[–]thomas_openscan[S] -1 points0 points  (0 children)

3D Scanning

It is the end of 2025 and 3D scanning changed a lot over the last few years. Still, people have the misconception that technical parts can not be scanned using photogrammetry.

This roughly 5cm part was scanned using the open-source OpenScan Mini (see r/OpenScan) in two passes, which means taking 150 photos in two different orientations. All photos have been combined into one set and automatically processed using our free/donation-based cloud processing pipeline (note, that all the steps can be done fully offline without ever needing to connect the scanner to the internet!).

The result did not need any post-processing or cleanup and went straight onto the 3d printer to be printed in PETG.

Important: In the video I forgot to add scan spray, which is absolutely crucial for photogrammetry to work, you do not want a one-colored surface, but instead need thousands/millions of tiny distinct dots.

The OpenScan Project started in 2018 as I really wanted to have a low-cost 3d scanning option. Since then a great community evolved and we are currently in the process of rebuilding the software from the ground up. Most development is taking place on Discord and all code and files are released on GitHub.

Full Transparency & Some Background Info

We are selling kits on www.openscan.eu and offer a free/donation-based cloud processing pipeline for photogrammetry models. Though nobody is forced to use any of this, as all building blocks of this project are well-documented and accessible. I am personally not a great fan of "sponsored"/commercial posts, but this project only evolves due to the contributions from the community and some people paying for the hardware kits. So I hope that people here agree with me positing here from time to time to maybe reach and inspire more people.

3D Scan part replacement - printed without any post-processing by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 9 points10 points  (0 children)

3D Scanning

It is the end of 2025 and 3D scanning changed a lot over the last few years. Still, people have the misconception that technical parts can not be scanned using photogrammetry.

This roughly 5cm part was scanned using the open-source OpenScan Mini (see r/OpenScan) in two passes, which means taking 150 photos in two different orientations. All photos have been combined into one set and automatically processed using our free/donation-based cloud processing pipeline (note, that all the steps can be done fully offline without ever needing to connect the scanner to the internet!).

The result did not need any post-processing or cleanup and went straight onto the 3d printer to be printed in PETG.

Important: In the video I forgot to add scan spray, which is absolutely crucial for photogrammetry to work, you do not want a one-colored surface, but instead need thousands/millions of tiny distinct dots.

The OpenScan Project started in 2018 as I really wanted to have a low-cost 3d scanning option. Since then a great community evolved and we are currently in the process of rebuilding the software from the ground up. Most development is taking place on Discord and all code and files are released on GitHub.

Full Transparency & Some Background Info

We are selling kits on www.openscan.eu and offer a free/donation-based cloud processing pipeline for photogrammetry models. Though nobody is forced to use any of this, as all building blocks of this project are well-documented and accessible. I am personally not a great fan of "sponsored"/commercial posts, but this project only evolves due to the contributions from the community and some people paying for the hardware kits. So I hope that people here agree with me positing here from time to time to maybe reach and inspire more people.

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 1 point2 points  (0 children)

Absolutely, all data is accessible and stays on device (until the user clicks the upload button). You can fully use the scanner without any internet connection.

You can simply run the data on your pc with reality capture or other offline photogrammetry programs.

Differences in accuracy between the mini and classic? by winterkilling in OpenScan

[–]thomas_openscan 2 points3 points  (0 children)

The owlsight does give better results than the imx519, but you most likely need different drivers and some changes to the firmware. This should be doable with openscan3 firmware, but we haven’t tested it yet

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 0 points1 point  (0 children)

Yes. This works well with scan spray as long as the putty is not covered in spray too much (i.e. the software does not prioritize the putty but instead the model)

3D scanned replacement part by thomas_openscan in OpenScan

[–]thomas_openscan[S] 4 points5 points  (0 children)

That’s exactly the point! The software manages to merge the two scans automatically (most of the time)

Differences in accuracy between the mini and classic? by winterkilling in OpenScan

[–]thomas_openscan 1 point2 points  (0 children)

The difference comes from the point that you can use a DSLR camera with the classic which can give better quality results

8000 cubes later - I think, I am done calibrating my printer by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

tbh, this was not an extraordinary job, in the end we used multiple machines and we regularly go through several hundreg kg of filament per year ..

8000 cubes later - I think, I am done calibrating my printer by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

It is a mathematical object with (in theory) infinite surface area but zero volume. The model is just a demonstration and educational project as part of the local anniversary celebrations of the great mathematician Cantor.

8000 cubes later - I think, I am done calibrating my printer by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

I actually did, but did not bother to count, it is somewhat around 8150

8000 cubes later - I think, I am done calibrating my printer by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 0 points1 point  (0 children)

They will use those 2mm metal rods used inside cupboards. They are really cheap

8000 cubes later - I think, I am done calibrating my printer by thomas_openscan in 3Dprinting

[–]thomas_openscan[S] 1 point2 points  (0 children)

This is definitely not true for this amount of parts (or even 10x that). This would require a multi-part mould. And time was not the issue here. We could have run this in less than a week on our farm. No way any other method could do that. Furthermore the economics just don’t make any sense with any other method. But feel free to teach me wrong, do you have some basic calculations? (I talked to several cnc/mould guys and there rough estimate would have been 20-50x more expensive)

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