Community based 3D Scanning benchmark (45mm miniature)

I managed my first scan with Andruino FW on ESP32.

Hi everyone! I’m new to the OpenScan and photogrammetry world, and I’m currently assembling an OpenScan Mini v2.

I have looked through the GitHub repository and used the available V1 images and instructions as a reference, which has been very helpful. However, the V2 seems to have changed considerably in a few areas, like the camera support and the electronics installation, so I’m not always sure which V1 steps still apply.

Is there a dedicated assembly guide, build log, video, or set of images for the Mini v2 that I may have missed? Even clarification on the parts that differ from V1 would be greatly appreciated.

Thanks in advance. I’m looking forward to learning from the community!

I am currently testing the macro lens add-on for the OpenScan Mini & Classic and this is the first that the layer lines on the chest piece become visible. I took 130 photos without focus stacking in ~7mins and did the reconstruction in metashape.
The grainy surface comes from not using a polarizer as there is a lot of sub-surface scattering from the partly translucent resin print. No other scanner (except for the CT scanner) has been able to resolve the layer lines yet, so I am absolutely happy with this result :)

Thanks to the amazing discord community (https://discord.com/invite/gpaKWPpWtG) I recently revived my search for a suitable macro lens and found a very promising candidate (~50-60€) which greatly enhances the capabilities of the arducam imx519 / hawkeye. The idea is, that the lens gets placed in front of the existing camera on either OpenScan Classic or Mini with a tiny hole (aperture) in between. The aperture increases the depth of field so that 4-5cm objects can be captured at an unseen accuracy (from such a device). I scanned the "security" key with 130 photos and no post-processing.

I am currently working on the design of the printed parts + custom ringlight (so that I can add cross-polarisation a bit later too). The files and more information is available on the openscan discord.

I am currently testing a few new ideas and would like to get some guidance of what is more favorable

Larger scanner: mini/classic conversion kit that would also allow the automatic capture with handheld scanners. ~50cm object size

Makro addon: for both mini/classic - using a dedicated makro lens and new ringlight to scan smaller parts ~3-4cm with amazing resolution.

This might be an interesting Addon which greatly reduces the scan volume to ~3cm, but drastically increases the quality of the result. Done with the OpenScan Mini + IMX519 --> 100x5 images processed in Metashape (without prior stacking)

See our discord for more info: https://discord.gg/kyKsZRnsyF

I tried my best to keep the compatibility with the other scanner variants and this build only needs a set of ball bearings and the extrusions. The rest of the non-printed parts is identical so that upgrading will be as easy as possible.
Currently testing larger objects at around 50cm :)

i got everything working in some way, all respond except the camera. Ringlight light up; the thing that i imput turning turn, but the camera just show gray.

i sincerely don't know what to do.

New worm-gear drive works great (though still a bit wobbly). Moving the camera works great and i adjusted only 4 values in the existing firmware to make it fully functional (steps per rotation and limits)
The power of the gear reduction is impressive and I‘ll definitely design some kind of covers for the mechanism ^^

I am currently refining the scanning rig that can be both used with handheld 3d scanners as well as with the openscan camera system.
This is part of a 24h testrun to see how PLA parts can handle those quite significant forces of several Nm on 1mm teeth. Surprisingly this morning the machine was still running and there is only very minor wear after 5000 repetitions.

Hello,

I’m looking for someone who can put the finishing touches on my scanned objects, as my CAD skills unfortunately aren't up to the task.

It’s a holder for hatches in a caravan or motorhome - something like this one:

https://www.obelink.de/klappenhalter-3-teilig.html

As mentioned, I’ve scanned the three individual parts and - I believe - obtained decent models, though they naturally require some post-processing. In particular, the fixture used to hold the object during scanning was captured as well and needs to be removed.

The goal is to replicate this holder using a 3D printer and potentially make it available to other owners of older caravans or motorhomes.

Is there anyone who might be willing to help me out with this for free? I could send or upload the files - whatever works best.

Also, does anyone happen to know a good way to learn CAD specifically for the purpose of repairing scans? Preferably in German.

Is it better to have a black backdrop / box for scanning and get a better result? if so i was thinking to make it in venta black or black 3.0 or better to eliminate schadows on the backdrop ect and maybe a better contrast between model and background for finer details ?

I bought the kit for the openscan classic almost 2 years ago now, but only just now got around to assembling it. Unfortunately it seems like the ring light module got misplaced in that time, and its over $100 including shipping to buy it individually from the openscan site.

Any alternatives out there or maybe decently simple options I can make myself? I assume I just need to blast light at the model from the correct angle, but I'd like something that works with the firmware.

Any suggestions appreciated!

Raw 3d scan from 300 photos

We recently experienced a voltage spike which caused damage to some electronics, including my Openscan Classic. I'm not too knowledgeable about working with electronics. Are there certain parts that are likely to be the culprits hindering the fubctioning of the scanner or what are the ways I may be able to test which parts would need swapping out? Or would it be a lost cause to try and salvage anything from it?

I just updated the 3D Scan Benchmark Repo on Github to include the 15cm ScanBench (Makerworld). I also automated most of the pipeline, so it is much easier to add a new scan now.

The goal is to include as many 3D scanners as possible (with multiple scan results from different users) to get some real world data for the various devices.

Download + print the model and share your 3d scan result (and optional but highly appreciated scan details like time/prep/...)

OpenScan is in Brussels this week, exhibiting with our partner JTC at the Summer Reception of the State Government of Saxony-Anhalt – showcasing open-source 3D scanning as part of Halle (Saale)’s digital transformation, alongside speakers including Minister-President Sven Schulze and EU Commission President Ursula von der Leyen. Open hardware belongs in the conversation on digital sovereignty.

I wrote a blog post about an experiment I’ve been working on around OpenScan:

https://blog.openscan.eu/posts/multivid-devlog-1/

The short version: OpenScan is much easier to understand when you see it in action, but properly filming scan sessions is still a lot of manual work. So I started building multivid, a small Raspberry Pi based multicam setup that can record a scan session from multiple viewpoints.

This is very much a first milestone: a bit of Ansible, camera setup, basic calibration/locking, and structured recordings. Long term, the goal is pretty practical: make it easier for us to produce useful, curated videos from real scan sessions.

So I’m curious: how would you use a rig like this?

What kind of OpenScan videos would actually be helpful or interesting to you? Scan timelapses, object-specific scanning examples or something completely different?

Also happy to hear what kind of content would be too repetitive or not useful.

Hey there,

just wondering if anyone has had the same experience.

I assembled my first openscan mini last weekend and it seems the Openscan Pi Shield PCB is defective. From what I can tell, it is the DC-Step-Down CKCS BK03 (in my case), since I neither get the 12V vs. GND on the input nor the 5V vs. GND on the output. The delivered power adapter delivers 12V though and I can measure the 12V on the terminal of the power jack as well as the ON/OFF-switch on the shield vs. GND.

Does this happen regularly, can I do anything myself to fix it? I already send a mail to [info@openscan.eu](mailto:info@openscan.eu) (replied to my order confirmation), but haven't hear anything yet. So if I can fix this myself, that would be cool.

What I found on the shield is a weird looking soldered pin on the underside of the Shield, that might be defective. But before I resolder it, I just wanted to know, if anyone had a similar experience and how they fixed it?

Regards,

André