Search found 81 matches

by OBNRacerMan
19 Jan 2020, 11:47
Forum: Structured light scanning
Topic: great project Structured Light based 3D scanner
Replies: 2
Views: 42

Re: great project Structured Light based 3D scanner

dental_art wrote:
18 Jan 2020, 15:01
NEUVISION

https://github.com/nikolaseu/neuvision

starts working with our equipment
Since I am very far from programming - it is completely unclear what to do with this ... how to install ... (* nix systems are even further for me than Windows)
by OBNRacerMan
17 Jan 2020, 13:36
Forum: Structured light scanning
Topic: HP 3D scan and 4K cameras
Replies: 11
Views: 750

Re: HP 3D scan and 4K cameras

The "window screen" of the DLP array causes noise in the surface. High end, purpose built scanners (artec Creaform etc.) seem to use single projected images that are more like projected slides. I agree - the slide will produce much less spurious noise (but at the same time they have a serious limit...
by OBNRacerMan
16 Jan 2020, 19:38
Forum: Structured light scanning
Topic: HP 3D scan and 4K cameras
Replies: 11
Views: 750

Re: HP 3D scan and 4K cameras

Nice. Did you change anything in the Projector? I saw you are able to focus at 110mm to macro scans. So this 350mm and 110mm are just moving the rig away and closer to the object? I did not redo anything in the projector, this is a feature of this model. But the minimum distance that my projector c...
by OBNRacerMan
16 Jan 2020, 16:54
Forum: Structured light scanning
Topic: Vanishing Scanning Spray
Replies: 13
Views: 1040

Re: Vanishing Scanning Spray

The problem with plastidip is that it's thick and distorts the dimensions and sharp feature of the part you are trying to scan. Ideally with scanning spray you want a very light dusting. I completely agree - the other day I had to scan a large semi-precious stone for the ring (it has a not quite st...
by OBNRacerMan
16 Jan 2020, 16:47
Forum: Structured light scanning
Topic: HP 3D scan and 4K cameras
Replies: 11
Views: 750

Re: HP 3D scan and 4K cameras

Maybe you already have wrote it in some other post. If you want to refer to some post that have a more detailed information i will be appriciated. Here on the last photo you can see the projection size from my projector at a distance of 350mm (this is a rectangle of 250x150mm size) Do you still use...
by OBNRacerMan
15 Jan 2020, 22:33
Forum: Structured light scanning
Topic: HP 3D scan and 4K cameras
Replies: 11
Views: 750

Re: HP 3D scan and 4K cameras

Your Black camera has an 1/2.5" Sensor, while the used by HP/David has 1/2.8". Sinse your camera has a smaller sensor, what is the impact on the final results comparing with an 1/2.8" sensor? The 1/2.5" sensor is larger than 1/2.8" https://static-cdn3.vigbo.tech/u54025/66440/blog/4845656/4078929/52...
by OBNRacerMan
11 Jan 2020, 16:56
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 34
Views: 2034

Re: Noob question on SLS

If madding likes the PF50 I will get one to try. Yes, I am also very interested in how such a projector as a part of a 3D scanner will show itself. I found this on AliExpress (but buying from this year is already much more difficult - they imposed a limit of 200 euros on purchases in foreign online...
by OBNRacerMan
11 Jan 2020, 13:38
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 34
Views: 2034

Re: Noob question on SLS

Good to know OBN, can you please show where you can find all these informations about matrices? When I was picking up a projector for a 3D scanner, I read a lot of information on "projector" forums, where I found out that cheap FullHD DLPs have high-frequency matrix shift technology (120Hz) in orde...
by OBNRacerMan
11 Jan 2020, 09:51
Forum: Structured light scanning
Topic: Noob question on SLS
Replies: 34
Views: 2034

Re: Noob question on SLS

mading wrote:
10 Jan 2020, 19:51
LG PF50 has square pixels.
1920*1080.
I don’t know how the scanning of this projector will affect the fact that a high resolution is obtained by shifting the matrix (the matrix size is 0.33 inches there)
“Correct” FullHD starts with 0.46 inch matrices
by OBNRacerMan
10 Jan 2020, 23:06
Forum: Show your latest scan
Topic: Ducati Scans
Replies: 9
Views: 193

Re: Ducati Scans

Micr0 wrote:
10 Jan 2020, 21:24
and I don't know how to get a poly count from David
HP3Dscan has a small button showing the properties of an object (or detailed information on several objects, if selected)
hp3dscan_04.jpg
small blue button
hp3dscan_05.jpg
properties of a large number of objects