A challenge : macro scanning

What have you scanned recently?
NARMELLA

A challenge : macro scanning

Post by NARMELLA »

Hi

Let's see in this topic , how deep we can go to a depth of less than a millimeter.

Narmella.
NARMELLA

Re: A challenge : macro scanning

Post by NARMELLA »

I have started by using david laser scanner to go deep.

However it was not enough.

.
LS_SC_01.png
MACRO03.png
MACRO02.png
Last edited by NARMELLA on 29 Mar 2021, 06:25, edited 1 time in total.
NARMELLA

Re: A challenge : macro scanning

Post by NARMELLA »

And the last one was a 1 mm needle.

But seems not enough yet.

.
1mm-NEEFLE.jpg
.

Let's go deeper.

Narmella
mading
Posts: 307
Joined: 31 Jan 2017, 13:09

Re: A challenge : macro scanning

Post by mading »

Hi Narmella!
Good to see you are still active.
What is the average scannin time of one of these macro scan?
Would you mind to show the scans after alignment and before fusion?

How can you focus the projector on such a small area?

So many questions.. The quality of the pictures asks for them!
:-)
LG PF50, LG PF1500, RangeVision DIY: 2x DahengMer630, 2X12 and 2X16 mm 5Mp ZK lenses, RV turntable
NARMELLA

Re: A challenge : macro scanning

Post by NARMELLA »

mading wrote: 29 Mar 2021, 12:34 Hi Narmella!
Good to see you are still active.
...
Hi , me too .

Unfortunately i haven't more pictures for them ( was a few years ago) ; except this one . (I got it from hunka tibor)

.
Niddle-Scan.jpg
.

This challenge consist of a few parameters:

- The light : using shorter wave will give us better results. Seems blue is good.

- playing with concave and convax lenses to have a good calibration using 15 mm and lower size of pannels.

- the quality of live view and its dimension.

And more.

Hope to see good results here.

Narmella.
mading
Posts: 307
Joined: 31 Jan 2017, 13:09

Re: A challenge : macro scanning

Post by mading »

I scanned a small swiss coin (19.12 mm diameter).
With a standard LG PF50, a couple of 12 mm lenses, my Daheng cameras and RangeVision scanner.
24 scans, alignment automatic (apart from getting the two half together).

coin scanned flat over the turntable

This can be improved significantly moving the lens of the projector to focus at shorter distance.
that's for another test. :-)
IMG_20210330_125046.jpg
Immagine 2021-03-30 125906.jpg
Immagine 2021-03-30 124444.jpg
Immagine 2021-03-30 125931.jpg
LG PF50, LG PF1500, RangeVision DIY: 2x DahengMer630, 2X12 and 2X16 mm 5Mp ZK lenses, RV turntable
User avatar
Micr0
Posts: 586
Joined: 15 Nov 2016, 15:20
Location: New York City

Re: A challenge : macro scanning

Post by Micr0 »

NARMELLA wrote: 29 Mar 2021, 06:20 I have started by using david laser scanner to go deep.

However it was not enough.

.
LS_SC_01.png
MACRO03.png
MACRO02.png
Your "Let's Scan" app was very promising. I would have liked to see that developed and refined to a commercial level product. Perhaps a little more automated. I remember that the results I got with it, even the reduced version, were excellent.
µ
NARMELLA

Re: A challenge : macro scanning

Post by NARMELLA »

mading wrote: 30 Mar 2021, 11:01 I scanned a small swiss coin (19.12 mm diameter).
With a standard LG PF50, a couple of 12 mm lenses, my Daheng cameras and RangeVision scanner.
24 scans, alignment automatic (apart from getting the two half together).

coin scanned flat over the turntable

This can be improved significantly moving the lens of the projector to focus at shorter distance.
that's for another test. :-)

IMG_20210330_125046.jpg

Immagine 2021-03-30 125906.jpg

Immagine 2021-03-30 124444.jpg

Immagine 2021-03-30 125931.jpg
Nice one !

Hope to try smaller one .
NARMELLA

Re: A challenge : macro scanning

Post by NARMELLA »

Micr0 wrote: 30 Mar 2021, 14:55
Your "Let's Scan" app was very promising. I would have liked to see that developed and refined to a commercial level product. Perhaps a little more automated. I remember that the results I got with it, even the reduced version, were excellent.
Hello micr0.

Your sentences have been ; are ; will be promising.

Thank you

Call you soon.
mading
Posts: 307
Joined: 31 Jan 2017, 13:09

Re: A challenge : macro scanning

Post by mading »

I once tried installing let's scan, without investing enough time to get a result. The idea was great, but instead I invested time and € in a stereo setup for HP3D.
In my opinion there are now more robust and productive sw for DIY scanning than david-HP3D. And cheaper.

Looking forward to see the recent updates of your software!
LG PF50, LG PF1500, RangeVision DIY: 2x DahengMer630, 2X12 and 2X16 mm 5Mp ZK lenses, RV turntable
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