SLS on a budget - camera and lens choice

Discuss about cameras, projectors, calibration panels, turntables etc.
Tzk
Posts: 23
Joined: 17 Mar 2020, 13:28

Re: SLS on a budget - camera and lens choice

Post by Tzk »

I thought i'd keep you guys updated...

My parts from china finally arrived. I went with OBNRacers recommendation and bought the 12mm ZLKC lens which fits nicely with the YW500U3 camera. The FOV is also perfect.

The setup works so far, but i now need calibration plates. I printed them on cardboard as a first test, but obviously the calibration fails in about 9 of 10 tries. I think i saw a thread about custom ones on this forum :) Will investigate... Iirc some of you used a panel and simply glued cardboard to it. I guess i'll try that first.

And here's how it looks currently. I got a ballhead underneath the camera and can slide it back and forward on its bracket. I can also move the projector sideways to adjust the angle between camera and projector. Works pretty well for the first try.

IMG_20200615_140858.jpg
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Micr0
Posts: 471
Joined: 15 Nov 2016, 15:20
Location: New York City

Re: SLS on a budget - camera and lens choice

Post by Micr0 »

Tzk wrote: 15 Jun 2020, 12:18 I thought i'd keep you guys updated...

My parts from china finally arrived. I went with OBNRacers recommendation and bought the 12mm ZLKC lens which fits nicely with the YW500U3 camera. The FOV is also perfect.

The setup works so far, but i now need calibration plates. I printed them on cardboard as a first test, but obviously the calibration fails in about 9 of 10 tries. I think i saw a thread about custom ones on this forum :) Will investigate... Iirc some of you used a panel and simply glued cardboard to it. I guess i'll try that first.

And here's how it looks currently. I got a ballhead underneath the camera and can slide it back and forward on its bracket. I can also move the projector sideways to adjust the angle between camera and projector. Works pretty well for the first try.


IMG_20200615_140858.jpg
Keep us posted.
µ
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OBNRacerMan
Posts: 235
Joined: 12 Aug 2019, 09:46
Location: Obninsk, Russia

Re: SLS on a budget - camera and lens choice

Post by OBNRacerMan »

Congratulations on completing the pre-build! We are waiting for the show of scans.
Soft: RangeVision DIY, Calibration panel/Rotary tables - RangeVision, Prj: Byintek UFO R9, Cam: Daheng Mercury MER-630-60U3M-L (USB3.0, monochrome) x2, Obj: ZLKC HM1628MP10 (F2.8, 10Mp, 16mm) x2 & Azure 3518M3M (F1.8, 3Mp, 35mm).
Tzk
Posts: 23
Joined: 17 Mar 2020, 13:28

Re: SLS on a budget - camera and lens choice

Post by Tzk »

Alright...

I made myself some panels using din A4 cardboard with printed markers and some wooden panels. Calibration worked right away. Then i went on to make a first testscan... I sacrificed my trusty rubberduck for the cause and this is the result. 30 Scans (360° loop) were made on a single height with the stock "quality" setting. The 2nd image is the fusion (resolution 1500, sharpness 2) of all scans.

I'm pretty happy given this is literally the first scan ever made with this setup.
rubberduck1.JPG
rubberduck2.JPG
Last edited by Tzk on 16 Jun 2020, 11:54, edited 1 time in total.
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OBNRacerMan
Posts: 235
Joined: 12 Aug 2019, 09:46
Location: Obninsk, Russia

Re: SLS on a budget - camera and lens choice

Post by OBNRacerMan »

Well, as I thought - your budget system showed quite decent scan quality. ;)
Soft: RangeVision DIY, Calibration panel/Rotary tables - RangeVision, Prj: Byintek UFO R9, Cam: Daheng Mercury MER-630-60U3M-L (USB3.0, monochrome) x2, Obj: ZLKC HM1628MP10 (F2.8, 10Mp, 16mm) x2 & Azure 3518M3M (F1.8, 3Mp, 35mm).
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Micr0
Posts: 471
Joined: 15 Nov 2016, 15:20
Location: New York City

Re: SLS on a budget - camera and lens choice

Post by Micr0 »

Tzk wrote: 16 Jun 2020, 11:40 Alright...

I made myself some panels using din A4 cardboard with printed markers and some wooden panels. Calibration worked right away. Then i went on to make a first testscan... I sacrificed my trusty rubberduck for the cause and this is the result. 30 Scans (360° loop) were made on a single height with the stock "quality" setting. The 2nd image is the fusion (resolution 1500, sharpness 2) of all scans.

I'm pretty happy given this is literally the first scan ever made with this setup.

rubberduck1.JPG

rubberduck2.JPG
Right out of the gate these are excellent scans.
µ
mading
Posts: 166
Joined: 31 Jan 2017, 13:09

Re: SLS on a budget - camera and lens choice

Post by mading »

Welcome on board!!
HP 3D scan, Acer K132, LG PF50, 2x DMK23UX236, 2xComputar M1214, David Calibration panels, Melamine panels, DIY rotary table
kth307000
Posts: 23
Joined: 17 Jul 2020, 15:35

Re: SLS on a budget - camera and lens choice

Post by kth307000 »

Tzk wrote: 16 Jun 2020, 11:40 Alright...

I made myself some panels using din A4 cardboard with printed markers and some wooden panels. Calibration worked right away. Then i went on to make a first testscan... I sacrificed my trusty rubberduck for the cause and this is the result. 30 Scans (360° loop) were made on a single height with the stock "quality" setting. The 2nd image is the fusion (resolution 1500, sharpness 2) of all scans.

I'm pretty happy given this is literally the first scan ever made with this setup.

rubberduck1.JPG

rubberduck2.JPG
Excellent result.
Did you use one camera?
Tzk
Posts: 23
Joined: 17 Mar 2020, 13:28

Re: SLS on a budget - camera and lens choice

Post by Tzk »

Yes, only one camera was used. I haven't made further tests yet, as i'm a bit short on time right now. But i'll update this topic when i start scanning again. :) I'll build bigger calibration panels first.
kth307000
Posts: 23
Joined: 17 Jul 2020, 15:35

Re: SLS on a budget - camera and lens choice

Post by kth307000 »

I bought a camera and lens like yours and arrived today and tested with anticipation, but it is out of focus.

Please help me how to set it up.
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