Dear DAVID Community,

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SL help

Anything that doesn't fit the other topics should go here.

SL help

Postby gravyblue » Fri Jul 08, 2011 2:23 pm

Hi Guys!
I want to make a planeless rig using SL.
I have xga projector, for reasonable sized things, but need to scan small things (2 -4 cm) with enough detail to be able to reproduce them on the cnc machine.
My big projector will only focus down to just under a meter, so I'm looking at mini/micro projectors, as they focus down to 5 or 10 cm.
Now the big question is, would a 640 x 480 be ok as they're half the price of the 800 x 600. I'm using the Logitc quickcam.
My thinking is low res at close range may be the same as high res at greater distance?
Also I've been looking at the Philips pix 1030 that is usb only. Would this work with DAVID 3? Because its quite cheap and 800 x 600
Thanks
Doug
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Re: SL help

Postby Godehardt » Fri Jul 08, 2011 4:52 pm

I am using a so-called pocket projector from 3M, the MP110, which has a native resolution of 640 x 480 pixels, but supports 1024 x 768 pixels. Additionally, there are some lenses added to put the projector closer to the object (which sometimes is only 5mm high). Another good projector is the EnWo G2, which also should be used with additional lenses. The first projector has just 10 lumen, the second one has 70 lumen, however, this is not the problem since the projector is very close to the object.
Erhard
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Re: SL help

Postby WalterMo » Fri Jul 08, 2011 5:19 pm

Another possibility to focus more down is by moving the lens a few mm more out of the projector.
In so doing you could still use your XGA device.
And if DAVID will support an USB projector, who knows?

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Re: SL help

Postby funtasma » Fri Jul 08, 2011 8:50 pm

See the posts under the topic "About projectors". I wrote about my experiences with a cheap Aiptek projektor.

http://www.david-laserscanner.com/forum/viewtopic.php?f=16&t=3110#p18235

-Benjamin-
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Re: SL help

Postby gravyblue » Sat Jul 09, 2011 12:14 am

Thanks guys.
Iv'e just impulse purchased the philips pico pix 1230, which is 800 x 600 and comes with vga adaptor lead for just under 200 quid, so I'll let you all know how it works!
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Re: SL help

Postby eightman » Fri Sep 19, 2014 8:32 am

gravyblue wrote:Thanks guys.
Iv'e just impulse purchased the philips pico pix 1230, which is 800 x 600 and comes with vga adaptor lead for just under 200 quid, so I'll let you all know how it works!

as this projector is 100€ today, i really wonder if it could be used with DAvidLAserSCaner
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Re: SL help

Postby gravyblue » Mon Sep 22, 2014 12:43 pm

yep
Image

about 8 cmm across
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