Here's how you can get to make some .obj files out of real life objects.
What you need:
-An 8$ Laser Edge form any Hardware Store;
-The David scanner program, from
David 3D Scanner
-.Net Framework add-on from Microsoft, if you don't have it installed already;
-Some printed patterns
-And stuff you'll find around you house, like Styrofoam boards, and UHU Por to glue it, for
If you don't like to change the Edge's batteries all the time, better add a Tranformer with 3V
output, a common Mono plug, and some soldering work, too.
For an easy scan, and good results, you better have an Airbrush around, to cover the
objects with a wash-away layer of white paint, common Gouache will do fine.
Baby powder is said to give good results on stuff you don't want to paint.
This other Instructable shows you how to make a neat laserline, so have a look at it, too:
Step 1: Download
And, if you're not into recieving Window's updates by
the Net, download the .Net Framework add-on from
Step 2: Frame Thang
I went and done a hap-hazzard contraption from a couple of straight
Styrofoam boards I had, and glued a cut Kodak envelope onto it, AFTER I cut and glued the A4 page into it.
See, you can make an half-decent right-angled frame, even if you're a lazy slob!
Step 3: Cardboard Gluin' Fool
Of course, for an A3 thing, you need to do things a little mode decent!
Maybe Acrilic glass, so there's no excuse for crappy scans!
Step 4: Dismantling Stuff! Yeah!
Allways bright laser light!
Step 5: Re-assembled
After the shot, I added a lateral slot for the thing to stand upright.
Step 6: A Lenzzz!
Used the re-usable adherent stuff that comes with the Edge, to fix the eyedrop into the Edge, too.
Here you can see it, cheaper than looking for a
glass rod, I suppose!
Step 7: Scan It!
then here's the obj file it gave:
Step 8: Obelix, Where Are You?
Step 9: Buzz Lightyear!
Step 10: Plaster! or Is It?
Step 11: Well....Humm...
but no cigar!
Looks like I've wrapped the thing on Aluminum foil, or the impact marks of Buzz smashing into a metal wall!
Either the webcam's junk, or I'm doing soemething wrong, but as far as showing the program works, it does, so next thing I'll make
the A3 version, and see if that changes anything.
Remember, my webcam's a crappy old Mustek 300 A, so if you've got something better, and a PC to handle it, go for it!