still a bit of work to go.. but functional eneough for now

That’s awesome.  Way to get the rig runnin!

Looks really great. How long did it take you to build it?

Congratulations Zin, looking good.

it took about a month… most of which was waiting for a supply of film to come in… actual construction and setup other than waiting was a weekend project… oh and i’ve got a new suggestion for a compliant surface ( or one i haven’t seen yet )… cheapest i’ve found as well… Tissue paper.. normal… off the dollar rack tissue paper… normally found near the gift wrapping items are....

wow… thats really good if i had a screen i would try it out… let me know how your screen turns out! Are you just putting tissue paper on the surface, how does the texture feal? Do u think that it would be possible to use Tinkerman silicones vellum design? Maybe putting a few more sheets and putting a textured silicone on them. Nice work...It looks really good

what i’ve done is put a single issue of tissue paper between two pieces of acrylic.. ( had two of em.. might as well use em… ) and i have the one facing me slightly offset so i could attach my ir channel.. the wonder of my setup is i’m only using 6 ir led’s… and still getting VERY bright blobs…

projector & cam
(ir blob)
-----------------------------------
acrylic
-----------------------------------
tissue paper
[[[[---------------------------------
ir channel and acrylic
[[[[---------------------------------
(finger press)

( sorry for the SWEET graphics… but i just woke up… )

lol nice work

that is very good graphic lol … Its alright i get the picture. So you are also using the tissue paper as a compliant surface along as a defuser . I did not see a layer for the tissue paper(compliant surface in your nice diagram. I get the idea though nice work looks really great. - if you have the acrylic you might as well use it yeah lol…

Zin - 31 July 2008 11:13 AM

what i’ve done is put a single issue of tissue paper between two pieces of acrylic.. ( had two of em.. might as well use em… ) and i have the one facing me slightly offset so i could attach my ir channel.. the wonder of my setup is i’m only using 6 ir led’s… and still getting VERY bright blobs…

projector & cam
(ir blob)
-----------------------------------
acrylic
-----------------------------------
tissue paper
[[[[---------------------------------
ir channel and acrylic
[[[[---------------------------------
(finger press)

( sorry for the SWEET graphics… but i just woke up… )

Great setup Zin!

I’m not sure I understand your graphic heh. Are you putting the tissue paper below the acrylic and in between the 2 layers of acrylic? If so and you’re touching acrylic directly, than you’re actually not using a compliant surface at all. Instead, it would mean you’re using the tissue paper as a projection/diffuser surface. I’ve tried tissue paper a long time ago and it never did anything for me as any kind of compliant surface. =\

Sorry i meant to ask if you are using tissue paper on top of the acrylic surface. Maybe i should have asked that before i jumped to any conclusions. I just assumed that you had left out the tissue paper on your detailed diagram lol.  If i had a table i may be able to tell exactly if some designs work or not.  I guess it is not to late to ask if you are useing the tissue paper on top of the surface? Kind of like a silicone surface. because if the tissue paper is between the acrylic it is a diffuser. Acting as a projector surface. Basically a compliant surface is just what cerupcat had said.

“If so and you’re touching acrylic directly, than you’re actually not using a compliant surface at all. Instead, it would mean you’re using the tissue paper as a projection/diffuser surface.”

Sorry for the wrong term… I correct myself… Its not a compliant surface… But as cerup said… A diffuser.... And in my experiments a few ... 2 to 4 layers of tissue paper between the acrylic sheets work as a wonderful projection surface while allowing for clear, very bright blobs… But i do have a few ideas i will be posting up in a new post reguarding a non ir setup using a bit of different physics…

Nice work zin!

Keep up the good work Zin, looks great

Again it Looks really great!! everytime that i go on to this post i cant help but watch your video over and over again. Looking forward to more. I will keep an eye out! :D

So, you’re generating smooth blobs by touching acrylic alone without a complaint surface?  How hard are you pressing?