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Archive for October, 2011

VAT 100% silicone dam wall

October 6th, 2011 7 comments

Time to setup another test. I am trying to create a dam wall for the silicone coated VAT, that I have not yet built. I will have details on the experiment with glass and different foil in an attempt to create a thin coating of silicone on the VAT glass.

I have found an aluminum I-beam with unequal sides. One side is 7mm high and the other is 5mm. Width is 17mm. I filled the channel with silicone and let it dry for 3-4 days outside (still relatively warm here – 24C during the day). It solidified and used an exacto knife to separate the sides and lift the silicone.

 

I used a business card to smooth the silicone while still wet. Put it in the pipe from the lens assembly spacer post to keep it from dust.

 

Categories: VAT-Frame Tags: , ,

Lens Assembly Spacer Again!

October 6th, 2011 1 comment

After some extensive search, I found some M2.5 standoffs. I bought 15mm, 20mm and 25mm. I used the 15mm long ones.

I used the original bolts on top to hold the lens assembly to housing securely. I left the ring on the lens and slid it down so it is blocking any light passing though the gap.

 

The results speak for themselves:

Perfectly square and stable image. It is not moving or shaking every time I bump the table.

That last one is of the focused projector.