This is my first projector build and i very excited at the prospect of having my own projector but a bit nervous about screwing up.
Tools:
B&Q Router -B&Q
3.2mm Straight Cut Router Bit -B&Q
Drill with 3mm Bit
Craft knife
Parts List:
400w Coralvue Ballast -Reefstock
E40 Lamp Holder -eBay
400w MH Bulb -
330mm Collimator Fresnel Lens -Purchased from LL Member
320mm Triplet -Purchased from LL Member
Pro Reflector -Purchased from LL Member
Shower Drain -Purchased from LL Member
15.4" Widescreen Lcd -Ebuyer
11mm Pinewood
3mm Hardboard -B&Q
15mm Dowell
Panels From mATX PC Case -The Attic
I have been browsing though the forums for quite some time reading though plogs and trying to absorb as much knowledge as possible, and have eventually collected the parts i need.
After this i spent quite some time planning out the appearance of my projector using google sketchup.
You can find my plans here, i will be putting them all online when i am finished.
After reading for some time on it, i decided to do an anti glare strip, i carefully laid out some kitchen role over my lcd and poured water until the kitchen roll was completely saturated.
After 2-3 hours i began to pull up the anti glare coating, it came off in 3 main pieces, but where i had not quite covered the LCD to the edges of the anti glare, it came up in a few smaller pieces around the edges. EDIT (just realised this is not the lcd i used in my projector, it was an old dead lcd panel i used to make sure i was capable of stripping the anti glare, which it turns out is a fairly simple, if nerve racking process)
I then set about making the outer casing for the projector, i first of all using sketchup viewer to print the outline of my model to scale. After taping the 6 pieces of A4 paper together, i used this printout to cut out a more sturdy template from some 3mm hardboard using a craft knife and a bit of patience.
I clamped this cutout to my plywood and used my router to make an accurate cut out of the side panels. I used the template flipped over to complete the top curve. This is the first time i have used a router and i was amazed at how easy it made things like this
I used some more plywood to make the lcd sled, you can also see our chicken coup in this pic, they didnt think much of the noise, whenever i turned off the router they would be angrily clucking.
This is just a picture of my first finished side panel, and a rough idea of where the lcd led will go, i was very pleased with how this came out.
Next on the agenda was cutting the frensels and lexan to size, i first of all cleared my worktop of all the dust, then laid cling film all over it to give the frensels a clean surface to lie on when they were being cut.
I simply measured out the length, and used my craft knife again.
After this i clamped my cut out side panels together and began the sanding to even out any bumps from the routing, and to make sure they are exactly the same dimensions.
The case looks a bit shark like here, ooo
There is a bit of a gap in my picture taking here, in this interlude i cut out the front and back panels of the case, drilled holes though the side panels and into the front and rear panels to allow them to be screwed toghther, i decided after doing this i didnt really like the look of the screws i used, as they go to the very edge of the case, i may try to find some ones with a smaller head, most likely i will just learn to live with it.
When the case has been screwed toghther i took a moment to feel a bit proud, i am still a long way off finishing but it is definatly taking shape, you can also see some of the sketching i was doing on the inside of the enclosure to see the light path
When my moment was over i broke out the belt sander and got to work on those protruding square corners on the front and rear panel, this took an age, and i went through a few strips of sand paper, and created roughly a metric ton of sawdust (most of which seemed to end up in my shoes).
When the sanding was done, i scored off some hardboard and (with much difficulty) slotted it into the routered groves on my enclosure. The picture shows where i have currently got to.
