I may not make a whole projector log as I don’t think I will have all that much innovative design in the box. I AM, however, pretty proud of my Pro reflector mount. I used basic supplies (mostly from the Lowes Decking hardware section) and a few shop tools. Here goes:
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The large plate (above) is sold as a structural tie to join deck joists together. It is pretty thick, nice and sturdy and cost a whopping 3 bucks. The rest, a handful of 1/4-20 hex bolts and matching washers & nuts. Call it another 3 bucks.
Full Version: Pro Reflector Mount
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I cute the plate with a hole saw and a fair amount of patience. That is not really the plate in the pic. i forgot to take a pic while it was on the drill. Cost = free if you have the hole saw. (~ $25 if you dont
)
I cute the plate with a hole saw and a fair amount of patience. That is not really the plate in the pic. i forgot to take a pic while it was on the drill. Cost = free if you have the hole saw. (~ $25 if you dont
)
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Bolts and washers in, but the "fit check" shows that the bolts tilt too much due to the thickness of the reflector front face. Am worried that the lense might pop out.....
Bolts and washers in, but the "fit check" shows that the bolts tilt too much due to the thickness of the reflector front face. Am worried that the lense might pop out.....
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I need a stand-off to support the flat washer without interfering with the reflector....
Enter gold old fashioned lamp rod (the kind you use to make our own lamps, the stuff is in every home store for like a dollar a foot).
I need a stand-off to support the flat washer without interfering with the reflector....
Enter gold old fashioned lamp rod (the kind you use to make our own lamps, the stuff is in every home store for like a dollar a foot).
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The reflector is set in place now. The lamp rod is not de-burred, so kind of ugly at this point. I used a 3 inch hole saw, notice it is just about perfect. Any bigger and the reflector might fall through.
The reflector is set in place now. The lamp rod is not de-burred, so kind of ugly at this point. I used a 3 inch hole saw, notice it is just about perfect. Any bigger and the reflector might fall through.
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Side view shot. The hex nuts are cranked all the way down so the springs in the back are completely compressed. I will back these off to give room for heat expansion of the plate.
Side view shot. The hex nuts are cranked all the way down so the springs in the back are completely compressed. I will back these off to give room for heat expansion of the plate.
That’s it for now. I have some metal hurricane straps, 18 inches long (also from the decking section) that I will bend at 90 degrees to use as mounting legs for this as soon as I determine box height/width. I will most likely mount the whole deal on a MDF plate and make a sled out of it.
By the way, there are bubbles in my Pro reflector. Should I consider this a dangerous defect (Brain please advise)? I’d hate to invest all this time only to have the darn thing explode the first time it see heat.
By the way, there are bubbles in my Pro reflector. Should I consider this a dangerous defect (Brain please advise)? I’d hate to invest all this time only to have the darn thing explode the first time it see heat.
excellent! Nice and simple. I like it.
FastCote: Apologies, I thought this was an open invitation to post other ideas. I don't want to stain your thread so I removed it.
sim
sim
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Well, since the reflector was sitting on this, I couldn’t resist a gratuitous shot of my JoeChevey CNC machine in progress… This project is totally fun and completely absorbing. I’m not sure which project I am enjoying more. Too bad the Cnc is not done as it would have made building the projector enclosure easier.
Well, since the reflector was sitting on this, I couldn’t resist a gratuitous shot of my JoeChevey CNC machine in progress… This project is totally fun and completely absorbing. I’m not sure which project I am enjoying more. Too bad the Cnc is not done as it would have made building the projector enclosure easier.
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What size threads are theses exactly? i had to scavenge my junk box to find machine screws to fit.
What size threads are theses exactly? i had to scavenge my junk box to find machine screws to fit.
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Light and reflector "dry fit" in back of Proj enclosure. Looks good. Pic taken in daylight conditions with camera settings cranked all the way down. It was REALLY bright.
Light and reflector "dry fit" in back of Proj enclosure. Looks good. Pic taken in daylight conditions with camera settings cranked all the way down. It was REALLY bright.
thats a classic table saw
QUOTE (mikelish @ Jan 28 2006, 09:37 PM) 
thats a classic table saw
and a garage you could park a car in. Man, I gotta clean mine out. I know I gotta saw in there somewhere.
Well, its SUPPOSED to be a TWO car garage, but its more like a one car, plus three kids bikes plus two wagons plus scooters, plus about 100 different partially broken toys. (thee boys, less hair, even less patientce, no sanity)
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Tucked behind a nice piece of XL10.
Ran it for approx 20 min and temp in light chamber only reached around 104 with a temporary lid and one cheap (REAL CHEAP, as in $0.99) 80mm fan.
Tucked behind a nice piece of XL10.
Ran it for approx 20 min and temp in light chamber only reached around 104 with a temporary lid and one cheap (REAL CHEAP, as in $0.99) 80mm fan.
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Ready to work my way forward. First fresnel (nice frame job if i do say so )
Ready to work my way forward. First fresnel (nice frame job if i do say so )
Nice work on the 45 degree corners
did them with the "classic" table saw
QUOTE (FastCote @ Jan 28 2006, 03:21 PM)
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Light and reflector "dry fit" in back of Proj enclosure. Looks good. Pic taken in daylight conditions with camera settings cranked all the way down. It was REALLY bright.
Can your eyes see the arc THROUGH the pro reflector or is it just that the camera imaging chip is sensitive to IR? Just curious.
Light and reflector "dry fit" in back of Proj enclosure. Looks good. Pic taken in daylight conditions with camera settings cranked all the way down. It was REALLY bright.
To be honest, i spent most of the time trying NOT to look at the arc. you sure get a fact full of light trying to make lil adjustments while the lamp is lit. ill take a look next time i light it off.
You can see the lamp through the reflector.
No dichroic coating will be 100% opaque. So if you hold the pro reflector up to a flourescent light, you will be able to see through it.
No dichroic coating will be 100% opaque. So if you hold the pro reflector up to a flourescent light, you will be able to see through it.
QUOTE (SupraGuy @ Jan 31 2006, 12:55 PM)
No dichroic coating will be 100% opaque. So if you hold the pro reflector up to a flourescent light, you will be able to see through it.
Yeah 
I thought of that a few hours AFTER I asked the question. Bound to be some visible light sneakin' through. My bad.
nice design
To be continued
QUOTE (LiDong @ Feb 5 2006, 09:47 AM)
To be continued
???
it looks like your reflector mount wont allow for expanion ,this may or may not be nessesary.
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