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Post by Decibel on Jun 3, 2016 7:59:41 GMT -5
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Post by Decibel on Jun 3, 2016 8:06:09 GMT -5
Unfortunately the thickness 38mm is compatible only for rear middle fan
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Post by Casethecorvetteman on Jun 3, 2016 12:27:23 GMT -5
I wouldnt replace them with cheap PC fans if i was you, but thats just me. I can barely hear my Cine 9 running.
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Post by hulio on Jun 3, 2016 15:05:34 GMT -5
Myself, i find a Cine 9 silent enough. The main problem is finding less noisy fans while replacing at least the same amount of air. Barco did a pretty good job choosing those NMB's. The only beter option I heard of, are some Papst fans. But the noise gain is not that huge. Or, of course, you can go ballistic and choose for water cooling instead of fans. Like this guy did: www.curtpalme.com/forum/viewtopic.php?t=39455 |
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Post by Casethecorvetteman on Jun 3, 2016 18:23:01 GMT -5
Why oh why....
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Post by hulio on Jun 4, 2016 1:48:51 GMT -5
Indeed, my opinion too.... |
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Post by Casethecorvetteman on Jun 4, 2016 6:53:07 GMT -5
Its not the best idea ive ever seen, the coolant used in PCs is generally non conductive to ELV, but i doubt itd hold that dilectric at a couple hundred volts.
And you still need fans on the radiators.
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Post by tschaeikaei on Jun 5, 2016 23:59:53 GMT -5
It is not necessary to cool a CRT projector to absolute minimum temperatures.
It is necesary to shorten warm up time (to avoid drift) and use moderate rpms.
Makes my projector inaudible.
There is a new version of the fan controller. Engeneering by a close friend and myself.
On is already build into one of my Marquees and running perfectly fine.
The other boards are currently being assembled.
Specs:
- 6 channels, all independently controlled, monitored and tweekable
- settings and temperature monitoring are done via a coustom android app
- temperature controlled, means after 1 to 2 minutes after power up, the fan will spin at the lowest possible rpm
and make sure your device settles to exactly the temperature you want it to be.
That makes warm up time of the projector as short as 2 minutes and the picture will be rock stable after that time.
No convergence drift issues whatsoever.
- Compatible with any DC fan you could imagine up to 500mA /100V DC
meaning you could connect 6 fans and temperature sensors, each of them is set to a temperature of your choice
- everything is controlled by a small board (80*100mm) which can be fit into any projector (or anything else you want to control)
- proportional + integral controller
- alarms for overheating and error alarm (in case a sensor is disconnected/defective), both optical and audible
So if you want to think about warm up time: this is better than water cooling. It takes a very long time for the water to warm up
and during that time, the projector will drift. Avoid that by using a temperature controlled fully configurable cooling system.
I was told the 909 has 7 fans, but don't worry, you can connect 2 fans to one channel. Those fans will spin at the same rpm and set to the
same temperature, but why should this not work.
If interested, contact me, they're cheaper than you'd think.
Regards, Julian
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Post by Casethecorvetteman on Jun 6, 2016 5:43:59 GMT -5
Wont work in a 909 or Cine 9, but there is only 6 fans im aware of.
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Post by tschaeikaei on Jun 12, 2016 8:58:38 GMT -5
Why do you think it would not work in a Cine9, Case?
That controller is completely independent from the projector.
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Post by Casethecorvetteman on Jun 12, 2016 10:33:13 GMT -5
That is the reason it wont work, the controller of the projector will shut the set down if the fans dont spin at speeds the controller expects to see.
The Cine 9 is so quiet you can hardly hear it anyway.
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Post by gjaky on Jun 14, 2016 13:54:47 GMT -5
That is the reason it wont work, the controller of the projector will shut the set down if the fans dont spin at speeds the controller expects to see. The Cine 9 is so quiet you can hardly hear it anyway. I think Julian could even serve your request, in fact I also have an idea how to make the controller not just shut down the cine9, but to cause power outage in your entire apartment if the cine9 is overheating...  Now, THAT is the only thing you want during a hot circuit in the Mario Kart! LOL |
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Post by tschaeikaei on Jun 14, 2016 14:18:18 GMT -5
Sure, shutting the projector down would only require using another pin on the micro controller connected to a relays' coil. 2 lines of additional software and that's it. No problem. But since we wanted the controller to be univeral and we didn't want the user/ customer to solder on mains wires, we didn't do it. But it is possible, yes. There is even a port on the controller board, where an optional display could be connected to read out the temperatures. But we didn't implement it in the software as we think the vast majority of people have an android phone or tablet and would use it to read out (and change desired values). That's wireless and you even don't have to get up from the couch to check temps when watching a movie. We even thought about adding a chip to make an overlay display (OSD) on the projector that tells you the readings. Settable via projector remote.. everything is possible. But this would require tons of research for remote timings, projector signal paths and so on. In fact, it would be less universal. Maybe, one or two of the named features could be added in future versions... but... i don't see a real need for it as i am perfectly happy with the system right now. New features mean more possible failures and that surely means more work. But since Case is crying in the other thread, i'll tell you what this system is not. - Rocket since - won't auto- adjust geometry - will not turn brown phosphor to bright white - will not make the projector silent if you use 1$ chinese fans with sand bearings - it will not make your wife come back if you are an asshole (or she is  ) Regards, Julian |
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Post by Casethecorvetteman on Jun 14, 2016 23:21:12 GMT -5
Crying??? Pull your head in mate... Im telling it how it is.
€85 for no significant gain is pointless on an allready dead quiet Barco. There are far cheaper options, and your controller does nothing new that the set does not do allready from the factory.
Great idea on a noisy projector, but its just not worth it for a Barco Cine 9. People can go for it if they want, but id want alot of gain for that much money.
Again, ill say it for you so you see it over and over, i dont care about other projectors and my comments are not aimed at those machines. Go for it if you have a loud machine, but this device is not going to stop lens drift during warmup, and it wont make the set quieter than a near silent room.
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Post by tschaeikaei on Jun 15, 2016 5:48:15 GMT -5
If the 909 was dead quiet, why do people complain about it's noise? Myth busted.
Did you ever think about if there could be two versions?
Oh and i always assume you have a 909 yourself, is that true?
Explain to me how the 909 internal fan controller works, if there is parameters the user can adjust (like rpm, temperature).
You know there is a reason why we made that app. We could have programmed the should-be-temps into the micro controller
and spare the time to devellop the app. But what happens when seasons change?
Maybe you have 15°C room temperature in winter and 32°C in summer. The values must be changable, as the warm up time
(until the is- and chould-be- temps are the same) depends on these delta T and the fan power (=noise) also depends on it.
Is that possible with the Cine9's controller?
Let's say you want the temps at 28°C (in winter) that's not achievable in summer, because the room is warmer then.
Think about this! And there's many more arguments. But first explain to me how the 909 controller works.
If it is good enough and the fans and airflow system of the 909 are good enough... why are people complaining about noise? Doesn't make sense.
And much money?? Half of it is simply parts cost, so we gain like 40 bucks for 2 years of development,
coustomer service, assembly of the thing and individual testing. It is not only the board,
it is also two softwares, one of them about 1200 lines of code. Devide that 40 bucks by two people.
Are you kidding me??
That's as cheap as only a complete fool would sell it. Think before you type.
And wasn't it you who said for years that all other projectors but NECs were shit?
That's really not a person i want to talk to. I'm going to ask MT to delete all the flaming in the other thread.
You can then go on flaming here until you run out of acceptance and leave this forum as well... by free will or not.
I don't think this forum will accept destructive postings like Curts forum did for a long time.
And now, there is hardly anything else than fighting and so on.
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