mr.wilson
.Registered Member
What do you think of the Maglev fans used in the Pacific Sun fixtures?
http://www.sunonusa.com/index2.asp?f=technology&p=maglev
These whale inspired fans are interesting...
http://www.whalepower.com/drupal/?q=node/1
Minimalistic multichip DIY LED build
- Thread starter maglofster
- Start date
What do you think of the Maglev fans used in the Pacific Sun fixtures?
http://www.sunonusa.com/index2.asp?f=technology&p=maglev
These whale inspired fans are interesting...
http://www.whalepower.com/drupal/?q=node/1
Mr Wilson: Those maglev fans look badass, but apparently they have some sort of issue.. I googled them to see what the prices were like and one of the first links that pops up is a failure vid, did a little more digging and apparently they used these in some PVR and they died by the thousands or something. Sunon doesn't seem to carry the reputation they used to.. I know Intel doesn't seem to use them anymore, and they used to be their primary fan vendor.
The Whale Tech looks interesting, I've seen this sort of thing before, at a guess I'd say that technology probably has a very definite and sharp cutoff for airspeed - there was something along those lines a while back that was touted for jet engines and it turned out that it only worked at lowish speeds. The website mentions the tech is used in some high volume low speed products. Not to say it's not viable for say computer type fans but there's lots of tech there these days as well. IMO this sort of tech should be very difficult to patent, but of course that's not the case.
Lasse: I get no color separation with the lens I'm using, the 100 degree x 44mm job from satis. The ripples look a little like there might be some separation but it's a trick of the eye, brighter light looks more white - I have confirmed this with a camera.
The Whale Tech looks interesting, I've seen this sort of thing before, at a guess I'd say that technology probably has a very definite and sharp cutoff for airspeed - there was something along those lines a while back that was touted for jet engines and it turned out that it only worked at lowish speeds. The website mentions the tech is used in some high volume low speed products. Not to say it's not viable for say computer type fans but there's lots of tech there these days as well. IMO this sort of tech should be very difficult to patent, but of course that's not the case.
Lasse: I get no color separation with the lens I'm using, the 100 degree x 44mm job from satis. The ripples look a little like there might be some separation but it's a trick of the eye, brighter light looks more white - I have confirmed this with a camera.
Last edited:
Lassef
Member
Thank you. I´m currently use 60 degrees and has as you maybe have seen very good PAR readings. if I have to change the ones I have - I still want 60 degree. Do you think it is any differences between the different degree´s according separation or could it be my lenses (if not my eyes trick me) ?
Sincerely Lasse
mr.wilson
.Registered Member
I don't know for sure, but I suspect that the wider optics mix the colours better due to their flat profile. The 90˚ optics tend to polarize the light from side to side. This is less of an issue if the chip location is balanced out.
I would use a 120˚ lens for a small tank like yours. I find 90˚ lenses are good for tanks that are 30" deep. The 60˚ lens is good for a 36" (1m) or deeper tank... unless what you are calling 60˚ is what I call 120˚ (light spreads 60˚ left and 60˚ right)??? My 90˚ lenses are 1.5" thick, while the 120 lenses are less than 1" thick. How thick are your 60˚ lenses?
BeanAnimal
Premium Member
I am a bit puzzled here. I assume these driver boards will be for sale at some point and not free. Several pages back you became very agitated when it was proposed that many of your posts were aimed at promotion of products that you were involved with. In fact you demanded "proof" of the "conspiracy" of "fragmented minds".
So I ask, if it is just "a guy in Sweden", then why does your name appear in the user documentation as an accredited contributor to the "AquasparX" product? Can you explain why posting the "teaser" photo and associated links is not a conflict of interest and not designed to generate interest in a product you have involvement with?
To me, it appears that you are promoting the "dream chip" product that are heavily (by your own admission some 50 pages back) involved with and it also appears that you are promoting the "aquasparx" led driver product that you are somehow involved with.
Care to explain?
Last edited by a moderator:
megadeth72
New member
I wish people would stop the witch hunt, wrecking the thread
mr.wilson
.Registered Member
I'm more concerned that witches are wrecking the thread. The thread is continually sidetracked to promote the Dream Chip & Dream Driver. All credibility is lost once personal gain enters the discussion.
Unfortunately, all roads lead to the Dream Chip & Dream driver when people ask questions about "Minimalist multi chip DIY". These two products couldn't be further from minimalist or DIY.
If you want to discuss and promote these products without any constructive criticism, it should be done in a sponsor thread.
megadeth72
New member
it is diy, obviously a raw led is diy
bhazard451
New member
LOL busted! I knew I didn't like this guy for a reason. Actively denying being a shill while then shilling another product is just unethical and hilarious at the same time. I wouldn't trust a word the guy says.
For those who actually would like a driver not being promoted by said Swedish guy, there are 6 channel LED arduino shields that work the exact same way. They can be found on ebay.
Or you could use my new favorite, the Mean Well LDD-1000HW for each channel, off a switchable power supply.
BeanAnimal
Premium Member
I would imagine a lot has to do with where the actual emitters end up under the lens profile.
I think we also need to make a distinction between disrete optics and the lenses for the multichips. The multichip lenses are certainly appear to be truer to their angular specification. It should make it a little easier to choose an optic for a given fixture height and tank footprint.
BeanAnimal
Premium Member
Pretty sure apple is still using them in the macbooks. Maybe the PVR units were custom spec to save cost? Who knows. The nice thing about fans is that if you build around a standard, then you can change models if needed
mr.wilson
.Registered Member
Pretty sure apple is still using them in the macbooks. Maybe the PVR units were custom spec to save cost? Who knows. The nice thing about fans is that if you build around a standard, then you can change models if needed
It's never a good idea to use technology that hasn't been proven over time.
I had to replace both fans in my macbook pro after two years of use. Then I had to replace the video card three times when it overheated. I don't think the repair guy connected the heat sink properly.
BeanAnimal
Premium Member
Our only mac is only 3 months old (she had to have one) but I support several customers with macbooks and in general have not been overly impressed with their durability, though no fan issues that I recall.
I would opt for a ball bearing fan if possible. A small high speed fan can be used, but it will need to be shrouded well to be quiet. I like the idea of a massive copper heatsink that will prevent rapid chip failure in the event of fan failure. However, the CPU coolers that utilize heat pipes (shown here and in other threads) are likely going to be much easier to adapt. The shadowrock products get good reviews for performance and silence as does the Noctua NH-C12P
I would opt for a ball bearing fan if possible. A small high speed fan can be used, but it will need to be shrouded well to be quiet. I like the idea of a massive copper heatsink that will prevent rapid chip failure in the event of fan failure. However, the CPU coolers that utilize heat pipes (shown here and in other threads) are likely going to be much easier to adapt. The shadowrock products get good reviews for performance and silence as does the Noctua NH-C12P
To be a bit more serious:
I can add that Lasses current and previous involvement in any of my products are as customer and sometimes a Beta tester, just because he’s willing to do it for free and is quite good at find problems.
Regarding his name in one of the manuals;
At one point he installed my products at another person’s location and wanted the person there to have a manual so Lasse could be freed from future responsibility. Lasse was then kind enough to help me write one, for which I wanted to give him credit by listing him as an author.
My products are for sell and this card will also be, but I haven’t done any promoting of my products here and I will not do, as far as I can see I doubt that I will sell them outside Sweden at all (maybe on request), so you can all relax, I’m not a treat at all to anyone. This is small series of products that are made mostly on personal request.
Why am I developing this driver card? Because people (including Lasse) in Sweden (on the Swedish saltwater forum) asked if I could do that and I though it could be fun and in the end I might reach “break even” or if I’m lucky to sell enough of them even earn some money.
So to be very clear, Lasse is not getting paid to show pictures of his work on testing my driver card with the so called “shill chip”. I just very glad that he’s doing some testing.
I’m actually having a hard time to understand RC rules, can anyone talk about any products at all that can be bought from anyone but their sponsors without being accused for promoting it?
Sincerely
/Janne, AquasparX
I can add that Lasses current and previous involvement in any of my products are as customer and sometimes a Beta tester, just because he’s willing to do it for free and is quite good at find problems.
Regarding his name in one of the manuals;
At one point he installed my products at another person’s location and wanted the person there to have a manual so Lasse could be freed from future responsibility. Lasse was then kind enough to help me write one, for which I wanted to give him credit by listing him as an author.
My products are for sell and this card will also be, but I haven’t done any promoting of my products here and I will not do, as far as I can see I doubt that I will sell them outside Sweden at all (maybe on request), so you can all relax, I’m not a treat at all to anyone. This is small series of products that are made mostly on personal request.
Why am I developing this driver card? Because people (including Lasse) in Sweden (on the Swedish saltwater forum) asked if I could do that and I though it could be fun and in the end I might reach “break even” or if I’m lucky to sell enough of them even earn some money.
So to be very clear, Lasse is not getting paid to show pictures of his work on testing my driver card with the so called “shill chip”. I just very glad that he’s doing some testing.
I’m actually having a hard time to understand RC rules, can anyone talk about any products at all that can be bought from anyone but their sponsors without being accused for promoting it?
Sincerely
/Janne, AquasparX
Let's make something clear. There is no restriction on INDEPENDENT evaulation of products, regardless of whether the product is related to a sponsor. It would be silly and uniformed to suggest otherwise, as a quick search of the discussion forums would indicate. We have never allowed, however, and never will allow, persons to promote products who have the appearance of a vested interest in the product or company. It is especially distasteful when this is done by persons who attempt to give the appearance of independence that does not exist.
In this case, what walks like a duck, talks like a duck...
In this case, what walks like a duck, talks like a duck...
Thank you for clearyfing that part.
But could you please state clearly what you mean in this specifc thread, is ther anyone that is promoting something in a way that is not ok here or what do you mean.
Since I'm not a native english speaking persons I have trouble when you use the phrase above which just ends up, a duck is a duck but I guess that it is usually used in a specific meaning.
Sincerly
/Janne
As the manufacturer of the product, you cannot promote it/them on Reef Central. Since Lasse has been involved (at a minimum) in drafting manuals for the product and assisting in testing of the product, his relationship with your company crosses the line of what would be considered an independent evaluation.
omg, outrageous, who do you think you are sir?
We have rc mods crawling out of every orifice on this thread, yet this is allowed with no sanction!
What rubbish!
If there are no sanctions for your kind if incivility then the forum becomes like anarchy.
Last edited:
