Interesting new wavemaker

[hillbilly]

I heard it will be about $550 US. Tunze says the waves are very low torque, and torque is what would damage a tank. Very safe they say.

 

[Anonymous]

Isn't the Wave2K somewhat like this?

 

[Anonymous]

Yes, but W2K does is a fixed frequency type, so does not take advantage of the natural wave frequency of the tank.

It is much easier to maintain a oscillating pendulum (same physic) by driving it to overcome the damping factors (friction, etc) than to rock it back and for to a fixed frequency.

 

[liquid]

The Wave2K uses a plunger to move water. This one sounds like it uses a pump of some kind.

Shane

 

[Anonymous]

same principle, use a mechanical device to move water in and out of a cavity. anyone tried the milk jug experiment? Or we have a bunch of arm-chair reefkeepers here?

 

[Anonymous]

milk jug experiment?

i see what you mean about fixed freq vs. tank freq. though.. makes me wonder what'll happen w/ the tunze if the controller goes ape for any reason... 8O

 

[rabagley]

i see what you mean about fixed freq vs. tank freq. though.. makes me wonder what'll happen w/ the tunze if the controller goes ape for any reason... 8O

Well, as long as it loses the frequency setting at the same time it loses the intensity setting, probably not much. It'll just turn into a full power Tunze Turbelle (~3000gph). If it manages to slip the output power to full while retaining the frequency, you could have a few gallons on the floor...

Somehow, I think that's unlikely. You'll lose the controller or you won't. The little embedded computer inside there is probably pretty well debugged. Those are small programs and fairly straightforward to make sure they're absolutely perfect.

Regards,
Ross

 

[Anonymous]

yeah, proms are definitely a good way to go for things like that. - i'd rather have a medusa than the ghetto-style firecracker-controlled x10 setup i'm currently running with, but for a little 30 i just can't justify the expense..

i know the pdf says fall '04, but does anyone have a firmer eta? - may have to launch a bigger tank as a birthday present to myself..

 

[mark78]

The fish in that video don't look to thrilled to me lol :/

Funny the other night I was sitting watching tv, and grabbed a cheap lighter (not a bic), held it on its side, and moved each end ever so slighty up and down in sync, amazing the little wave that got going in there considering I was hardly moving it. Then I started to try and think how I could put a tank on shocks and make it do that, then I realized that was getting to be a bit silly lol

Glad to see theres another way to get the exact same effect

 

[liquid]

Still cheaper to put a Borneman or Carlson surge on a tank if that's what it costs! lol

Shane

 

[Anonymous]

milk jug experiment?

see this post:
http://reefs.org/phpBB2/viewtopic.php?p=489432#489432

The issue with surge tank is the difficult in controlling the frequency of dump. You can try it with a ball valve or a butterfly valve, but it is not any better than an actuated wavemaker with a matched frequency to the tank. AFAIK, very few people, if any, tune their actuated ball valve setup to match the resonance freqency of the tank.

 

[middletonmark]

I would imagine it works like the turbelle electronic pumps which are low voltage and don't really turn off and on, but speed up and slow down via an electronic control box. Cycling an electronic pump on and off will quickly destroy it.

Actually, the speed-variable Tunzes I believe run DC ... and never fully `turn off' just cycle up and down in speed/current.

From what Roger suggested, this has something like a Turbelle in it, something between the present larger sized one and the 5000 gpm one that's coming out later this year as well. [and thought the price was $400 something US].

Looking forward to seeing it in action at IMAC, expecting a little pool of drool around that tank

 

[Anonymous]

If they just convert directly from euros to dollars, the price (as listed on that pdf brochure) will be just over $400USD.