View Full Version : maxi jet mod???
01/26/2006, 11:32 AM
i was thinking maby we could moding a maxijet with propellors, kinda like a tunze at a meeting some time?
could this be arranged? who would be intrested?
02/02/2006, 06:26 PM
02/02/2006, 06:38 PM
You could have a meeting at your house and have whatever you want as a topic what do you think?
August and november months are available
August is spoken for as of right now. November is still available.
02/04/2006, 07:13 AM
You can't wait till NOVEMBER!!!!!
I am doing it now. I read both of those posts. I got the impeller apart. Fairly easy. Now I am ordering the prop, shaft, and hitting Petsmart with the dog and kids to get the tubing and Home Depot to get the glue.
PM me if you need any more info. Give me to next weekend.
02/04/2006, 07:22 AM
Get the pictures comming:thumbsup: :thumbsup:
02/05/2006, 07:25 AM
Can anyone with a Tunze see if there's a patent number on the box or product literature? A patent lawyer student in my firm said the information is open to the public and that he can get the patent info with the number.
02/05/2006, 09:06 AM
I saw a post of how it was done by somebody on www.nanoreefs.com
02/05/2006, 09:37 AM
There are posts on ReefCentral. According to some folks who have done double props on the maxijet 900/1200 have gotten flows up to 1400gph. Yes, 1400gph. I think someone said 1600.
I asked about a 90 gallon tank, they said 2 of the mod. No way these are going into a 20 gallono nano.
Someone on the boards will make the whole thing for you if you send him the impeller assembly for 20.00.
I am working on it now. My props come in on Thursday.
02/05/2006, 02:24 PM
so rich, you are doing this mod at your meeting? it is pretty much out of the question for me to have a meeting at my house. that parents won't let me. hows the bio-ball mod coming? i just stole some from my dads pond.
02/05/2006, 03:11 PM
No, I won't be attending the meeting. It is very simple. Once you get over the fact that you are trashing the impellor, you basically create a shaft that is attached to the magnet. On the end of that shaft is a single or double propeller. I decide to pass on the bioball mod.
02/05/2006, 07:18 PM
y did u decide to not do the mod?
02/05/2006, 07:20 PM
I was going to do on a cpr backpak, but I found the venturi mod works well enough. I will be starting on a DIY Deltec, so I don't really need to go that route.
02/06/2006, 03:25 PM
I'm currently working on the MaxiJet mod as well, GROSSR's right, it's a fairly simple mod. The hardest part is knowing what parts you need and gathering them together.
02/06/2006, 04:15 PM
sounds like a GB?? :D
02/06/2006, 06:24 PM
What is GB....?
02/06/2006, 07:29 PM
i was wondering the same thing. what ventri mod? i did the bio ball mod and there seems to be no differance.
02/06/2006, 07:39 PM
Group Buy for the parts, so all we can get me mod done :D
02/26/2006, 08:14 PM
rich so you get the mod done???
and one more question where you guys got the rigid air tubing with 1/8OD???
02/26/2006, 08:35 PM
you can get tubing from a hobby shop.
probably get the propellers from them too, not sure if they would have the pitch you would want.
its worth a try.
02/27/2006, 05:09 AM
i got everything but the tubin, the stupid lfs just have 3/16 and im looking for 1/8, i still looking for it, thats the last part i need, after that everything is done
02/27/2006, 08:12 AM
I've finished my first attempt at the mod with a single propeller and the flow is CRAZY! I directly compared the flow side by side with an unmodded MJ1200 and the difference in water movement is definitely noticeable, especially the wide area of flow. It's very easy to do, my first time ever using a dremel and even I was able to complete it. Total cost in parts(excluding the maxijet) was less than $5. I used the 3/16" rigid tubing since I couldn't find any 1/8" neither.
One issue I'm trying to address right now is the vibration I'm getting from the unit, causing a little bit more noise than an unmodded MJ1200. I'm pretty sure the problem is that my impeller is slightly off-center, but I think I'll leave the unit I currently made alone for now. I'm going to be making another one with black pvc and (hopefully) cleaner cuts.
I'll try to get some pictures to show everyone what I did. What was the website that hosts pics for free again?
02/27/2006, 08:17 AM
Bah, double post...
02/27/2006, 10:16 AM
imageshack or imagebucket. Where is the page for a how to on this mod?
02/27/2006, 12:04 PM
Basically tells you everything you need to know about the mod.
02/27/2006, 04:43 PM
02/27/2006, 05:44 PM
how do you used the 3/16 tubin if i keep drilling the impeler is going to be paper thin, i hope you have some pictures
02/28/2006, 08:08 AM
Sorries Gabriel, was pretty busy yesterday so I didn't get around to taking any pics. I have two different types of impellers, one for the 2" PVC where the 3/16" tubing slips right in. For the other tubing, I just used the metal rod from the MaxiJet impeller assembly to line up both the tubing and the propeller and glued them together with thick superglue gel. To prevent the metal rod from being glued also, I simply moved it around every few minutes to prevent the glue from bonding the rod and the propeller together. I know this is a pretty poor way of doing things but I was just concerned with getting a test propeller together. Ultimately I plan on using the 2" PVC propellers anyways, which the 3/16" tubing will fit perfectly inside.
Something to keep in mind if you're still looking for the 1/8" tubing, the inner diameter of the 1/8" tubing may be too small to fit your propeller rod through.
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