impur Posted April 30, 2006 Author Share Posted April 30, 2006 Ok played around a little more today. I picked up the maxijets from Sean. They have a lot more power. I'm going to have to figure out a good way to attach the prop as these maxijets have a different impeller than the ones they are using on RC. Quote Link to comment Share on other sites More sharing options...
impur Posted April 30, 2006 Author Share Posted April 30, 2006 It only works just barely under water right now. As it gets deeper the prop shoots out of the pump. Sometimes it starts the wrong way and just propells itself out too. So i am going to need to get a good shroud for it before i see the full possibility. Off to HD in a little bit!! Quote Link to comment Share on other sites More sharing options...
impur Posted May 1, 2006 Author Share Posted May 1, 2006 Got the shroud all glued up. I'm going to cut some slots in it tonight and try it out. More pics to come. Quote Link to comment Share on other sites More sharing options...
impur Posted May 2, 2006 Author Share Posted May 2, 2006 Ok here we go. I'm not done cutting the slots but its coming together nicely. Here is the ABS fitting and PVC test cap i used The test cap has a lip just like the maxi intake A little chopping Mark slots Quote Link to comment Share on other sites More sharing options...
impur Posted May 2, 2006 Author Share Posted May 2, 2006 The result plus some glue The test cap actually had to be cut a little, it was barely too small. Either that or shave the maxi but i opted to cut the test cap Perfect fit with the plane wheels Quote Link to comment Share on other sites More sharing options...
impur Posted May 2, 2006 Author Share Posted May 2, 2006 I'm using the dremel on the slots, i haven't picked up the miter saw yet. And its a little slower going so i'm done for the night. I'll finish it tomorrow and should be done. Quote Link to comment Share on other sites More sharing options...
impur Posted May 4, 2006 Author Share Posted May 4, 2006 Ok so here is the finished product. Man this moves some water, and its just the mj600! I just need to do some touchup work on the shroud and attach the plane wheel to the end. Quote Link to comment Share on other sites More sharing options...
impur Posted May 4, 2006 Author Share Posted May 4, 2006 Here it is in action. I'd say its moving close to 1000gph. Here it is along side a Seio 820. The Seio is on the right Again Seio on the right Quote Link to comment Share on other sites More sharing options...
impur Posted May 4, 2006 Author Share Posted May 4, 2006 Uses 7.5w versus 16w for the seio. Has a wider flow and can be felt farther away from the pump too. Quote Link to comment Share on other sites More sharing options...
R-3 Posted May 4, 2006 Share Posted May 4, 2006 Hey Miles I got 2 900's laying around you could do if ya need more practice!!!! LOL. Looks good man. I have a mitre saw if ya need to use one. Maybe sometime we can hook up and make a bunch of shrouds. Later Ryan Quote Link to comment Share on other sites More sharing options...
impur Posted May 4, 2006 Author Share Posted May 4, 2006 That would be cool. I have a miter saw, but its in Roseburg so i just have to go pick it up. I picked up a few other fittings to use as shrouds for the 900. I'll be doing that one next with an octura prop. Its a little smaller, but has much more pitch to the blades. I got the prop all done and tried running it without a shroud and wow, those are even more powerful. Its pushing more than the 600. These are gonna be perfect for my 55gal. I'm gonna work on the DIY seaswirl type mod next to connect them to. Quote Link to comment Share on other sites More sharing options...
rude944 Posted May 8, 2006 Share Posted May 8, 2006 What did you use to keep the impellor from spinning out of the transformer? What about to get it spinning in the correct direction? Are you an engineer? Quote Link to comment Share on other sites More sharing options...
impur Posted May 8, 2006 Author Share Posted May 8, 2006 I used some tiny zipties to secure the plane wheel to the end of the shroud. I drilled out the center of the plane wheel to accept the impeller shaft so that holds it into the pump. As it was without the plane wheel, once the prop started spinning the force of it pushing water kept it in the pump. I starts up the correct way about 75% of the time, so when i spins backwards i just stick my finger in there to stop it and it spins correctly. Obviously i need to install a stop for that problem. But since it needs to be brought to the surface of the water to start, i didn't incorporate a stopper. I figure i'll have it running continuously anyway. I'll get ya a few more pics tonight. Quote Link to comment Share on other sites More sharing options...
siskiou Posted May 14, 2006 Share Posted May 14, 2006 Hey, this looks great! How much $$ are in that little mod? Quote Link to comment Share on other sites More sharing options...
impur Posted May 14, 2006 Author Share Posted May 14, 2006 Cost me about 5 bucks in parts. Quote Link to comment Share on other sites More sharing options...
Guest Ahbrit Posted May 14, 2006 Share Posted May 14, 2006 and if you were to do it again, how much time? Quote Link to comment Share on other sites More sharing options...
impur Posted May 14, 2006 Author Share Posted May 14, 2006 With the battery powered dremel it took time, i could only cut about 1/4 of the slots at a time before the battery wore down. I need to take a short trip down to roseburg this week and i'll be picking up my miter saw, that should make it a real quick job. With the saw i'd say the whole process can be done in 20 minutes + glue time. Quote Link to comment Share on other sites More sharing options...
rmhuntley Posted May 14, 2006 Share Posted May 14, 2006 it could also be done pretty easily and quickly w/ a router and routertable Quote Link to comment Share on other sites More sharing options...
impur Posted May 14, 2006 Author Share Posted May 14, 2006 For sure. Quote Link to comment Share on other sites More sharing options...
siskiou Posted May 14, 2006 Share Posted May 14, 2006 Did you say you were working on a DIY seaswirl, too? Quote Link to comment Share on other sites More sharing options...
impur Posted May 15, 2006 Author Share Posted May 15, 2006 I will be once i get the shrouds cut the way i like. It will be like a seaswirl but not exactly the same. Some guys on RC are taking real slow motors, about 1-5rpm, and mounting them in a small project box. Then you extend a piece of PVC down thru the box into the tank and attach a powerhead to that, so the pump moves back and forth. Quote Link to comment Share on other sites More sharing options...
andy Posted May 18, 2006 Share Posted May 18, 2006 Well, I've finally got around to taking a few pics of my try at the mod. Here's what I managed: I made the shroud out of schedule 80 PVC. I used my table saw for cutting the shroud to length, cutting the groove for the "grabbers" on the Maxijet, and cutting the slits. The crossbrace is styrene and the shaft is carbon fiber rod. I'm currently using an Octura 2035 (which I had to shave down, it was too much prop for this particular Maxijet motor) but plan on replacing it with an Octura 1435 when I can lay my hands on one. It's really quiet and pumps a LOT of water. I'm sure it'll give even more flow when I get the new prop. Quote Link to comment Share on other sites More sharing options...
impur Posted May 18, 2006 Author Share Posted May 18, 2006 Looks awesome Andy. Quote Link to comment Share on other sites More sharing options...
impur Posted May 24, 2006 Author Share Posted May 24, 2006 Ok had a delay getting the miter saw, but i'll be picking it up monday and will bust out a bunch of shrouds next week Quote Link to comment Share on other sites More sharing options...
andy Posted May 25, 2006 Share Posted May 25, 2006 I'm jealous. Cutting the shrouds evenly on a table saw is a bugger. Edit: Oh yeah, I measured the flow (the 1gal bag method) on my MJ600 w/ shaved Octura 2035 -- flowing 750 gph. Quote Link to comment Share on other sites More sharing options...
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