DIY powerhead magnet mounts

[Spiffyguy]

I need to make some mag mounts for my maxi jets. the suction cups don't seem to work anymore. i know you can use some magnets from a hobby store like micheals or hobby lobby. What is the epoxy/coating used to over the magnets. Any info or good links?

Thanks

[Neptune777]

This is what you need:

http://www.kjmagnetics.com/proddetail.asp?prod=BX0X06BR

[Spiffyguy]

awesome I guess they are already sealed so you don't have to do it yourself. What sort of glue works on them? Super glue gel?

[J. Montgomery]

Neptune, have you used any of those magnets?

[zenmonk34]

they look tiny. Would they hold up a seio 820?

[smcnutt]

I wonder if the smaller one (item #BX084PC-BLK ) would work well enough?

What kind of pull force is needed to hold thru different thicknesses of glass tank? How would these compare to simply using different size MagFloats?

[Spiffyguy]

I thought about mag floats but they are fairly large. I like these small ones but I wonder if they are better and cheaper in the long run than fabricating ones.

[J. Montgomery]

I use the AlgaeFree Sure Grip magnetic powerhead holders, those things are beasts.

[impur]

I ordered 3 of those rubber coated ones that Neptune linked for the outside of my magnet mount, on the inside i am encasing these in resin

http://www.kjmagnetics.com/proddetail.asp?prod=BX0X04

With a pull force of 85lbs on the inside and 50 on the outside it should hold ;)

This is my prototype swivel mount.

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0793.jpg

[miwoodar]

<a href=showthread.php?s=&postid=10461982#post10461982 target=_blank>Originally posted</a> by impur
I ordered 3 of those rubber coated ones that Neptune linked for the outside of my magnet mount, on the inside i am encasing these in resin

http://www.kjmagnetics.com/proddetail.asp?prod=BX0X04

With a pull force of 85lbs on the inside and 50 on the outside it should hold ;)

This is my prototype swivel mount.

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0793.jpg

Impur - looks great! Do you have any more pics of the pieces used?

[impur]

Sure do. If i could only find it in black...

I'll be making a thread once i get the magnets.

Plastic showerhead

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0772.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0774.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0783.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0784.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0785.jpg

[impur]

1/2" PVC male adapter

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0786.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0787.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0789.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0790.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0791.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_0792.jpg


Sorry for the hijack Spiffyguy

[Neptune777]

<a href=showthread.php?s=&postid=10460658#post10460658 target=_blank>Originally posted</a> by J. Montgomery
Neptune, have you used any of those magnets?

Not yet...but they look like something good to play with at some point. :)

[Neptune777]

<a href=showthread.php?s=&postid=10460902#post10460902 target=_blank>Originally posted</a> by zenmonk34
they look tiny. Would they hold up a seio 820?

Check the specs on the website....they pull/hold around 50# each. Small but powerful!

[miwoodar]

Brilliant!

[Spiffyguy]

i need to resurrect this project and get my MJs mounted. I will need 6 magnets total. Will these work?

http://www.magnet4less.com/product_info.php?cPath=1_11&products_id=146

I think they need to be coated with epoxy. If so what should I coat them with? This will be holding up a 1200 and a few 900s.

Thanks

[impur]

No those won't be strong enough. You need at least 65lbs pull force, 80-100 would be better.

Buy some casting resin from your local crafts supply.

Here is mine in action

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_1067.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_1068.jpg

http://img.photobucket.com/albums/v292/impur/DIY/MJ%20swivel%20mount/100_1070.jpg

[Spiffyguy]

did you attach the mount to the top cover of the MJ? these have 90 lbs. I hate to go too strong though

http://www.magnet4less.com/product_info.php?cPath=1_11&products_id=150

[Spiffyguy]

nm about the mount. I scrolled up lol. How strong do these things really need to be. My Tunze 6025 manual says they are between 55 and 110 and I find them to be a bit too strong.

Also did you add any rubber feet to your mounts? I would be concerned about damaging the glass.

[impur]

Nope, no rubber feet.

I used 65lbs pull force for mine, and they won't work on 1/2" glass. So it all depends on your glass. Mine is 3/8".

[Spiffyguy]

not sure the thickness. my tank is a standard AGA 55 gallon.

[impur]

I would go with a min of 50lbs pull force.

What if you upgrade later though? Would be nice not to have to make them again eh? ;)

[Spiffyguy]

Ok how bout these. they are 65lbs pull force. should do the trick.

http://www.kjmagnetics.com/proddetail.asp?prod=DX02

For the resin I found this at micheals. There is a local one so I will probably just head there. Is this the right stuff. Want to make sure it is reef safe and all.

http://www.michaels.com/art/online/displayProductPage?productNum=gc0509

Did you use a mold? Does the piece on the outside of the tank need a handle or grasp of some sort?

Thanks

[ctreefer]

Impur, that is a way cool mount for your maxijets. Nice job.

[rivdog]

Impur, nice, what are the pvc parts ur using? and does it swivel

[dngspot]

My magnet mods are somewhat of a copy of impur's design. I use them to support AC-70's. The AC's weigh about a pound more than the Maxi's and one magnet with 65 lbs of pull force is not enough to hold the AC's up. I used 2 on each side and that is enough.
I casted my magnets in a compartment container with non removable dividers, when the resin is dry the resin and magnets pop out when pushed from the bottom of the container.


http://www.wichitaaquariumclub.com/photopost/data/500/medium/6.JPG
http://www.wichitaaquariumclub.com/photopost/data/500/medium/9.JPG

[Spiffyguy]

cool thanks for the info. I guess I will get the 65 lbs mags and start casting them up.

[impur]

Yah thats the stuff Spiffyguy. Those magnets will work great.

ctreefer - thanks! How are those anthias doing??

rivdog - Only pvc part used was the threads from a 1/2 male adaptor. The rest is a shower head. Yes it sure does swivel! :D

[speckled trout]

dngspot,


Which casting resin did you use to encase the magnets? It didn't stick to the "mold"? It just popped out?

[dngspot]

The resin is pretty general. It came from Micheals. The resin does not stick to the box that I used. I had to push from the bottom then it would move, a few taps on the table, upside down, and it was out.
I did build the type that impur made. The cup had to be cut away from the resin. When I bought the sectioned box, I was shure it would have to be distroyed to get the resin out. In the long run it worked out great.