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Being on a budget with WH40k it helps alot to reuse vehicles for different purposes. I'm creating this step by step after the fact, but with the pictures and the explaination I feel it should give people a good idea on the process for magnetizing their vehicles.
Here I wanted to be able to use both Predator patterns while only purchasing 1 kit. This lead me to the use of magnets. So I ran off to a local craft store, and picked up those large soft black magnets. These things are absolutely horrible. I can hardly believe they should be allowed to sell these things and call them magnets, they wouldn't even hold a single sheet of paper to the fridge.
Anyhow, upon wasting the grand total of $2.00 and some time, I did some research and found the perfect magnets. Neodymium Magnets ( NdFeB ). I purchased mine online (K&J Magnetics) in a batch of 100. They are surprisingly cheap. At the time I was only magnetizing my vehicles, so I decided on the Disc, 1/4" x 1/16". These provide a very large pull radius allowing for multiple layers of plastic model to lie between them and still provide an excellent hold.
In my design of magnetizing the sponsons, I went ahead and glued the side hatch in place. For my purposes this vehicle would nearly always be used as a Predator version. The first thing I did was cut the post that connects the weapon to the overhang on the hatch. I cut it right below the little square on the and glued 1 of the magnets flush with the bottom of the square. This allowed me to still connect the top aiming reticle to the sponson as I like the way it looks.
As for the weapons before you glue them together or glue in place the magnet inside it, take a magnet and let it be attracted tot he magnet you glued to the verticle connector. Then using a fine sharpie (permanent marker) mark the magnet, this way you can now glue it in place with the correct orientation and avoid trying to pry off magnets glued in place.
Now with the magnet marked, glue it flush with the top of the weapon with the maked side resting on the cylinder where the extension arm would have connected to. I'll try to add a pic here. *** got one a little blurry but this is the final look that you are trying to make.
Ok with the sponsons taken care of magnetizing the turret was slightly more daunting as the turret itself is hollow, the weapons for the turret have pegs, and they don't really have room for the magnet size that I had at the time.
First, go ahead and glue the weapons together, I tried many different ways to fit a magnet inside them in an attempt to hide them, but alas it was not to be. Once the weapon is glued together, flip it over. You'll see two shelves. A stroke of pure luck, the magnet's 1/4" diameter fit in the section nicely. However, there was still a small smount of trimming needed so the magnet would fit high enough as to not point the main weapon into the dirt. What you need to do is cut the side of the shelf down to just past the peg on the outside of the weapon, then cut towards the middle shelf of the weapon. This should allow the magnet to be glued flush against the shelf with none of it hanging over the angled piece. Also, you'll need to cut off the two outer pegs on the main weapon, they won't be needed as the magnet will hold the weapon in place.
Ok now was time to get creative, as there is nothing solid to glue a magnet to. I decided to glue a supporting piece of sprue to the inside of the turret. To begin, place another magnet on the weapon, mark it, then place it on the bottom of the turret in place. This will give you the location to glue the supporting sprue in place. Cut a piece of sprue long enough to fit inside the turret, just behind the location the swivel pegs would have gone. Glue that in place to the bottom of the turret.
Dry fit the weapon again, and mark on the support sprue where the magnet is. Now you'll also need a small piece of spure about the width of the magnets diameter, to glue in that marked spot, as one sprue piece height isn't high enough to support the entire magnet. Once the support sprues are in place and very dry. Even with zap a gap, you'll want to be doubly sure these supports aren't moving. Apply a slightly larger than normal quantity to the support spures where the magnet will rest. Place the magnet verticly, but flat against the supports. You'll have to wait a long while for it to dry, if you attempt to place the weapon before its dry you will pull it off the supports. Once dry it should look as follows.
Finished product images.
Last edited by Xpyre35; May 16th, 2009 at 20:26.
THank you so much. The square magnets you spoke about are crap.. ive used them before... However on my predator because i was impatient. Although i am now thinking of cutting the sponsons off to make them like urs
i dont know why i didnt do that in the first place, Didnt occur to me.
This is awesome! Thanks, i am going to try and magnetize my predator soon and with this giude i am confident i won't screw it up!
I have one question about the sponsons though, does the magnet in the sponson touch the magnet on the post or does the magnetic force keep them together?
Again thanks for your help.
These magnets are strong enough to hold quite well, even with a layer or two of plastic between them. There's at least a 3/4" pull radius for these guys. You definitely do not have to have magnet-to-magnet contact for these to hold.