the best thing about the Valkyrie is its versatility so, in order to exploit it best, i magnetized all its weaponry and this is the result.
with my dear old Minicraft drill i've milled a circular groove (is this correct?) and then i glued the magnet, paying attention to keep it perfectly horizontal: this step is important, if the magnet isn't flat then the weapons will be skewed (and will of course suck).
as you can see the twin linked lascannon is scratchbuilt: i used, for the wings weapons, space marines razorback's lascannons and 2 other lascannons from cadian weapons team. they are long the same and with a bit of care you can make them look very similar.
i used this magnets (s0201n), bought on www.supermagnete.de, check them out!
the only tricky thing on this issue is that you must never get mistaken about magnets polarity: make north stick with south and viceversa, otherwise the magnets will repel each other!
next time i'll show you how to magnetize the central lascannon so stay tuned!