Valerian Posted June 16, 2012 Share Posted June 16, 2012 I was in the process of adding magnetized arms to one of my Dreadnoughts, and had a screw up: I made holes in the FW resin arms with a drill bit of precisely the same diameter of the rare earth magnet, and pushed the magnet all the way in with the wrong side/polarity side out (I don't know how I did it since I did check/test it ahead of time, but oh well). I haven't been able to pull it back out using other magnets; it's stuck in there good. I'm worried about damaging the fragile, and expensive resin arm, too, so figured I should ask here before taking further action. I'm wondering if I should try to heat up the arm a bit, perhaps in hot water, to allow the material to expand and loosen up; is this a good, or a bad idea? Anyway, I'm looking for a low-risk solution from those with more experience working with resin. Thanks, Valerian Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/ Share on other sites More sharing options...
J!MM!L!C!OUS Posted June 16, 2012 Share Posted June 16, 2012 If you heat it up and it expands, logically then the hole will get tighter and the magnet more firmly stuck. Try freezing it instead to shrink the plastic. Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087300 Share on other sites More sharing options...
J!MM!L!C!OUS Posted June 16, 2012 Share Posted June 16, 2012 or just widen the hole slightly with your knife and do an easy greenstuff repair job if required Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087317 Share on other sites More sharing options...
GhostLegion Posted June 16, 2012 Share Posted June 16, 2012 happens to me every so often. i tend to go the knife route and work the hole a bit wider. every so often the magnet is more than stuck so i resort to a paperclip sized hole from the other side to poke the magnet out with a pin. greenstuff smooths out the scar without a trace.... Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087320 Share on other sites More sharing options...
Valerian Posted June 16, 2012 Author Share Posted June 16, 2012 every so often the magnet is more than stuck so i resort to a paperclip sized hole from the other side to poke the magnet out with a pin. I hadn't even thought about that. Good plan for a last resort. Might try the freezer first then try to use the exacto knife. Any additional hazards to putting it in freezer? Would that make the resin excessively fragile? Thanks for the responses so far. V Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087325 Share on other sites More sharing options...
Darklighter Posted June 16, 2012 Share Posted June 16, 2012 every so often the magnet is more than stuck so i resort to a paperclip sized hole from the other side to poke the magnet out with a pin. I hadn't even thought about that. Good plan for a last resort. Might try the freezer first then try to use the exacto knife. Any additional hazards to putting it in freezer? Would that make the resin excessively fragile? Thanks for the responses so far. V A stronger magnet might do the trick or try and super glue a cocktail stick to the magnet and pull it out. Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087328 Share on other sites More sharing options...
Gurth Posted June 16, 2012 Share Posted June 16, 2012 try and super glue a cocktail stick to the magnet and pull it out. If you try this, be very careful you don't get any glue between the magnet and the resin, else you'll only make it harder to remove :tu: Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087333 Share on other sites More sharing options...
Valerian Posted June 16, 2012 Author Share Posted June 16, 2012 I eventually managed to dig it out with a hobby knife, without doing too much damage, and got it flipped around, whew! Thanks for the tips, fellas. V Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087475 Share on other sites More sharing options...
GhostLegion Posted June 17, 2012 Share Posted June 17, 2012 adventures in modeling...ha! have to love the strange mistakes that can happen....and the knowledge youre not alone in committing them! good to hear you got it managed. Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087536 Share on other sites More sharing options...
Purge Posted June 17, 2012 Share Posted June 17, 2012 I've done the same thing. I manage to get the magnet back out by using a smaller drill but and crazy glueing the magnet to that to pull it back out. I must admit it was a bit scary to think that I may have just glued a drill bit to a mistake. I like the cocktail stick idea. It's much safer. or you could just drill the magnet away to nothing and insert a new one? Haven't resorted to that yet myself and you run the risk of slipping and punching a hole through the entire piece. Glad to hear you got it all resolved. Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3087566 Share on other sites More sharing options...
ShinyRhino Posted June 18, 2012 Share Posted June 18, 2012 I wouldn't recommend trying to drill through a rare earth magnet. It's not the safest idea. For those who mess this up in the future, you can also drill a small hole NEXT to the misaligned magnet, insert a paperclip or piece of brass rod down the small hole and pry upward to pop the magnet out. I actually screwed the polarity of a magnet up on a metal Dread arm, and had to use this method myself. Just be sure to drill deep enough that you get past the depth of the magnet. Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3088475 Share on other sites More sharing options...
Brother-Chaplain Nemiel Posted June 19, 2012 Share Posted June 19, 2012 Nice that you got it fixed, i just HATE to damage any of those expensive FW stuff! Hmmm just got my magnets, not used them so far...since i wanna use 3x1mm magnets i better use a 3,5mm drill! I also want to magnetize my metal dread, i used one 3x1mm is strong enough to hold a metal arm, without using a magnet in the arm, just a 5-6 round and slim metal disc so polartiy even doesnt matter...will test this on a CC metal arm i guess! I love this forum, very inspiring in so many ways even if learning by others mistakes! Link to comment https://bolterandchainsword.com/topic/254243-magnet-screw-up/#findComment-3089729 Share on other sites More sharing options...
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