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Old 30-07-2017, 01:44 PM   #1
mijj
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Default home made magnetic gluing jig

I have had problems trying to keep walls etc. square (at 90degrees to each other) when gluing them down the corner joint. I have tried wooden helpers with spring clips and so on but they are rather unsatisfactory.
I happened across a magnetic jig not available (so it said) in this country.
So I made one. It is probably too big but I was influenced by the smallest size the sheet steel firm (online) would sell and cut. I might yet cut one side shorter. I made each sheet 24cm square.
Two points worth noting.
Austenitic stainless steel is not magnetic (I did not know that). Use Yellow pages and local sheet metal peeps (I took some magnets with me).
Rare earth magnets are too strong and will cause you to damage the plastic/card model. Better to get the usually weaker ones from the local ironmongers.
The wooden 'square' is shown in the photo, as is the 'crossing keepers cottage' my first use of the jig.
Jim.
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Old 30-07-2017, 03:00 PM   #2
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Well done Jim, however, not long ago somebody built the same thing, it's on here somewhere.


Maybe you could go into competition.
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Old 30-07-2017, 03:06 PM   #3
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Funny feeling it may have been Steve M. R-
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Old 30-07-2017, 03:08 PM   #4
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Someone else found it online and it was me and Tinker (I think) who made our own versions.
Can't agree with Mijj's comment about rare earth magnets damaging plasticard because they are too strong though. I use them and they are perfectly ok.
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Old 31-07-2017, 05:07 PM   #5
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Quote:
Originally Posted by Steve M View Post
Someone else found it online and it was me and Tinker (I think) who made our own versions.
If you put them up online perhaps a link? I'd be interested in the dimensions/design. Had I known I may well have copied it . I don't believe in re-inventing the wheel .

Quote:
Can't agree with Mijj's comment about rare earth magnets damaging plasticard because they are too strong though. I use them and they are perfectly ok.
I did not actually try them with plastic, I just assumed. I am trying to glue a plastic model ATM and If I'd put that much effort into removing the magnets, I assumed the glued joint would have parted company. Perhaps I am weaker as it took some pull to get them off or perhaps I should use better glue . How did you get on with card models using the rare earth magnets?
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Old 31-07-2017, 05:35 PM   #6
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Link to the original thread:

http://www.modelrailwayforum.co.uk/s...ad.php?t=11063


To get the magnets off try sliding them.
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Old 31-07-2017, 06:40 PM   #7
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Thank you for the link, it made an interesting read. Some body there knew about the non-magnetic stainless .
The rare earth magnets I originally got were too small, too thin so I ordered larger bar ones. They are so strong that if in my pocket they get attracted to metal in passing. Thanks for the advice on sliding them off as that is the only way they can get released.
It was interesting to hear that the magnet sheet was ony magnetic on one side, the magnets (round ones in picure) from the hardware store are like that.
I don't know how I missed your thread.
Jim.
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Old 31-07-2017, 07:09 PM   #8
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No problem Jim. I bought some neodymium magnets that are cylindrical - 5mm x 8mm. Strong enough to hold but easy enough to remove. I will be using the same ones for automatic uncoupling eventually.
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