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Old 05-01-2011, 04:05 PM   #11 (permalink)
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not quite sure I can picture what you are saying.

But two main reasons fo no slot would be:

1.) I have a p68sc in quite nice original shape, kinda hesitant to start choppin it up.

2.) have to pay someone to do it right, so it looks decent.
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Old 05-01-2011, 04:08 PM   #12 (permalink)
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double post...
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Old 05-01-2011, 08:18 PM   #13 (permalink)
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googled "buy magnets" and came up with these guys K&J Magnetics - Strong Neodymium Magnets, Rare Earth Magnets they have lots of variety as well as a "stregnth" guide for each product they offer....
we need to figure out the strength of a springfeed spring and the thickness of the average feedtube wall. from there we should be able to figure out what magnets they offer will be strong enough
allso i think we will need the spring to be made from a nonmagnetic metal aluminium, brass, copper something like that
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Old 05-01-2011, 10:15 PM   #14 (permalink)
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I was thinking about that, But I dont think it would have too much of an affect on the spring, are there springs available made of other material that would fit this application. If you have one magnet in the plunger (the thing that pushed the balls) and another on the outside, that attraction is going to be considerably more then to a thin metal wire spring. So it should be quite obvious when the two magnets interact.

and nice find with the web site. We have a bunch of magnets sitting at work that I was playing around with, but have no spring fed markers to get any kind of proof of concept going. I was going to buy a spring from luke's customs to try this out.
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Old 05-01-2011, 11:18 PM   #15 (permalink)
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I think stuffy has springs too...
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Old 05-01-2011, 11:38 PM   #16 (permalink)
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I think stuffy has springs too...
he's not making them for awhile until school is over. right now palmer's is the only one I know for a source
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Old 05-01-2011, 11:50 PM   #17 (permalink)
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Been here... tested this... It will work. Use magnets in the follower, and create a small partial ring around the feed tube with appropriately polarized magnets in it, and to withdraw the followerm you simply pull the ring back. If you want to be super clever, make the magnets in the ring adjustable, so you can determine the amount of force they exert on the outside/inside of the feed tube. Then the ring can move with the follower and you can see when you are out of paint.

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Old 05-02-2011, 12:30 AM   #18 (permalink)
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I was thinking about that too, you could probably just leave the magnet on the out side, and watch it slide as the paitn is used. and when you reload you push the magnet back to a point were something on the outside would stop the magnet from sliding back up because of the spring.
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Old 05-02-2011, 01:30 AM   #19 (permalink)
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This isn't my idea, I saw it awhile back on here (can't remember who's gun it was) but I thought it was rather ingenious:

1. Drill a small hole in the spring feed's front cap
2. Insert string through hole and run along down the middle of the spring
3. Tie a knot in the end that remains outside
4. Attach the other end to the back side of the follower

That way all you have to do is pull and hold the loose end of the string to retract the follower and allow you to reload.
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Old 05-02-2011, 02:32 AM   #20 (permalink)
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This isn't my idea, I saw it awhile back on here (can't remember who's gun it was) but I thought it was rather ingenious:

1. Drill a small hole in the spring feed's front cap
2. Insert string through hole and run along down the middle of the spring
3. Tie a knot in the end that remains outside
4. Attach the other end to the back side of the follower

That way all you have to do is pull and hold the loose end of the string to retract the follower and allow you to reload.
yeah its a cool idea too the only problem is you have a string hanging out the front of the marker (on a p68 or kp it would be pretty long)i could see that being annoying and get caught on stuff especially in thick brush
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