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Post by dave632 on Nov 22, 2014 19:52:43 GMT -7
MaxTrax; I noticed they have a track section with neo magnets installed right into the track.
There was no price or part number for it. Anybody have any idea? I will give them a call Monday and ask if no one knows on this site. |
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Post by mike11422 on Nov 22, 2014 23:32:34 GMT -7
That's interesting. I don't own a maxtrack, just don't have the space to have one but thinking back to alpinks post about the unlimiteds running. With a section that has neo mags to stop cars will it require a "slick" down so tires are not destroyed. Not sure any nitro slots classes would fall into this category but something I thought of. Still a good offering for drag strips.
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Post by Deleted on Nov 25, 2014 17:02:43 GMT -7
$200 plus the last time I talked with him about it.
tried pricing the types of magnets that would be necessary and the price mounted quickly.
Paul Kniffen is a great guy and will take time to answer any and all questions. I think there is an email on the track site?
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Post by dave632 on Nov 25, 2014 17:36:01 GMT -7
Thanks for the info Al. I did send in an inquiry and received no answer.
I will start the process of moving my track into a dedicated track room next week. It will surely be ready by mid January. This will give me about 7' of shutdown which should be enough to stop the little rockets that will be running. I will have the problem solved by the time mid January comes around.
It seems to me I could drill and put my own neo magnets into a track. The 5x2mm are pretty cheap, I can buy 100 for around 15.00. Cushioning works pretty well but it can be hard on the bodies. Have not broken any yet.
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Post by Deleted on Nov 25, 2014 23:16:23 GMT -7
I would be interested in the source for those magnets if you don't mind sharing.
you can PM me.
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Post by AJR on Nov 26, 2014 4:21:35 GMT -7
Dave one thing that was brought to my attention when I was recently going to do this on my track was the orientation of the magnets embedded in the track versus the ones installed on the various cars. If they are opposing it could push the cars up instead of pull them down. I don't know how MaxTrax is getting around this, but I would be interested to know how it works if you try it. I may experiment with it a little during my track rebuild. I will post results if I do. It would not be a problem on my cars as I can orient the magnets on them, but could potentially be a problem with some of the proxy cars.
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Post by Deleted on Nov 26, 2014 6:32:40 GMT -7
JJ, I have been thinking about polarity too.
decided I would alternate each magnet so as to have possible push only half the time! what do you think?
also have opposite polarity on the other rail with the same alternating sequence.
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Post by AJR on Nov 26, 2014 8:32:01 GMT -7
Al I like that. I was excited initially when I heard about using magnets because I have very little options when it comes to lengthening my shut down. Then my bubble got burst when the polarity issue was brought up. I am in a good position with my track to do some experimenting and that sounds like a good idea. I will try that as well....thanks. I ordered 100 neo dots from China just for that purpose awhile back. Going to glue under track for testing. That will be easy enough. I will post any results. If that works it will be awesome. Otherwise I will be looking into the metal shut down like Phantom has. Aren't you using a metal shut down as well?
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Post by dave632 on Nov 26, 2014 9:20:35 GMT -7
Magnet orientation could surely be a problem because as stated it could cause the car to be lifted instead of pulled down. I will do some experimenting today.
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Post by Deleted on Nov 26, 2014 11:06:14 GMT -7
I have an all steel shut down of 6'.
I have not shunted it, but i going to make provisions for reverse polarity of about 9 volts being convertible to a dead shunt instead.
my powered area is 12 feet with 10'3.5" timed for an 1/64 scale 1/8 mile.
I have only 18' to build my track and that is the accommodation I was able to come up with.
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Post by AJR on Nov 26, 2014 16:10:38 GMT -7
Thanks Al that is great info. I thought you had posted it before, but forgot where. That's got me thinking now. I am going to go with steel if the magnets don't work out. I am not familiar with the dynamic braking, but that is going to change now as well. I haven't ever had any problems and have run the unlimiteds here several times but it's just something I haven't ever been happy with. Time to do some research. Thanks again.
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Post by dave632 on Nov 26, 2014 16:14:37 GMT -7
I did not get hardly any results trying to make the motors act as a generator/dynamic braking/ shorting the shutdown rails together. I am thinking more along the lines of a reverse polarity, maybe 5 volts. My current shut down is only 3' however.
Did a test. Had a 5 volt source that I tried and it worked to some degree. On a 10 mph car with traction magnets it stopped in about 1 foot. A T jet slowed some at that speed but still needed cushions. At 15 mph even with magnets it needs cushions but it slows some. No apparent effect on a 15 mph T jet. At 20 MPH there seemed to be little effect on my track but they are hitting the cushions at a foot and a half so it is hard to tell. When I move to the other room I will have 7-8' of shutdown and that should surely help.
Al have you tried it at 9 volts?
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Post by Deleted on Nov 26, 2014 16:48:19 GMT -7
yes, I have used 9 volt batteries and the t-jets not only stop, but in some cases will back up a little.
no noticeable damage to the cars either.
really high powered/fast cars just need a lot of run out room to stop.
the reverse polarity helped shorten that distance, but not by much.
still interested in the source of the magnets you are buying Dave!
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Post by dave632 on Nov 26, 2014 17:12:16 GMT -7
www.ebay.com/itm/290999352681?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AITThose are the magnets I found on E bay. 5mm x 2mm, pretty strong for as little as they are, $5.99 for 50. They make good traction magnets. Also available 5mm x 1mm for tighter spaces. I also bought some 5mm x 10mm x 2mm square magnets which might be good for stopping the cars. I checked and found most of the cars had similar polarity in their motor magnets but no so in the traction magnets. This would probably cause trouble trying to stop the cars with them. I also had some of the cars back up when using the 5v source.
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Post by Deleted on Nov 26, 2014 18:08:30 GMT -7
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