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Post by Racin' Rob on Sept 16, 2023 5:26:20 GMT -7
Please enlighten me on what constitutes a "ceramic grade" magnet. DR1s are listed as having polymer magnets.
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Post by dave632 on Sept 16, 2023 8:58:40 GMT -7
Okay, thanks for the info.
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Post by dave632 on Sept 16, 2023 9:06:51 GMT -7
Please enlighten me on what constitutes a "ceramic grade" magnet. DR1s are listed as having polymer magnets. I did a quick check on the DRs motor magnets with my gauss meter and they checked in at the high 1300 to low 1400. These could be considered weak poly magnets or strong Ceramics. Ceramics I have checked have a wide range. From 300 all the way up to 1100. It's up to the racemaster if he wants to allow this. |
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Post by pete on Sept 16, 2023 9:26:08 GMT -7
Please enlighten me on what constitutes a "ceramic grade" magnet. DR1s are listed as having polymer magnets. Ceramic grade speaks to how strong the magnet is. The DR1 comes with ceramic grade. Jag does offer the magnet in a stronger grade in the DR1GT. BSRT/Viper/wizzard/ ST have the magnets in ceramic as well as polymer. Ceramic magnets are for national organized class racing. Polymer/Most have a look that you can tell the different levels of strengh. Ceramic grade tend to be just a tad stronger than ceramic. All that said Jag DR1 magnets are not as strong as the BSRT Viper ect. because of shape and mass. Magnets should be matched. We are able to run any traction magnet in super stock* |
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Post by Racin' Rob on Sept 16, 2023 10:16:11 GMT -7
I have a converted digital scale to measure magnet strength. But the numbers are relative to my scale. No way to measure gauss. I guess that I can test them to see if they are stronger/weaker than JAGs. Any examples for the various chassis would be great.
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Post by Racin' Rob on Sept 16, 2023 10:28:09 GMT -7
Hopefully I am sending 2 cars for each class and 1 car for each shark pool.
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Post by pennywize619 on Sept 16, 2023 11:34:11 GMT -7
I have a converted digital scale to measure magnet strength. But the numbers are relative to my scale. No way to measure gauss. I guess that I can test them to see if they are stronger/weaker than JAGs. Any examples for the various chassis would be great. For the viper I've always stuck with level 4 for ceramic grade and the stock dr1 for ceramic grade. For pancake stock or dash ceramic or os3 magnets. |
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Post by pennywize619 on Sept 16, 2023 11:37:45 GMT -7
RR you're in.
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Post by dave632 on Sept 16, 2023 18:41:15 GMT -7
Magnets can be tricky. Without a gauss meter it is impossible to get an accurate reading and even with one the readings will jump around. Matching the armature to the motor magnets is key. I was just checking a G3 chassis that had Neo traction magnets. By putting level 10 traction magnets on the chassis the ET went down .06 and the trap speed went up by 3. Those things were so strong that you could easily race on the ceiling.
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Post by Deleted on Sept 17, 2023 8:05:56 GMT -7
I would imagine this has been discussed many times before. When you really boil it down does it matter what type material the magnet is made of? The strength is the omportant facter and to that has pointed out the measuring device is an issue in itself. I made my own meter and it gives me a reading. I also have a commercial meter and it gives me a different reading. So how do you control the use of magnets to be used in an event??? I can measure one type of magnet and get a reading say of 145 and measure a different set and get a reading of 500!
Example: PUll the magnets used in an event, measure them with SOME device and I bet they are all over the place on readings.
This is just a guess - I could be wrong - always wondered about that.
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Post by pete on Sept 17, 2023 10:19:38 GMT -7
I have HF scale I use as a reference for finding matched sets. As yours it gives me a reading. I can then look for a matching number. What you can see even with than scale is a strong magnet. I lay it motor face down. On a level C4 I see 35 to 40 grams of pull. So there is a bit of a search for the strongest matching pair.
Next grade up you will get 60 to 65 grams of pull. 5 gram differance then a 20 gram differance. You can tell.
Proxy racing here, your honor is to build to the rules.
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Post by Deleted on Sept 17, 2023 10:30:42 GMT -7
Understand Pete - so what is the difference between a ceramic magnet that gives a reading of say 300 on your device and a neo magnet that gives the same reading?
Other thing is one guy uses ceramic magnet as per the rules and it reads 300 on his device and another guy uses ceramic magnet that reads 500 on his device?
I guess you just go with - ITS A CERAMIC MAGNET and leave it at that?
Not trying to start a fire storm. Always wonder about it. IT shows that some cars are much faster then others and a great deal is due to magnet strength.
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Post by dave632 on Sept 17, 2023 17:58:28 GMT -7
I have been doing this a long time and I have found that matching the magnets to the armature is the most important thing. For example, put some neo motor magnets in a stock T jet chassis and it will be the slowest thing you ever saw. Those magnets will read 3-4000+ on my gauss meter when compared to the stock T jets 3-500. So, magnet strength is not always what you want.
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Post by pete on Sept 17, 2023 20:28:28 GMT -7
FS Dave said it well, its a balance. Put to much magnet and it goes the other direction.
Im not sure what your asking about meters, mine will be different than yours. 300 is 300.
Right now there are 5 racers than run under .500 at any given race with a Nitro Super Stock Inline at 20 volts. Track length 15' 71/2" 1000' scale.
Build a car and send it in.
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Post by skillet on Sept 19, 2023 2:16:10 GMT -7
If you have a magnet that has ceramic strength... Viper c4 ... tyco 440x2 magnet... stock dr1... use one of those and put on your scale. That will give you a reading.... stay within the tens...
You will be fine...
A magnet jumps by 100 you got a different strength...
Neos will jump by a couple 100s if your looking at gram...
There is a big enough difference in strength to tell between them...
If you get a set that's high and your not sure... I'd probably set them off to the side until you get a feel on measuring them more.
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