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Post by skillet on Nov 21, 2021 19:34:26 GMT -7
I know the feeling. Just looking reminded me of that 42awg nightmare I put myself through.
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Post by Eagle Racing on Dec 6, 2021 14:43:52 GMT -7
37 Chevy on an Eagle N20/30 Long wheel base chassis
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Post by ecbill on Dec 6, 2021 15:28:21 GMT -7
Looks killer! Flames, Chrome, classic styling and Eagle Chassis. What more could you want?
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Post by jjwallace on Dec 6, 2021 16:20:36 GMT -7
Sooooooo shiny!! I like the orange and the blue. Sweet ride!
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Post by Eagle Racing on Dec 8, 2021 6:55:01 GMT -7
This is not a how to do it article. Thought I would just show the rig I use for balancing the armatures I wind. The armature loaded up in the balancer is a Mitsubishi 010. It is one of my 2.4 ohm armature. If you look closely at the shaft you will see black marks. I mark the shaft with one, two and three black marks to show which pole is down for removing material. I spin the armature using my air brush. One of the pics shows the tools I use. I use a vise to hold the micrometer. The level is used to of course level the micrometer. The triangle file is used to etch the placement of the balancing groove. I use a handpiece, that is variable 1000rpm to 35,000rpm to cut the groove.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 8, 2021 9:13:06 GMT -7
in a video I saw of a similar set up, that guy actually leaves a slight air gap on one end of the armature to further reduce friction. thank you Robert for sharing your set up
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Post by dave632 on Dec 8, 2021 9:45:11 GMT -7
Thanks for the tutorial. I made a similar setup with a Micrometer I had. My problem with it was I had to grind the armature shaft to a point, otherwise it would not spin straight even leaving a small air gap on one side. How do you overcome that problem?
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Post by Eagle Racing on Dec 8, 2021 13:24:56 GMT -7
Thanks for comments, I do leave an air gap to reduce friction. Dave I have not had that problem. The blast of air from the air brush gets the arm spinning super fast. I am thinking about a ball bearings, you might try that.
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Post by Eagle Racing on Dec 14, 2021 6:12:51 GMT -7
Here is a video of armature spinning in the balancer. Just click the black blank video.
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Post by Eagle Racing on Dec 15, 2021 5:42:06 GMT -7
Here is another project headed to ebay, search snapfit. My version of the Dodge Daytona Charger Pro Mod style. Of course it is setting on one of my short N motor chassis setups.
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Post by dave632 on Dec 15, 2021 8:34:24 GMT -7
Saw the demo, looks good, mine does not work that well but I have not tried a Pancake arm on it yet.
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Post by ecbill on Dec 15, 2021 13:23:46 GMT -7
Here is a video of armature spinning in the balancer. Just click the video. Not sure why the sound did not come through. It really ad's the effect.
Looks like it vibrates a lot. How do you determine the heavy spots and when do you know it’s balanced?
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Post by Eagle Racing on Dec 15, 2021 22:16:59 GMT -7
Here is a video of armature spinning in the balancer. Just click the video. Not sure why the sound did not come through. It really ad's the effect.
Looks like it vibrates a lot. How do you determine the heavy spots and when do you know it’s balanced? Yep sure does. If you notice the note pad it has 1,2,3 on it and the marks under each show which one was at the bottom the most. That is the heavy side. As you start removing material the vibration will begin to stop. Balance is determined when no heavy side can be determined. For example you spin it six times and each stack is at the bottom twice.
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Post by ecbill on Dec 16, 2021 5:20:08 GMT -7
So the spinning doesn’t really tell you anything, it’s where it stops that matters.
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Post by Eagle Racing on Dec 16, 2021 12:30:48 GMT -7
So the spinning doesn’t really tell you anything, it’s where it stops that matters. As the armature begins to spin the vibration shows you it is out of balance. As you say it is where it stops that matters.
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