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Post by coldspaces on Jan 4, 2020 1:14:36 GMT
The one thing I have't ordered yet is the epoxy. I did finally start to make the reservoir I plan to roll the stator through the epoxy in. I am trying to determine if there is anyway I can get by with only one pint of epoxy. The first pic shows one pint of water in it. I tried to simulate the space the stator will take up by laying my hand in there, it raised the water about 5/8 of an inch. I marked it at that height also, that's is the mark you see in this pic. The threaded rod I put in the rotor shows the fluid level is above the windings. Its hard to know for sure how much volume the stator will fill but it looks like I might just get by with one pint. I have done some guess-a-calculations and think if 20% of the stator is in the fluid it might take up 17 cubic inches, there are about 29 in a pint.
Looks like that tray will save you from having a lot of left-over material waste. One thing I would wonder about, with the volume calculation, is the liquid level at the beginning of the dip versus the liquid level after most of the stator has been rolled through. Since the epoxy is somewhat viscous, and it will be depositing on the stator as you roll it through, the level will decrease as the stator is coated. Hopefully it would still be above the windings towards the end of the process.
I am wondering the same thing. These are a thin epoxy so they can soak in pretty easily. I would have to turn it fairly slow so the extra can run off. I might buy two pints and only open one at first. Although the working time is short with this, should be mixing it all at the same time. Somewere in my storage bin is a bare stator from a DR-2. Maybe I can do a test with it and oil to see how high the fluid rises.
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Post by coldspaces on Jan 5, 2020 2:24:16 GMT
I did a test with the bare DR-2 stator and a pint of acetone. Its hard to see in the pic but it didn't raise the level enough, so it looks like it will take at least a quart. Now the question is should I rewind another and epoxy two at once. I did keep the DR-2 stator in a zip lock bag so it hasn't rusted all that much yet.
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Post by turbokinetic on Jan 5, 2020 2:27:12 GMT
I did a test with the bare DR-2 stator and a pint of acetone. Its hard to see in the pic but it didn't raise the level enough, so it looks like it will take at least a quart. Now the question is should I rewind another and epoxy two at once. I did keep the DR-2 stator in a zip lock bag so it hasn't rusted all that much yet. I almost had a heart attack seeing the bare stator there! I hoped you didn't have to re-do the wind again! If you have materials, it would probably be something you could sell in the future if you make up a DR-2 stator.
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Post by coldspaces on Jan 5, 2020 2:48:06 GMT
I did a test with the bare DR-2 stator and a pint of acetone. Its hard to see in the pic but it didn't raise the level enough, so it looks like it will take at least a quart. Now the question is should I rewind another and epoxy two at once. I did keep the DR-2 stator in a zip lock bag so it hasn't rusted all that much yet. I almost had a heart attack seeing the bare stator there! I hoped you didn't have to re-do the wind again! If you have materials, it would probably be something you could sell in the future if you make up a DR-2 stator. LOL, its not the one I just rewound. It's waiting for me to give it a can test. I should still have all the DR-2 it came out of. Might have to lift the dome off and see if things are rusting.
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Post by coldspaces on Jan 5, 2020 3:53:48 GMT
Played a little game of spin the can tonight. Thanks for the tip on the can David!!! youtu.be/q0XmrsBX2c0
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Post by turbokinetic on Jan 5, 2020 4:45:20 GMT
Played a little game of spin the can tonight. Thanks for the tip on the can David!!! youtu.be/q0XmrsBX2c0Very glad to see action!
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Post by ckfan on Jan 5, 2020 15:36:35 GMT
Did the beer can indicate proper direction? That’s so cool to see it rotate like that.
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Post by coldspaces on Jan 5, 2020 19:13:06 GMT
Did the beer can indicate proper direction? That’s so cool to see it rotate like that. Yes CW from the top is correct.
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Post by turbokinetic on Jan 9, 2020 14:23:19 GMT
Did the beer can indicate proper direction? That’s so cool to see it rotate like that. Yes CW from the top in correct. I bet that's a type-o, counterclockwise from top is correct, right? Or incorrect?
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Post by coldspaces on Jan 9, 2020 17:54:55 GMT
Yes CW from the top in correct. I bet that's a type-o, counterclockwise from top is correct, right? Or incorrect? Opps, yes a typo. I corrected it to say CW from the top is correct
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Post by coldspaces on Jan 13, 2020 23:46:47 GMT
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Post by turbokinetic on Jan 14, 2020 3:00:00 GMT
That is amazing to watch! It reminds me of my work in China as well. It would be so monotonous to do the same thing over and over like that...
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Post by coldspaces on Jan 14, 2020 4:20:46 GMT
It would be so monotonous to do the same thing over and over like that... I would fell like a rat in a cage if I worked in a factory.
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Post by elec573 on Jan 14, 2020 4:43:45 GMT
youtu.be/CBFE-Bt7RjY Here’s another one that’s in the us Nice work, it would be great to see how they were made by ge .
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Post by coldspaces on Jan 14, 2020 5:09:08 GMT
youtu.be/CBFE-Bt7RjY Here’s another one that’s in the us Nice work, it would be great to see how they were made by ge . That was a good one!
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