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Originally posted by altrez
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Matt
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I would think that would depend on the PWM you are using. If it actually bucking thats not a problem. If its just cutting up your current with a timed on and off that is a problem. You can look up Volt-Second principles. Its 101 engineering for sure. Lots of things fall under Volt-Seconds principle its really useful concept to know.
Matt -
Hello Everyone,
Here are the final results of my tests.
Here is the basic battery test using only the motor, a 12v 7.2ah battery and a PWM:
And here is the final tests for the one battery circuit's 12v 7.2 ah battery:
I hope this test was helpful to some of you. It ran for 3 hours and I let it rest for almost 20 hours before taking measurements.
-AltrezComment
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Cutting up current
Doesn't the Matt modification to the motor cut up the current with a timed on and off?Originally posted by Matthew Jones View PostComment
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93% duty cycle. No matter the speed.Comment
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45 people watching. Watch now, you know good info is coming, Its always near when the man sends his minions in to disturb the thing. You see bisexual is hard at trying to implant the doubt. He's about to loose his bonus, but the fact is compared to the disturbance of Bromikey this bisexual clown is a flat out rookie.
Bisexual go over to BroMikeys desk and get some pointers you need the help of a senior disturber.
In the end all you are going to be out of a job....
Tomorrow I'll show you the GEN frame, then I gotta wind and tune the coils. That is as long as the power don't go out. Lightning everywhere tonight.
Stay Tuned!!!!
MattComment
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Lol
Matt,
Once you show them they won't have any more excuses for not building this except $$. What will they have to whine about?
But don't worry. At least one of them will claim that it's a "fluff charge" on the battery and it has REALLY lost voltage but we don't know how to measure it. Or you are using faulty meters or something.
They won't be able to get it through their heads that it is for real. I know all the whiner tricks. I have been observing them for ten years.“Advances are made by answering questions. Discoveries are made by questioning answers.”
—Bernhard Haisch, AstrophysicistComment
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Hello everyone,
I am going to start ordering supplies for the motor modification and was wondering of those of you who have built it could you please post a parts list. My goal is to make absolutely sure I am buying all of the recommend stuff.
It would also be nice to get as much as I can off Amazon so it is a one stop shop to get the parts to build this motor.
The plan is to build and test the motor and post all the results. When I have it done I will build another one and send it to one of the people in this group to test as well.
Getting excited!!
-AltrezComment
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Youtube link
Hey Altrez,Originally posted by altrez View PostHello everyone,
I am going to start ordering supplies for the motor modification and was wondering of those of you who have built it could you please post a parts list. My goal is to make absolutely sure I am buying all of the recommend stuff.
It would also be nice to get as much as I can off Amazon so it is a one stop shop to get the parts to build this motor.
The plan is to build and test the motor and post all the results. When I have it done I will build another one and send it to one of the people in this group to test as well.
Getting excited!!
-Altrez
Try this YouTube link:
https://m.youtube.com/channel/UCGVcH_sVjarbs-vvfSeUQ8w
I'm sure Matthew will give more info as he sees you want to build this modification of his motor. But these videos got me started.
wantomakeComment
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Thank you wanttomake. I will be ordering parts next week and posting everything I do to help everyone move forward.Originally posted by wantomake View Post
-AltrezComment
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https://www.youtube.com/playlist?lis...7WsknDG4439vV3
Thats the instructions in case you didn't have them. You just need wire. I wanna say 600ft of 24 awg will do the motor. 3 strands per winding. Can't remember exactly how much it takes. Some of the motors will take a skate board bearing.
https://www.amazon.com/Ceramic-Beari...563J3TZH9KE6Y2
If you have set of calipers you can measure the inside spots for bearings see if the ceramic will fit, Or you can just buy a set of regular bearings. The stock bearing aren't great.
You might want to be able to tune past the screws so some thing to clamps the motor together from end to end. I didn't do this except to test and then I built a new brush plate that mounted on the back with the adjustment prebuilt into it, but I gotta CNC to make those things, not so easy without it.
I can't think of anything else.
**Added this.. You may get extra wire in case your first attempt fails. Its not an uncommon thing. Better to have wire and not need it .....
MattLast edited by Matthew Jones; 07-29-2018, 12:18 PM.Comment
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Will this wire work?Originally posted by Matthew Jones View Post
https://smile.amazon.com/Remington-I...wg+magnet+wire
-AltrezComment
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https://www.amazon.com/Remington-Ind...ZB9AB1NMN0EG5V
This is 200 Deg C wire. This will hold up better under a work load.
MattComment
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DC motor control links
Hi,Originally posted by altrez View Post
It's been years since I've looked. Back then there were numerous tutorials, white papers, etc which were very good. Not so today. This one isn't too bad.
https://www.google.com/url?sa=t&sour...xVLfcnptIj07JJ
This one is a bit more advanced but looks good. Haven't read it yet. Maybe tonight. https://www.google.com/url?sa=t&sour...E6sCoXWgPm-i63
Regards,
biComment
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Just a little update, ya'll can see where I am going with this.
https://youtu.be/ghMriKx8tQY
I'll post incrementally as I get little things on it together.
Lots going on this week but I am going to get it up running by next weekend.
Cheers
MattComment
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