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Old 01-09-2015, 08:36 PM   #121
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Now THAT is an informative post! Thank you.
I've got 5 bucks that says Howard has a flux capacitor in his attic.
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Old 01-10-2015, 12:50 AM   #122
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Default motor checker pole setting

what number do you set the pole setting to on a g force motor checker.
thank you
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Old 01-10-2015, 05:14 AM   #123
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Now THAT is an informative post! Thank you.
I've got 5 bucks that says Howard has a flux capacitor in his attic.
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Old 01-10-2015, 06:40 PM   #124
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Howard, looking at your phase numbers, something seems off. The phase you measured at 30.5 would seem more likely to match the one the analyzer measured at 31. Did something get mixed up? Maybe even in the analyzer?

-Mike
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Old 01-10-2015, 08:17 PM   #125
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Howard, looking at your phase numbers, something seems off. The phase you measured at 30.5 would seem more likely to match the one the analyzer measured at 31. Did something get mixed up? Maybe even in the analyzer?

-Mike
I noticed that, too, and double-checked the measurements. But it didn't occur to me that the Analyzer might be reporting with the measurements swapped between two sensors. This wouldn't affect its usefulness to me, but it might be interesting to investigate!

One way to do this would be to modify a sensor board by intentionally displacing each sensor, one at a time, and see what happens to the readings. That's going to take someone with younger eyes and fingers than mine. Are there any volunteers out there?

One could also construct a simple time-delay circuit to wire in series with one sensor at a time, and see what happens to the readings. I'd probably have more luck with that-- I could just write a simple delay program to go into one of the "in-line-with-the-sensor-cable" dynamic timing modules I made many years ago.

Oh, great, now there's another project to keep my brain churning when I'm trying to go to sleep...
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Old 01-10-2015, 11:33 PM   #126
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I think you guys are over-thinking it. The real advantage of the motor checker is not in making sure each sensor is degree-perfect, because if they're all pretty close (for instance, after adjusting my sensor board on its mounting screws it now reads A:44 B:46 C:46) its close enough. The real advantage you will get in performance is in finding the "sweet spot" in the timing. For 17.5 motors this is about where it draws 2.0-2.5 amps, and for 13.5 about 4 amps. After setting my motors to this number and finding a gearing where the motors stayed cool, lap times dropped on punch out of corners. That's the advantage of this tool, in my opinion.
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Old 01-11-2015, 06:09 AM   #127
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I think you guys are over-thinking it. The real advantage of the motor checker is not in making sure each sensor is degree-perfect, because if they're all pretty close (for instance, after adjusting my sensor board on its mounting screws it now reads A:44 B:46 C:46) its close enough. The real advantage you will get in performance is in finding the "sweet spot" in the timing. For 17.5 motors this is about where it draws 2.0-2.5 amps, and for 13.5 about 4 amps. After setting my motors to this number and finding a gearing where the motors stayed cool, lap times dropped on punch out of corners. That's the advantage of this tool, in my opinion.
When I stop over-thinking things, you can cremate me.

None of this will limit my use of the Analyzer. It's just another fascinating thing to fiddle with, and subject to pointless testing. That's how I have fun.
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Old 01-11-2015, 07:28 AM   #128
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One way to do this would be to modify a sensor board by intentionally displacing each sensor, one at a time, and see what happens to the readings. That's going to take someone with younger eyes and fingers than mine. Are there any volunteers out there?
It is easy with a bit of Macgyver diy
http://runawaybrainz.blogspot.nl/201...n-adaptor.html

Have tryed once to see what is possible to cheat with a stock setup with zero timing.



No real meter to measure it but calculated a 10 degree was added.
The most funny thing was that the people making the rules and keeping controll could not see what was different
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Old 01-11-2015, 07:47 AM   #129
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Oh, Roelof, you are both talented AND naughty!
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Old 01-11-2015, 08:21 AM   #130
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Oh, Roelof, you are both talented AND naughty!
Oh no, I am all about playing by the rules and searching the limits but you must understand the possible cheats to have controll on the rules and basicly I do think most technical inspections have no idea of what is possible as I have proved. And to be honsest I know that drivers can go far with even soldering SMD like changing FETīs in stock ESCīs.
But isnīt shimming of the sensors not the same as shimming of the rotor

It is strange to see that there are large differences on the track with a stock motor-ESC combo, the more you investigate the more becomes clear, for sure when the fastest guys are telling that they do not need any time consuming technical inspection because that will take away their fun......

But hey, I am just a gas driver and have no knowledge of electrics and so I should not interfere with the electric class. (as some say)
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Old 01-13-2015, 05:55 AM   #131
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Did a little testing and setting up of my Team Powers 17.5 motor :

Before Senor realignment :


After sensor realignment :


Backed off the timing a little and got it spot on :
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Old 01-13-2015, 08:30 AM   #132
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Can you tell me what all did you do to get your sensor realignmed?







Quote:
Originally Posted by Mikkel_R View Post
Did a little testing and setting up of my Team Powers 17.5 motor :
B
Before Senor realignment :


After sensor realignment :


Backed off the timing a little and got it spot on :
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Old 01-13-2015, 06:14 PM   #133
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http://www.eaglemodel.com/jp-net/jp-..._new3/MD2.html

Look what I stumbled upon...

Uses a metal flywheel, and you can log the information onto your computer.

Link to the PDF http://www.eaglemodel.com/instruction/item/3800in.pdf

Coming soon...
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Old 01-13-2015, 06:23 PM   #134
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Originally Posted by EDWARD2003 View Post
http://www.eaglemodel.com/jp-net/jp-..._new3/MD2.html

Look what I stumbled upon...

Uses a metal flywheel, and you can log the information into your computer.

Link to the PDF http://www.eaglemodel.com/instruction/item/3800in.pdf

Coming soon...
If that price is close to being correct it is a very affordable option for many people who like this kind of stuff.
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Old 01-13-2015, 06:32 PM   #135
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Sorry, it is available and runs around 11,000 Yen. Not a bad price for what you get.
I could also fabricate different fly wheels for different loads.

Upon further reading it mentions you need to use a battery*, ESC to run the system. Which I think makes sense, you're getting real readings coming from your battery/ESC/motor with a known load.

*They do offer a power supply if you're running powerful motors. But, using your batteries would help weed out any low performance packs.

Just ordered one and I'll let you know.
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