Hey I'm wondering if I can get some 'community' input here on what you think would be the best naming scheme for the Nine Continent and other hub motors. At first, we went with similar approach as Crystalyte, magnet width followed # of turns, which is where the 2800 series came from. Unfortunately though, there was a bit of a measurement error, and the caliper read 27.5mm which we rounded up to 28mm. However, the actual magnet width is indeed exactly 27mm, so the series should be called the 2706, 2707 etc.
The rational for including the magnet width in the name, is that more or less powerful motors may be available based on wider or narrower lamination stacks, so we might have a lighter 24XX series like the golden hubs, or a bigger 32XX for more power. But, that hasn't happened yet. NC DOES have a more powerful motor with a large 273mm diameter, and it's also got 27mm magnets. Too many 27's
In the Nine Continent manufacturer name, they go with the hub diameter followed by the winding. So FH205 or RH205 for front / rear 205mm diameter motors, respectively. But then for the windings, they list both the # of turns and the parallel strand count, which is uber confusing. How do you ever get straight which is a 9x7 winding or a 7x9 winding?
Most other motor manufacturers don't even list the winding details, instead they'll have a voltage and power stamped on the side (like 36V 500W), sometimes an RPM figure too, but as we all know these are pretty meaningless values in and of themselves.
So I'm trying to think, what would you LIKE to see in a motor name? Having the turn count is nice and discrete, and easily separates different wound motors that are otherwise identical. But the 06 in a 406 motor doesn't directly relate to the 06 in a 5306, nor the 06 in a 2806. What if instead we went with the actual KV value in rpm/V? NC-8.9, NC-10.3, NC-12.4 could be the 2807, 2806, and 2805 hubs respectively. Do you like that more, or should we just rename the series to 2707, 2706, 2705 etc. and then when it comes to the larger 273mm diameter motors, we'll just have to deal with the confusion of them also having 27mm magnets in some other way?
We're getting our next batch of motors with a custom side plate that can have the motor name and specifications incorporated in the graphics, so there is an opportunity here to choose something that will stick which we can all be happy with. Curious to hear what your opinions are on the matter.
Justin
The rational for including the magnet width in the name, is that more or less powerful motors may be available based on wider or narrower lamination stacks, so we might have a lighter 24XX series like the golden hubs, or a bigger 32XX for more power. But, that hasn't happened yet. NC DOES have a more powerful motor with a large 273mm diameter, and it's also got 27mm magnets. Too many 27's
In the Nine Continent manufacturer name, they go with the hub diameter followed by the winding. So FH205 or RH205 for front / rear 205mm diameter motors, respectively. But then for the windings, they list both the # of turns and the parallel strand count, which is uber confusing. How do you ever get straight which is a 9x7 winding or a 7x9 winding?
Most other motor manufacturers don't even list the winding details, instead they'll have a voltage and power stamped on the side (like 36V 500W), sometimes an RPM figure too, but as we all know these are pretty meaningless values in and of themselves.
So I'm trying to think, what would you LIKE to see in a motor name? Having the turn count is nice and discrete, and easily separates different wound motors that are otherwise identical. But the 06 in a 406 motor doesn't directly relate to the 06 in a 5306, nor the 06 in a 2806. What if instead we went with the actual KV value in rpm/V? NC-8.9, NC-10.3, NC-12.4 could be the 2807, 2806, and 2805 hubs respectively. Do you like that more, or should we just rename the series to 2707, 2706, 2705 etc. and then when it comes to the larger 273mm diameter motors, we'll just have to deal with the confusion of them also having 27mm magnets in some other way?
We're getting our next batch of motors with a custom side plate that can have the motor name and specifications incorporated in the graphics, so there is an opportunity here to choose something that will stick which we can all be happy with. Curious to hear what your opinions are on the matter.
Justin