TOPIC:

This app can translate:
play.google.com...late&hl=en

Just take a picture of the text and Google Translate will scan the image and translate.

This is what I got from just taking a picture of the PC screen with your image:

And, luckily there is an English version of the box:



(bad picture, I know)

Dude. Mine come from China. Cheap deal on the bay.

I though the RC community had come to the conclusion that the "23T" line had been proven to be a "fact" that had only come to be "true" due to it being repeated/copied without any original source, and to a large extent, the "proof" that assertion was wrong was an article on BlackHoleSun where someone had dismantled a Sport Tuned motor & counted the windings - and found 27.

I can't find that article now, so have to come to the conclusion that I imagined/dreamt the whole thing ... seems an oddly specific and trivial false memory though

The article is here Jonny:
www.blackholesu...01?start=3

I'll tear a couple of mine apart soon...
Anybody else noticed the alleged difference in length of the Sport Tuned axle? (which could indicate two versions of the Sport Tuned ?)

-Lars

I've moved the Sport Tuned posts to a separate topic, sorry for not doing that earlier.

I've also found this info on timing of an electrical motor:

Exactly what is motor timing?

With the help of this How-To and Big Jim’s Motor Black Book we will soon know!
Timing is the relationship between the centers of the brushes with the center of the motor magnets. We measure motor timing in degrees and it is the angle between the brushes and the centers of the magnets.

When they are aligned, we refer to that as zero degrees of timing. See figure below.

The thing is, I cant see that my Sport Tuned has any timing at all (I've only checked one, yet). The brushes look to be 90 degrees on the magnets. (like the left figure)
How can the Sport Tuned be faster than a normal Silver Can then? (if it has 27 turns, like the Silver Can)

larbut wrote:

I've moved the Sport Tuned posts to a separate topic, sorry for not doing that earlier.
...

IDK if I'm _that_ sorry, the posts were buried before, but now a new thread starts with ...

Jonny wrote:

... I know _badword all_ about motors ...

larbut wrote:

...

...

Looking at my two loose Sport Tuned motors (both bought in the UK in the last few years), both apear to have some amount of timing - it's subtle, but visible: with the motor shaft pointing towards me, with the magnet stop punches on top, looking through the cooling slot, the right hand brush is slightly higher than the left...

Looking at (5) nearly new, Tamiya kit supplied, Chinese made Mabuchi RS540SH motors, the whole endbell is skewed, and the brushes look to be significantly off a hypothetical line with the magnets. Incidentally, the motor wire appears thinner, and to have more turns than that in the Sport Tuned...

Older, Tamiya supplied silvercans are different - a black metal endbell unit (vintage Monster Beetle era?) and a black plastic endbell unit (vintage Wild Willy era) both seem to have the same timing and wire thickness as the modern Sport Tuned ...


My conclusion ... this doesn't really tally with what I thought I knew. I don't really want to dismantle any of these motors as they're either new or still very much serviceable, but without proper measurement it's all guesswork

larbut wrote:

The article is here Jonny:
www.blackholesu...01?start=3

I'll tear a couple of mine apart soon...
Anybody else noticed the alleged difference in length of the Sport Tuned axle? (which could indicate two versions of the Sport Tuned ?)

-Lars

I posted a foto with the axle lengths am sure both sport tuned were on it, yes they excist with two axle lenghts.
Older ones have the long axle end if i remember correctly. (just cant find that picture)

On the f40, is the motor the «old version»? I could take some picts saturday.

All my Sport Tuned are in my models, except for one, but I'm willing to pull them out to check what they look like. I know some of them came from original kits in the "first 100" range.