These are the same motors Patrick based that write-up comparison on, and he said probably somewhere between 0.35-0.50mm, about double the thickness of what Castle uses.

Are those magnets normal size for a 1/8 motor? It just seems like in the pics the magnets are relatively small and there is lots of "filler" material. Or is that just how a 6-pole is designed?

Hmm. I thought he was comparing to some HK motor.

This motor looks passable for a low budget motor, if you are ok with the whole China cloning issue and lower efficiency. But the rotor really needs to be wrapped - would add a lot to the reliability of the motor IMO.

Those magnets look fairly typical for a 6 pole motor. They could be a bit small, or maybe the magnets are a typical size but mounted on a larger than normal rotor.

They are the same, just rebranded for HK. Or maybe HK is the OEM for the Toro brand? You never know with these clandestine Chinese companies :wink:

They said the factory and told me to contact the seller to forward it to the skyrc (manufacturer). According manufactures repair and transportation costs are borne by the manufacturer. But the salesman told me only that I send, but I shy away from free shipping comments. At least they answered emails within hours.
They are good intentions on their part.

The number one financial gripe of the USA with china is It's stealing of intellectual property.They will copy anything.And China seems to be ok with this.Not very honorable in my opinion.

The 6 pole concept does interest me. 6 poles on the rotor and 9 teeth in the stator field. This could add up to alot more torque.

The rotor not being wrapped is one corner that was cut.

They should have oversized the bearings, look a tad small to me.

They should have also used the thin field laminations.

Also, take a look at the stator field. The space between the teeth for the winding wire is quite small. This limited them on the number of strands they could have used for the number of turns.

In other words, with longer stator teeth, more winding strands would have produced much less resistence.

True but from what I have seen we have a lot of companies that have had their products copied saying it's "illegal" and that they will sue, see their lawyers etc but are any of them actually following through with this internet forum bravado?

It's almost impossible to do in these situations. Say you are losing $100,000 in sales yearly because someone stole your design and cloned it. You can try to go after them but it will take years in court, trips overseas, and $500,000 of legal fees. And even if you do get them to stop the next day some other guy starts cloning your products and you are back at square one. It just isn't feasible.

IMO the best way for reputable companies to fight cloners is offer what they can't: higher quality products and local service and support. Also by staying one step ahead in offering unique and innovative products. Build customer loyalty and you have less to worry about losing them to clones.

Whether you support it or not, cloning/copying will always exist. If you consider that 'imitation is the highest form of flattery' then in many respects it is validation you have the best product...the hard part is developing new products that perpetuate the benchmark

I agree with you about the bearings, laminations, etc, but those are all things that corners were cut on. The wrapping of the stator would help reliability to keep the system running, the rest would just improve efficiency and it is a budget motor after all.

I'd be interested to see how long the rotor lasts. Reminds me of the first Traxxas VXL Motors, they had a habit of cracking rotors too.

You could probably do a carbon or kevlar wrap without too much hassle. You can get the kevlar thread online and then just need some dope or epoxy to affix it to the rotor. As long as you make sure there is enough clearance for the extra thickness of the thread.

And you have to make sure the rotor is still balanced. I imagine even a teeny tiny bit of imbalance could cause "issues" at 30k+ rpm.

Personally, if I were running a business of similar caliber to RCM, I would just refuse to ship to China. It really wouldn't surprise me if they buy stuff just to reverse engineer it over there and make their own. Don't ship to China, and now it's just a bit harder for them to get their hands on such products.

what the hell do you think castle invented brush less motor and ESC they have been around for more than 50 yrs now....and you dont think USA still crap from other places and do the same thing ever heard of the VCR, walkman and DVD playes do your history before you all start ripping into china and other places like it........i love the USA but i don't have a bighead about it products