New Hummie Hubs!

Thats exciting news! What KV are these motors? 100ish?

How is the quality of the urethane on the hubs?

Wake up you two, we need to see this!!! @Hummie @evoheyax

3 Likes

Exactly …and please do some nice hill climbing !! :slight_smile:

  1. Filbert between Leavenworth and Hyde (31.5% grade)
  2. 22nd between Church and Vicksburg (31.5% grade)
  3. Jones between Union and Filbert (29% grade)
  4. Duboce between Buena Vista and Alpine (27.9% grade)
  5. Jones between Green and Union (26% grade)
  6. Webster between Vallejo and Broadway (26% grade)
  7. Duboce between Alpine and Divisadero (25% grade)
  8. Jones between Pine and California (24.8 grade)
  9. Fillmore between Vallejo and Broadway (24% grade)

We will climb some stuff with them.

@BigBoyToys These in particular are about 82 kv on the backs, and the fronts are about 85 kv. Not sure the top speed (didn’t measure, was more concerned about testing acceleration.

Despite not having put sensors in them yet, they can start from a stand still on a slight hill still. And when I mean start, I don’t mean struggle, I mean start from a standstill without sensors with so much power. We’re debating at this point if the sensors are worth the extra complication and more breakable parts. At the end of the day, simpler sometimes is better.

And the sensors would add just a tad bit (like saying you’d take 3.1 seconds for a 0-20 acceleration vs 3.4). Maybe, you’d get 5-10% better acceleration with sensors. But the motors are so powerful as it is, that most won’t notice or feel the need (even me, who loves sensors, is content without them here). Nothing like the old motors. Even if you do push too, it’s the ever so slightest push. The old ones needed a big push or two. These, even if going 2 rpm, will always find their position and accelerate well without sensors.

Video and photos coming soon… (like, very soon)…

5 Likes

Let’s start it off with some photos of the complete. Now outfitted with a direct fet vedder switch, thanks to @goldenHusky. Also, using bms now with 12s 8ah zippy lipo. One thing to note: you’ll notice theres only 3 screws holging the plate on instead of 6. 3 is the lowest you should go, but 6 is strongly recommend, and is how many they will be shipped with. We were just rushing to test already :stuck_out_tongue:

8 Likes

Working on video right now… Might take an hour or so before it shows on youtube.

luke’s motors were an early winding before we knew what was possible. these here are 16awg and a hundred grams heavier with lower resistance and seem the best potential. probably will hit 34mph while his we figured were doing max 27mph. 7 turn terminated …the better wye way so as no stray voltages between phases as with delta. the rubber rocks and would love to compare it’s rebound to what’s out there if only could get a bouncy ball’s worth to do the simple comparison. the sound and feel of them when flicked or dropped screams rebound and I really like how the core is working. We haven’t put many miles on them at all yet but I know from trying to destroy my dud pours that theyre much better than the stuff before. a bit of the mold line on them with my bad mold that needs to get worn down in the center with these (not in the future design coming) but other than that they rode great.
i’ll get these winds running today!

5 Likes

A little example of what these guys can do. Hard to get video that shows the acceleration accurately though. I have no doubt that in 4wd, these are far more power than the raptor 2, which has a dual drive. With better copper fill, they will only get better. And if you look at my pictures, you’ll see a lot of space is still left.

15 Likes

Please tell me the clear thane is an option! Looks sick!!

The thane is really much clearer than looks here and really the mold has been the limit. It’s almost water clear. I’m totally in agreement on the clear and am getting a super smooth mold made for the new design

3 Likes

Personally I’d prefer if the hubs matched the front wheels…

I want this too. It will be a tricky thing to do, since you add the tiniest drop of coloring, and it changes color soooo much. But for those who want matching, this is the goal.

1 Like

Any new test info? more video?

I have no doubt you have a better product than loopy… in fact if you do not i’ll slash my wrists to the god of hub motors!

1 Like

Real talk, I can’t deny that his motors are larger, plain and simple. That will mean with 2 motors, he will likely win the race. He chose to go 2 mm short than us on stator length, but somewheres between 5-8mm wider in stator diameter. This means he has more space for copper, which means more torque, plain and simple.

However, like I said in the other thread, we all have our unique selling points. For us, you can request custom kv’s if you want a particular top speed, which no one else is offering. We believe we have the best mechanical design, and are the only one’s using a 12mm axle. We’re also cheaper than our competition. The carvons are using a very similar sized stator to us, so I think those will be the best for us to race in a 2wd setup.

We also have the most thane for any in wheel hub motor. Over 20mm on all sides of the can with an 83mm wheel and even more when we do the 90mm wheels. Not much less than a normal 83mm wheel as is.

The carvons are outside of the wheel, so you have a full wheel, but theres downsides to this approach too.

With the raptor 2 motors, your limited to only 11mm of thane on most of the wheel. But they replace the thane with more motor, so… It’s all about trade offs. I believe the raptor 2 motors are more than what most need in terms of power. Heck, I think these new motors are more than most will need in terms of power. It’s just, we needed something large enough to not overheat, lol. Since he wanted to seal the motor, he had to make the motor bigger to have the same cooling effect as our motors, which are not sealed. Again, trade offs, that end customers need to decide on.

I think who has the best is too subjective at this point. They are all good, you can’t go wrong with any of these three options. But we will always strive to be the best. We’re not done designing even more power motors either. For those who want even more power, we will bring back the 3x long motors. It will happen in due time, once we get the first 100 batch hopefully sometime early next month. We’ll use the little profits we are making to get the 3x long design modified, and into production :slight_smile:

2 Likes

More testing is coming. I am working with a friend who has a degree in cinematography (also a good skate buddy that i’ve been filming parts with for the past 8 years since I was a freshman in high school, lol) to make some good quality videos (not just shitty cell phone videos).

This is on this list on things to do… Maybe next weekend. I have a lot of exams and projects due this week.

2 Likes

Wow. That is all up hill. How did the battery last? Temps?

Haven’t done it yet, but will be the first REAL hub motor test. Hoping next weekend.

1 Like

I did do a test today of hill climbing a 20% grade hill. Speeds were around 25 mph still, and did the test for around 15 minutes straight, up and down, up and down. Probably did 20 laps, and max temp was 151 F in one and 130 ish F in the rest. Not bad at all.

Cores are working well, no deformation so far, and ride quality is far better than the small motors wheels.

1 Like