I doubt it is the urethane. Even on the bench spinning the wheel by hand it stops almost immediately while the normal longboard wheels keep spinning way longer.
Should one avoid pushing on a board with vesc if the power is turned off as well?
I’m curious about this as well. I didn’t know this was an issue, but I’ve also never tried it.
I’ve had a couple single belt drives boards. Easier than a dual, but still a pain to push. I also have a Carvon V2 single and V2.5 single. The V2 has very little resistance and is enjoyable to push. The V2.5 lies somewhere between belts and my V2 hub. Pushing is not bad, but it feels a tad sluggish.
If you plan on running out of power on a regular basis, a belt drive may be the best choice. If you run out of juice, you can pop off the belt and ride like a regular board.
I can say after just getting my own board that pushing with the belt on does create some drag from the motor. I probably wouldn’t want to count on having to push the board but if you do I would probably remove the belt if possible. Also remember that the board will be heavier due to the electronics so that might make it more tiring to push and harder to stop.
Well, we did not come on a final conclusion on this, but the motors can overcharge your caps and then fry your vesc.
Just if I was going to ride it around though, right, not if I rolled it across my living room floor. It makes sense though.
On topic for this thread though, I end up kicking periodically just because I am in Germany and I prefer a kick start anyways. When my programmer arrives I am def going to flash ackmaniacs firmware and take advantage of cruise control. I was surprised that pushing on a one belt setup really didn’t have that much resistance.
I never pushed my longboard with jacob’s hubs for long distance, just do it when I see the police, but pushing the board is just a little harder then a normal longboard. There is a little drag because of the magnets of the motors. When I’m spinning the wheel by hand it turns not as long as a wheel without motor and it stops after about 3 or 4 turns.
3-4? I get like 0.5
Well, maybe there is something else wrong with them? Or it is just a different batch.
These guys are using a helical gear system so you get the advantages of a geared board without the drag from belts
Does it make a difference if you use Foc or BLDC? Same drag when board is on or off? I also cleaned and oiled my bearings a few days ago. And I have 91mm urethane on my hubs, that adds 50g rotating mass per wheel.
hub motors have WAY less drag than any belt setup, and push really easy. BUT they will always have a little more drag than regular skate wheels because of the magnets. I have wheels with LEDs in them that light up from a small magnet in the spacer and even those wheels have a noticeable amount of drag over a standard longboard wheel.
No, drag is drag.
Remember to have the board powered on when pushing the board! otherwise the VESC can get overloaded and get fried. If you simply power on the board when pushing the board, the power generated from the motors can flow through the VESC and into the battery. In that way you also get some juice back in the battery. Not a lot though…
Interesting. I have let my 1st gen Boosted Board get run down so low that it won’t even take a charge. The only way to reverse that was to push the board a 4 or 5 blocks to get a tiny bit of charge on it. Then when I plugged it in, the charge would work. Since the battery was so low, there was no way to turn it on when pushing. I wonder if they have some way of funneling that energy to the battery even with the power off.
That is a goos question! I have heard some people get toed behind a car to get some juice back in the battery in te boosted board. They must have some kind of “one way bypass” directly to the battery.
I am not aure how they do it
Here’s another test of our drive system against a hub motor inboard M1 to give you an idea of the resistance
The owner of the M1 was the one that pushed both boards. We did two tests, in both the Jed won using two different random people.
@Maxid did you find out why your hubs have too much drag?