The reason why I chose this board is because of their planetary motors,
kinda in between hub motors and dd. It has a gear ratio of 4.5:1 with 155mm wheels, I was also told that the motor is 190kv and the cont amp they gave me was ~50amp, but I’ll confirm that out with vesc tool when it gets here.
Battery: I am planning on using a V1 Torqueboard 12s4p 30q pack, I am rewiring it to bypass discharge following @b624 wiring diagram to run it at the sweet 60A output, waiting on amazon to deliver xt90’s so I can make that loop key.
esc: Spintend U-box 74v/200A vesc based esc
This is my first time building a board to this spec, I imagine it would be a pretty simple process wiring everything up when it gets here. Right?
What kind of torque am I expecting with these components? Would this be in competition torque and speed wise to a Kaly.nyc build?
im taking out their chonky metal enclosure, and their 50e cells are significantly heavier too, so I think I am already saving alot of weight with those two, I could only dream of a 12s8p given the dimensions fit! but my wallet would be screaming
Got more info from Richard, he claims that the motor is safe up to 60A now, again will confirm with Vesc Tool. Now I am thinking that this might be a 6374 competitor? we’ll see. I asked him about the lack of info on 6366 outrunners, he told me that they build it in house.
Side note about weight:
He also claimed that their metal enclosure is a whopping 13.3 pounds with their 50e and esc. My components + enclosure so far is weighing in at 8 pounds~. Also I only weigh 135lbs, I think weight is no longer a concern!
I am optimistic that this is going to beat a Kaly2.0 and Raptor 2.1 in torque and speed
For the planetary gear drive to sustain these high speeds, they make you grease the hell out of the gears every 2 months, I would probably do it every month and a half, which is very similar to how I treat my road bikes anyways. As for the gears themselves, the carrier gear has recently been modded to bearings from brass inserts, so at least they got that going (no pun intended)
I have done quite extensive research about what planetary gears are, exactly what their pros and cons are, and really dug into applications in automobiles where they were used. Found a lot of traces dating back to WW2 tanks, and sometimes in helicopters, of course the ones in helicopters are not inline and they have like 10 gears in there. https://www.youtube.com/watch?v=9sPi7DEbyI0 But the one in tanks are the exact same mechanics where the annular gear is fixed and the sun gear is driven.
I was unsatisfied with the numbers I was going to generate, I did a based calculation estimate of wh/km and it was looking like 25wh/km+, meaning that my pack was going to give me a mere 14Miles. Talked to Richard, and he is willing to make me a larger motor from 63mm to 72mm, the wheel size would be 200mm, 170kv instead of 190kv, gearing is still 4.5:1, so now the top speed is increased from ~30mph to 36mph~, the pack I am going to use instead would be a 12s5p 40t. The range I am estimating is now also 20miles+. I will start a new build thread when everything is ordered and confirmed! Now it should be higher in torque and top speed in comparison to a raptor 2.1 and kaly.nyc, I can live with that