Magnum Seed | Rayne Demonseed 44 | 78mm Venom Magnum [Serious]

Shoutouts

If I forgot someone or my memory is wrong, please let me know

@whaddys for the Bear trucks

@glyphiks for the awesome enclosure

@KaramQ for the unobtainium deck

@torqueboards for the awesome ESC

@mmaner for the motors

@Boardnamics for the truck hangers

@J0ker for the motor mounts

@Brently for the pulleys

@Reelop19 for the wheels

@thisguyhere for the metr

@Scepterr for the BLE module

@Agressivstreetlamp for the BMS

19 Likes

this section is for me

for my records

Are you b264?

Yes

Are you sure?

I'm sure

:crazy_face: I don’t believe you.

.
## Magnum Seed VESC settings

R: TB6 version V6.65-B1.4  SLAVE id0 nrf51822 {redacted}
L: FOCBOX 1.3 MASTER id1 Metr Pro PIN {redacted}

VESC Tool 3.00.beta with added custom commits
Firmware 5.2.beta.12 with added custom commits
R: VESC Firmware 5.2, Hardware: 60, UUID: {redacted}
L: VESC Firmware 5.2, Hardware: 410, UUID: {redacted}

R: Racerstar 5065 200kV
L: Racerstar 5065 200kV

mode: FOC HFI, FOC unsensored

per ESC:
motor current max 46A
motor current min -45A
battery current max 22A
battery current min -15A
absolute maximum current 150A

battery: 10S6P 30Q 55A 18000mAh

throttle curve
20%
-5%
polynomial
7% deadband RIGHT
8% deadband LEFT

R: 1.055ms, 1.885ms, 1.528ms
L: 1.125ms, 1.955ms, 1.591ms

max wattage 1.5MW
min wattage -1.5MW

voltage cutoff
L: start 36V end 31V
R: start 36V end 31V
BMS hard cutoff: none

Racerstar 5065 200kV LEFT
Cycle Integrator Limit: 130.47
BEMF Coupling: 925.16
I: 42.83A
R: 32.70mΩ
L: 10.04μH
λ: 4.03mWb
HFI samples: 16
HFI Start Voltage: 20.00V
HFI Run Voltage: 4.00V
HFI Max Voltage: 10.00V
Sensorless ERPM HFI: 2000.00
HFI Start Samples: 65
HFI Observer Override Time: 1.0ms

Racerstar 5065 200kV RIGHT
Cycle Integrator Limit: 132.07
BEMF Coupling: 925.29
I: 45.03A
R: 29.60mΩ
L: 10.26μH
λ: 4.26mWb
HFI samples: 16
HFI Start Voltage: 20.00V
HFI Run Voltage: 4.00V
HFI Max Voltage: 10.00V
Sensorless ERPM HFI: 2000.00
HFI Start Samples: 65
HFI Observer Override Time: 1.0ms

Control Mode: Current Hyst Reverse With Brake

max 100000 erpm
min -100000 erpm
erpm limit start 80%
Fault Stop Time 85ms
Duty Cycle Current Limit Start 85%

9.00V lighting circuit

No

this section is for my records

cheers :beers:

12 Likes

The innards before the TB6 was added when one of the VESC-X popped a DRV
the intentional uneven hole spacing is highlighted

The BMS also ate shit and had to be replaced, then the replacement was being a pain in the ass and needed some coercion

An ESC upgrade to @torqueboards TB6 on one side

painting the front light so it’s not shining in my face


The first iteration had two enertion VESC-X aka FOCBOX 1.3


early version had 63mm motors


early version had a bright white light shining in your face at night

@moon pulleys, modified

enclosure mock-up

By the way, a 16S5P (18650 only) fits perfectly in the @glyphiks Demonseed 44 enclosure. I just happened to have a 10S6P laying around. But if not, I’d have put a 16S5P in there. You can see the amounts of extra space on each side of the battery.

I’d considered using VESC6 but they wouldn’t fit. (Which is the same reason why there’s only one TB6 and not two in there)

13 Likes

Love the build and always Brian!

You should slap one of your heatsinks on those tb escs!

2 Likes

Malicious content! Delete it!

Awesome build!

2 Likes

Unfortunately this build predates the InfinitySink, I’ve just been slowly tweaking it since @abusfullofnuns was in town. He saw the very first iteration on 2020 July 27 when it was born and saw its first tarmac…

2 Likes

Finally! Sweet build thread, glad to see it!

2 Likes

I’ve gotten 23.9mi / 38.5km from this

This is the new preferred medium-haul vehicle in my fleet. For short or long trips, I usually grab a different vehicle. For medium trips or if it’s raining or wet, this is my typical grab.

2 Likes

Board looks great man! Great to see this deck built out, it’s unobtanium until the new ones get done and even then… Not the same.

5 Likes

Word on the street is Rayne ghosted again.

I’ll believe that new Demonseed 44 decks exist once I see photos of them LoL

And if so, I’ll need another enclosure right away! :crazy_face:

4 Likes

Yeah. I also heard the same word :expressionless: disappointment level is high.

1 Like

I followed up with them about this yesterday on IG, whoever runs their handle says its still coming “very soon”. So I’m still checking their site everyday.

Also nice build man! makes me wana throw some small wheels on my K. Rimes

2 Likes

just curious, how much was shipping from aus for the enclosure?

AUD 49.80

local currency

1 Like

Price would be x3 the other way around :rofl:
OZPS > USPS

3 Likes

Awww hell yeah @b264, so happy to see those trucks made it onto this badass build! I’m gonna have to try out this butyl tape

1 Like

I like the 52° angle, especially with this long deck. I almost went 50°/50° instead of 52°/44°.

52°/48° I think would be ideal but I don’t know of any Caliber2 compatible 48° baseplates.

1 Like

This build is incredible. I’m using the same motors and attempting to waterproof my enclosure as well. My question for you is how was setting up HFI? My sensors came broken from the factory (kinda knew that they would) and I never got HFI to work without a little bit of flipping when I move the motors by hand.
I hope this isn’t too off-topic but I’d love to model parts of my personal build after what you have going on here. Also, I love how you have the voltmeter going through the enclosure! :joy:

2 Likes

These motors are notorious for getting hot.

HFI is notorious for changing when the motors get hot. This makes it not tuned anymore.

So that means once the motors get hot, the HFI doesn’t work as well anymore. But it does still work. Kinda. I’m actually running FOC/unsensored on one side and FOC/HFI on the other side. I had issues tuning it, but in the end I kept landing on the default values 20/4/10:

Racerstar 5065 200kV LEFT
Cycle Integrator Limit: 130.47
BEMF Coupling: 925.16
I: 42.83A
R: 32.70mΩ
L: 10.04μH
λ: 4.03mWb
HFI samples: 16
HFI Start Voltage: 20.00V
HFI Run Voltage: 4.00V
HFI Max Voltage: 10.00V
Sensorless ERPM HFI: 2000.00
HFI Start Samples: 65
HFI Observer Override Time: 1.0ms

Racerstar 5065 200kV RIGHT
Cycle Integrator Limit: 132.07
BEMF Coupling: 925.29
I: 45.03A
R: 29.60mΩ
L: 10.26μH
λ: 4.26mWb
HFI samples: 16
HFI Start Voltage: 20.00V
HFI Run Voltage: 4.00V
HFI Max Voltage: 10.00V
Sensorless ERPM HFI: 2000.00
HFI Start Samples: 65
HFI Observer Override Time: 1.0ms
1 Like

My biggest advice is don’t have ANY wires exiting the enclosure. Epoxy male (with the pins) MR60 connectors or whatever through the enclosure so there are zero wires going over the lip of the enclosure. If wires must go through, epoxy them through, don’t use cable glands.

2 Likes