Archived: the OG noob question thread! 😀

[BillGordon]

There’s a bunch of guys here that know this stuff, but I’ll just call on a few:

@Lee_Wright
@Andy87
@rich

Any chance you guys can weigh in here? Thanks.

[taz]

The loop key(s) on the monster box have xt90s connectors so you don’t need an anti spark.
Trampa has a few diagrams on their website showing various types of connections

Pictures showing what you currently have would help.

Have you considered going with LiIons? You can get a lot more range for the same weight/volume.

Where are you based?

[xsynatic]

vesc_tool_free_windows (3).zip (27.3 MB)

[Coreywolf]

Anyone know if I can use the vx2 pro v4 on v6 hardware? Can I make a converter plug? Or change the plug?

[Halbj613]

so i have a set of carvons v4
and i am having a slight issue with one motor

it makes a slight noise and has slight resistance when turning by hand
then at speed (15mph around)
it goes krrrrrrrr and acts weird

i have confirmed (pretty certain) that it is the stator of that motor
what is the best way to find out what it is and how can i fix

does anyone know what motors they used on the v4 and is it replacable
thank you very much

[b264]

The Carvon V4 SpeedDrive comes in two flavors, Carvon V4 SD R and Carvon V4 SD XL.

Which flavor is it?

Also try the hand test

How to hand-test a BLDC motor [SRO]

Sometimes if you’re buying used, or troubleshooting, and need a quick way to see if anything might be wrong, you can test a BLDC motor with only your hands. It’s not the most accurate test in the world, but catches most problems. [f5c1e17e62e9f244432bf763be93746978c88931%20(copy)] Ensure motor phase wires are not connected to an ESC or anything else. Verify the motor spins without grinding or rubbing. Put a tad of sideways stress on the shaft and push it and pull it (while turning) to veri…

[Halbj613]

speed drive dont think xl
but how would i know?

thanks

will look at the hand test

[Halbj613]

so @b264 i tested the phases and all seem good

a-b was mild strong
b-c was mild strong
a-c was a little weaker but did still brake
a-b-c was very strong

also i noticed on the broken motor it seems that the magnetic field is slightly weaker and the can is easier to take on and off compared to the other side

what is the best way to go from here

i will upload a video of the sound soon

[RyuX]

Just interested…

I have a 12S6P Pack with Samsung 30Q.
I have my VESC Set to max curent battery 65A and max motor 85A.
I run two Trampa VESC Six with BioBoards 6374 Motors.

What are your settings if you run a similar configuration ?
I am not sure if I am already maxxed out - I have loads of power and the board feels great… just need some comparison

Also I am still not 100% sure if the configured Current is now for Each VESC or if CAN Connected VESCs will use only one value ?

[Halbj613]

Here is the noise it makes on the bench
It becomes a much a louder weird noise when I actually ride

The little krrr you hear every so often in the video is amplified when riding

Thanks if anyone can help

Really want to fix this motor

Any suggestions on what I can do

Video with wheel on

[xsynatic]

vesc tool is each, unity combined. So you have 2x 65A battery.

[Halbj613]

Please someone help

Really wanna get these working

Carvons v4 need help fixing

So need a bit of help Have these carvon v4 sd and one motor makes a weird noise This noise gets amplified when riding above like 15mph It is some sort of krrrrr noise which is really annoying and loud The resistance is reasonably high in the motor 95mohms compared to 35 on the other What is the best way to work out the issue and to solve it @kook I know you fixed some carvons Did you ever have this issue Thanks a lot everyone Please help if possible

[pdscunha]

I have one old Street Wing motor which wasn’t running well. It was “blocking” in a small part of the rotation movement, when turning it by hand. Opened it, noticed shaft was loose, so tried to attach it again to the rotor. Put it back together and now it’s even worse, really need to force it when turning it by hand for more than half of the rotation. In the bottom of the stator, there are a few marks which seem to be the rotor magnets rubbing against it, since the magnets also have those marks.

The rotor is indeed a bit angled but I never thought it would have a huge impact. Should I try to mount the shaft again? Any tips?

[rich]

@RyuX

What are your settings if you run a similar configuration ?
I am not sure if I am already maxxed out

Almost same setup, 12s6p VTC6, vesc 6, 6374 Maytech’s 220kv.
I run them with 100A motor and 55A battery each vesc. The difference between 80 and 100 motor amps is epic. But in summer I have to decrease motor amps to 80 or 70A otherwise the run too hot.

@RyuX

Also I am still not 100% sure if the configured Current is now for Each VESC

For each vesc so you have to change current settings on both.

[Halbj613]

So I have managed to break both my USB ports on my makerx
How do you solder them
What pins need soldering down

Thanks

[MysticalDork]

@Halbj613

How do you solder them

Carefully.

@Halbj613

What pins need soldering down

All of them.

[PixelatedPolyeurthan]

@MysticalDork

All of them.

How NOT to Solder Electronics (Comedy) from Stock Images | Ham Radio Humor

[MysticalDork]

Cursed images and video.

[xsynatic]

So after our conversation 2 days ago i just came back from another test ride and it seems i just didn’t fully commit the last time. Now i did, sagged about 7-8v and killed a belt on the way. The belt was done for anyway, he had some tears but held up for the last 250-300km or so.

Here is the log:

(obligatory @fessyfoo tag)

EDIT : i bumped the batt amps to 65 so with the 32.6 i maxed that out. Motors still had 25ish amps left until it would’ve hit the bumped value of 80Amps.

I always forget that its 50A batt per side so i effectively could pull 80Amls (10s4p 30q) but i wouldn’t know where or how

I habe to say that pulling through uphills wasn’t pleasant. I’m not used to give my vescs that much power/stress. It also was pretty jolty (caused by the 2 shunt design?)

[Halbj613]

As in you have like the large pin at the back
Then 2 pins going in and then like 5 pins which are flat

How you supposed to solder them all?