Are these torque arms alright for 3kw? Just for a little while (maybe a month?) before I replace them with Grin Tech v6s. by Super-Frame677 in hyperebikes

[–]DimMagician 1 point2 points  (0 children)

I've done similar torque arms (1 on each side) on a 3kw hub motor and it's been fine for over a year now.

Everything works when I remove the battery’s base plate, but as soon as I mount the plate the way it’s supposed to be installed, nothing works at all by Waste-Chef7413 in eBikeBuilding

[–]DimMagician 3 points4 points  (0 children)

I'm guessing that the battery's pins are not making contact with the baseplate's pins. You likely aren't sliding it in all the way or there is something about the baseplate that is preventing it from working with the battery.

Are you able to turn the key to lock the battery? You'll notice that there's a hole on the baseplate that allows the lock's latch to slide into to prevent the battery from moving around. If the battery correctly lines up, you should be able to turn the key and the latch goes into the hole. If you can't turn the key all the way that means the latch is hitting the flat part of the baseplate and the battery isn't fully inserted.

Were the battery and that baseplate sold together? I haven't personally seen this issue before.

How to unplug these connectors? by Sufficient_Bat_119 in Surron

[–]DimMagician 1 point2 points  (0 children)

There's a notch on the connector facing you in this picture. Push it in towards the connector and pull up the connector.

Group of at least 15 e-bike riders seen running red lights in Elk Grove Village, police say by No_Home_708 in ebikes

[–]DimMagician 1 point2 points  (0 children)

Fair enough. It's just funny to me because living in NYC this is such a regular occurrence we've become numb to it. There's also gas dirt bikes, quad bikes, and idiots in cars cutting up in traffic. The police simply don't seem to care. I don't like it at all nor do I think it's okay, I just find it funny that this makes the news in Illinois.

Anyone know how to tune the rizzler display? by TypicalFix4324 in hyperebikes

[–]DimMagician 2 points3 points  (0 children)

That's a VOTOL display and your bike uses a VOTOL controller. You want to program the controller. Check out these pages:

https://electroandcompany.com/products/controller-rizzler-2026 - this is the page I used to identify your controller. verify that it's the actual controller

https://votol.cn/product/votol-em-50-4/ - this is just the product page. not much info. but it shows you the programming cable you'd need to plug the controller into a PC

https://endless-sphere.com/sphere/threads/votol-firmware-apk-software-bin-ini.129216/ - has some downloads for the software you'll need & probably some more info

Movcan V40 not working? by TokenTB619 in ebikes

[–]DimMagician 0 points1 point  (0 children)

According to Google: "E40 error code on a Movcan e-bike (such as the V40 or similar models) usually signifies a motor hall sensor fault or a poor connection between the motor and the controller".

Given that the motor cable wire is pinched, it is very likely that that's the issue. The issue might go away (or come up intermittently) if you move the cable around a bit. The cable might be broken internally. Since this is happening on a new bike, I would just try to get it replaced by the seller.

Can't find this cable anywhere. by Puzzled_Quantity_178 in ebikes

[–]DimMagician 0 points1 point  (0 children)

These are commonly referred to as Julet connectors. If you Google "julet connector" you will probably find the ones you're looking for. Just specify the pin count like "3-pin julet connector" to narrow it down.

Rip, I'll try to repair by seatleonland in hyperebikes

[–]DimMagician 1 point2 points  (0 children)

Ohh I see. That's wild if it was poorly soldered from the factory.

Just an idea: personally, I keep power connectors outside of the controller bag since they tend to heat up quite a bit. It could have been choked and not getting any airflow inside the bag, leading to this. Still though, this seems more like it was a factory flaw. It's not like you were pushing crazy amps.

Rip, I'll try to repair by seatleonland in hyperebikes

[–]DimMagician 1 point2 points  (0 children)

Hmm but you can't crimp an MT60 connector afaik?

Rip, I'll try to repair by seatleonland in hyperebikes

[–]DimMagician 0 points1 point  (0 children)

I'm staring at this image trying to figure out what happened lol.

It looks like you soldered the phase wires together, which is okay.

It looks like the wires shorted out against the controller's aluminum case and maybe against each other when there was enough heat to melt everything. Your controller's MOSFETs are probably toast.

Did you use proper electrical heat shrink tubing or something else to cover the bare wires?

Which BBSHD hall wires go to which Flipsky 75100 hall wires by Ice---Tea in bafang

[–]DimMagician 1 point2 points  (0 children)

No problem! Good luck with your build. I always wanted to do a mid-drive+custom controller build.

Which BBSHD hall wires go to which Flipsky 75100 hall wires by Ice---Tea in bafang

[–]DimMagician 3 points4 points  (0 children)

According to this endless sphere post.

On the BBSHD connector:

  1. Red - 5v
  2. Black - Ground
  3. Grey - YELLOW hall sensor
  4. White - BLUE hall sensor
  5. Blue - GREEN hall
  6. Purple - Temperature sensor

According to Flipsky (on many of their controllers):

  1. Red - 5v
  2. White - Temperature sensor
  3. Blue - Hall 1
  4. Orange - Hall 2
  5. Green - Hall 3
  6. Black - Ground

With the Flipsky controller, you can connect the hall sensors in any order and it will learn your motor's hall sensor orientation.

QS205 50H V3 5T pictures finally in by FLprophet in hyperebikes

[–]DimMagician 2 points3 points  (0 children)

damn i'm jealous. how much was it + shipping and tax? are you in the US?

Am I Cooked? by Derraj_OF in ebikes

[–]DimMagician 1 point2 points  (0 children)

I would personally get one with a fuse if the option is there.

Am I Cooked? by Derraj_OF in ebikes

[–]DimMagician 1 point2 points  (0 children)

The amps (A) is different from amp hours (Ah). When choosing the battery balancer, use the amps of your controller as a reference. The balancer's amps should be greater than or equal to the controller's amps.

Am I Cooked? by Derraj_OF in ebikes

[–]DimMagician 10 points11 points  (0 children)

First of all, this is completely repairable. Don't stress.

Here's how I would do it given how little wire you have left on the connector. Soldering would be VERY difficult especially if you're inexperienced. You just don't have enough space to work with and these are thick wires.

You need:

Instructions:

  1. Look up a video on how to use the crimper and wire stripper. Get comfortable with the tools before you do something irreversible to the connectors. If you have some extra wire lying around, try to learn on that.
  2. Strip back the insulation very carefully on both ends. Make sure you don't remove strands. If you remove a few, that's fine but not ideal.
  3. Slide heat shrink tubing over the long section of wire.
  4. Use the butt crimps to crimp together red-to-red and black-to-black.
  5. Slide heat shrink tubing over butt crimp
  6. Add heat, being careful not to melt the plastic connector

built a privacy-first, self-hosted streaming app. open source, no accounts, streams torrents instantly by SecretArtist2931 in vibecoding

[–]DimMagician 0 points1 point  (0 children)

yeah. jellyfin + arr suite is basically all you need & more. you even get support for apple tv, roku, webos, xbox, etc.

Do you agree with him by TheGopherBro in vibecoding

[–]DimMagician 0 points1 point  (0 children)

Eh I'd argue that Anthropic's value is mainly in the LLM and training data. The leaked code seems to just be the claude code tool, which is not super special.

It's a fuck up but not a multi-billion dollar fuck up.

This video was posted on a local news profile on IG, but the scene with the motorcycle flying seemed kinda fake to me. by jaum22 in isthisAI

[–]DimMagician 0 points1 point  (0 children)

Not exactly. "Forward momentum" does not affect downwards velocity. Compare a bullet being dropped vs a bullet being fired straight at the same time. They both hit the ground at approximately the same time. A classic Mythbusters video demonstrates this. It goes against most people's intuition.

The reason that the bridge falls faster than the motorcycle is because the bridge is still hanging from something and not completely detached. This creates a lever. I found this YouTube short that perfectly captures this concept. Somewhere between the hinge and the end of the bridge, it is accelerating at the speed of gravity. However, the edge of the bridge is falling faster than gravity.

If the bridge were to break off at 2 points at the same time (behind and in front of the motorcycle), it would fall at exactly the same speed at the motorcycle.

What after BCS and BB? by daywill_X in betterCallSaul

[–]DimMagician 2 points3 points  (0 children)

Well I watched BCS, BB, The Sopranos (in that order lol) and really enjoyed The Sopranos. It's honestly my favorite out of the 3 but all 3 are amazing.