[-] Robomekk@lemmy.ca 5 points 2 months ago

The range and charging leave a lot to be desired for many applications, but the bikes themselves seem to be quite nice.

My concern is that finding chargers will be even more difficult than it already is since I don’t think there is any DC charging support. So none of the side-of-the-highway EV charging stations will work, and you’ll specifically have to seek out a level 2 charger next to a coffee shop or something. Just makes any travel longer than the ~130 km range even more hopeless.

If I didn’t already commute everywhere locally by bike, I would definitely consider something like this though.

[-] Robomekk@lemmy.ca 3 points 3 months ago* (last edited 3 months ago)
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[-] Robomekk@lemmy.ca 6 points 3 months ago

Definitely agree on the recycling. Carbon fibre is a whole can of worms there.

[-] Robomekk@lemmy.ca 11 points 3 months ago

In general, agree with your explanation here, but would disagree on the repairability point. Lots of carbon repair shops will repair carbon parts. Often just needs paint sanded off and additional carbon bonded on. Generally doesn’t bend and deform like metal parts, so the cracked bit can just be cut out and reinforced.

On the other hand the aluminum alloys a lot of car parts and bikes are being made of end up quite difficult to weld and re-heat-treat in practice, so no easier than carbon.

[-] Robomekk@lemmy.ca 4 points 4 months ago

Makes sense.

In that case better for efficiency than interior blinds, but still blocking your view out.

Would be handy for an especially hot day or week, but I wouldn’t like to have to keep my windows covered all summer.

[-] Robomekk@lemmy.ca 7 points 4 months ago

Interior blinds are mentioned in the video: basically since they’re behind the glass the energy is still getting in and green-housing a bit. Blinds heating up is heat inside the room. Also block the view out, which awnings don’t.

[-] Robomekk@lemmy.ca 8 points 4 months ago

In the PinkBike video, they mentioned that the full-face helmets didn’t perform as well in at least the rotational impact tests due to their higher mass and moment of angular momentum.

I think it always ends up being a bit of a trade-off, depending on the types of riding and impacts expected. In a low-speed impact to the side of the head a regular bicycle helmet will often do better than a big heavy motorcycle one. Obviously the opposite is true for a motorcycle crash at 80 km/h.

[-] Robomekk@lemmy.ca 5 points 4 months ago

Run energy changes sound like a good idea. IIRC this is already similar to how RS3 does it; Iwonder when it changed there. Though weight feels like it has no impact in RS3, so that’s probably a good way to balance it.

[-] Robomekk@lemmy.ca 20 points 6 months ago

That was one of the things that excited me most from the iFixit video; the (LGA?) pins are a separate part that can be replaced as well. Simplifies the motherboard because then there are just flat pads on there, which means they don't need to include the whole array of fancy pins for a second module if it doesn't ship with one.

Timestamped video link: https://youtu.be/K3zB9EFntmA?t=178

[-] Robomekk@lemmy.ca 5 points 8 months ago

I think this is the correct link for the SpaceX official feed on X/Twitter: https://twitter.com/i/broadcasts/1LyxBnOvzvOxN

Looks like it's scheduled to start at 6:56 CDT now that launch is targeting 7:30 AM CDT.

[-] Robomekk@lemmy.ca 4 points 8 months ago* (last edited 8 months ago)

Looks like some sort of fuelling is underway. Or at least chilling lines in the OLM and tower in preparation for filling.

[-] Robomekk@lemmy.ca 3 points 8 months ago* (last edited 8 months ago)

Countdown and Flight Test Timeline (from SpaceX Site)

Countdown All times approximate Hr/Min/Sec Event

  • 01:15:00 SpaceX Flight Director conducts poll and verifies GO for propellant load
  • 00:53:00 Ship LOX (liquid oxygen) load underway
  • 00:51:00 Ship fuel (liquid methane) load underway
  • 00:42:00 Booster LOX load underway
  • 00:41:00 Booster fuel load underway
  • 00:19:40 Raptor begins engine chill on booster and ship
  • 00:03:30 Booster propellant load complete
  • 00:02:50 Ship propellant load complete
  • 00:00:30 SpaceX flight director verifies GO for launch
  • 00:00:10 Flame deflector activation
  • 00:00:03 Raptor ignition sequence begins
  • 00:00:00 Excitement guaranteed

Flight Test Timeline All times are approximate Hr/Min/Sec Event

  • 00:00:02 Liftoff
  • 00:00:52 Max Q (moment of peak mechanical stress on the rocket)
  • 00:02:42 Booster MECO (most engines cut off)
  • 00:02:44 Hot-staging (Starship Raptor ignition and stage separation)
  • 00:02:55 Booster boostback burn startup
  • 00:03:50 Booster boostback burn shutdown
  • 00:06:36 Booster is transonic
  • 00:06:46 Booster landing burn startup
  • 00:07:04 Booster landing burn shutdown
  • 00:08:35 Starship engine cutoff
  • 00:11:56 Payload door open
  • 00:24:31 Propellant transfer demo
  • 00:28:21 Payload door close
  • 00:40:46 Raptor in-space relight demo
  • 00:49:05 Starship entry
  • 01:02:16 Starship is transonic
  • 01:03:04 Starship is subsonic
  • 01:04:39 An exciting landing!
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Robomekk

joined 1 year ago