Jordan Ford
484 posts

Jordan Ford
@jrdnfrd
🤖 Robotics Entrepreneur @RubiconRobotics 💻 Automating everything but the fun stuff 🗺 Perception | Localization | Mapping | Controls 🎓 PhD @CMU_Robotics
Pittsburgh PA Katılım Ocak 2015
402 Takip Edilen126 Takipçiler
Jordan Ford retweetledi

@_baldtires @nhfoley @Mammoth My buddy printed a battleship gun barrel in giant segments on the orangestorm giga. He seems pretty happy with it.

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Just going to be honest here, if you join our company it’s exclusively type 2 fun we have here.
Hard problems it’s a slog 😂
Brie Wolfson@zebriez
Favorite thing about @tryramp’s marketing You can tell the team is having (type 1) fun
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@andrewmccalip Sometimes at night I just drink coffee until the next morning...
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Sometimes at night I just think about getting to drink coffee the next morning
Jackson Dahl@jacksondahl
Sometimes at night I just think about getting to drink coffee the next morning
Marina del Rey, CA 🇺🇸 English

@mattressguy_ Question for the expert: does it hurt the mattress if I use a ratchet strap to roll it into a taco shape so I can cram it into my car?
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@ChShersh It’s just an advance form of aggressive garbage collection!
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@robin7331 I think you might’ve accidentally bought a spool of WETG
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@pmbarrett314 I am vexed. This makes me ill. Where will I study now?
I’m a vexed-ill-ologist.
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@ptrschmdtnlsn @boxcardavid I think a lot of ITAR CNC machines have sensitive tilt detectors that will lockout the machine if you try to move it. A company rep has to come out to your site to reset it.
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@boxcardavid You joke, but maybe it'll actually be nice to be able to be like "Huh, board #14 stopped working 16 seconds after we detected an unusually large acceleration".
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This false nomenclature of “researcher” and “engineer”, which is a thinly-masked way of describing a two-tier engineering system, is being deleted from @xAI today.
There are only engineers.
Researcher is a relic term from academia.
Aditya Gupta@adityagupta
we at @xai are looking for researchers and engineers for scaling up our rl environments with user feedback and preference in the loop. apply here (or drop me a dm): x.com/i/jobs/1948556…
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@TweetsOfSumit It's the fraction of the value you've created that you've also managed to capture.
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@_baldtires How did the 3d prints fare? How many parts do you think they would last before you have to replace them?
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@_baldtires @protocybernetic I think he’s asking what the formed sheet metal parts will be used for. The output from this die
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mcmaster parts coming tomorrow according to UPS, so hopefully i can share some results soon. blank holder and male die parts finished this morning. both are over 500g. printed the blank holder face down on a smoothed plate to get the best ironing effect possible

Peter Holderith@_baldtires
designed a proper male die with a blank holder, got some hardware from McMaster coming Monday to test it out. hopefully that will get rid of the wrinkles in the draw
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@observie This is a common architectural choice in robot birds: it’s called TwoCAN
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Why two CAN networks?
I get this question a lot, so let me defend the decision and see if you agree.
A single CAN network can easily support all 12 motors. To confirm, I profiled a single CAN network running 12 motors, and the results show it can be easily supported:
x.com/observie/statu…
x.com/observie/statu…
But:
1. Assigning a separate CAN network to two legs minimizes branching and parallel stubs, which can introduce signal reflections, noise, or impedance mismatches in a single bus setup.
2. Less branching, wiring, and parallel stubs mean cleaner signals and better PHY, potentially fewer errors/retries.
3. The Jetson has two CAN controllers, so introducing a second network is relatively cheap.
4. Splitting messaging load across two buses reduces contention and leaves headroom for expansions, like sensors and actuators (arms? head?).
5. Software cost is minimal.
David Bar@observie
12 Motors and 2 CAN networks wired
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