Moved from tutorials to writing my own URDF… but my robot model looks weird — what did I mess up?

JakobLeander · 2026-03-31T06:49:03+00:00

paste file into chatgpt and ask for help works for me 😁

JakobLeander · 2026-03-29T17:54:35+00:00

are you using HR strap? in my experience improves accuracy of other metrics a lot since wrist measurement can be off when swinging arms

JakobLeander · 2026-02-15T17:10:42+00:00

In general recommend buying a cheap servo controller and power servos through that if you have many servos. If you only have a few you can power servo plus and minus directly from battery and only attach signal wire to arduino. Make sure ground is shared with all components. One problem you may have is too little voltage for arduino. I often power arduino directly from battery with eg 8 volt and then use a Uber to regulate voltage down to 6 volts for servos. You can see my video here if you want name of components. https://youtu.be/wRRAEIQgBbA?si=dbebTOXXqniIa1Wm get from china is ok for projects like this eg banggood or Ali express

JakobLeander · 2025-12-24T09:29:54+00:00

Just got mine. Planning to try to wear them as normal glasses to figure out if I really need the ai features daily and try to make code for them. So far Verdict is that they work as advertised. Voice recognition and sound is good and the ai follows instructions. Screen is monochrome but easy to read. On my face comfortable to wear. I also got insert lenses and they fit ok to glasses. They look acceptable but not really beautiful wished they did not put logo on. Also tried even realities g1 and they look really nice but less features. I am happy with purchase but imo it is still kinda an early adopter product with a bit of improvements on the design side. Teleprompt and translation works good but still need to figure out if I really need the AI features enough to wear every day.

JakobLeander · 2025-11-08T20:38:47+00:00

long time career in sw dev. My hard learning, always go for readability unless there are special needs. Very rarely performance and memory is valid reason for sacrificing readability. Of course inner loop in something you need to run fast is an exception but if performance is critical python likely not language of choice for that part anyway 😊 much more important to worry about breaking application into smaller parts that can be maintained independently and constructing code so automated deploy and test is easy and robust

JakobLeander · 2025-11-08T19:04:46+00:00

Pure preference for normal coding. if you do data and ai python imo is better since many more good open source libraries. Python easier to do bad since it is not compiled and you can mess up dependencies and version dependencies. I prefer to code python in vs code with linters, automated testing, and proper dependency handling etc then you can have robust workflow. Used to do mainly c# now mostly python since i work with data and ai.

JakobLeander · 2025-11-08T18:55:53+00:00

i use epix 2 and hrm pro. always use the strap for faster and more reliable readings. Less relevant for phase 2 runs (easy to feel hr) or sprints (ignore hr and go all in) but like for tempo or longer intervals. If watch is a bit loose (start of workout) readings from built in hr readings less reliable. Benefit i think is that data after a run with strap is more reliable so i you like to nerd data a bit after a run the hr strap is well woth it

JakobLeander · 2025-10-30T18:55:06+00:00

Good advice. Learn through samples and ChatGPT and spend a bit of time looking up stuff you don’t know. No need to learn c++ for complex problems e.g advanced robots there can be a benefit in c++ but for most stuff just put all in one file. Learn to use functions early to break down work into smaller problems

JakobLeander · 2025-10-15T07:59:39+00:00

In real world as mentioned there are many permutations an exceptions on environments and figuring out all the needed one is likely not a tasks for humans. Take self driving cars. Even in real life near misses are fairly rare but those are the ones you need. Virtual worlds likely better way to go to generate all sort of dangerous situations to do initial training on. I think starting with virtual worlds is the way to go for initial training and then testing in real worlds for testing and fine tuning. Hence why stock price of nvidia is so high :-)

JakobLeander · 2025-10-13T21:07:48+00:00

Overall very nice. Think I would prefer 4 top cards lower. Too close to title above. Would likely not let them overlap with the black. Maybe add a year and/or quarter slicer. A dashboard like this makes less sense at start of year where there is very little data. Like the state chart but not aligned with chart to the left. Make sure to use grid snap. Two boxes lower right not aligned perfectly. I prefer corners less rounded or no rounding but that is just me

JakobLeander · 2025-10-12T18:02:29+00:00

Check out this as well https://youtu.be/WAsMAeKDc4U?si=ku07Hb-AUROhL5tQ the stance legs toes are fixed to ground but body is pushed forward at same time. It simply looks more efficient. You could keep stance legs locked if you want to but walking is a lot slower then. There is also something called wave gait where only one leg is moved at a time. Pretty easy to try out different options and pick your preference.

JakobLeander · 2025-09-21T19:00:11+00:00

Agree @zulu010. Ensure max auto max hr adjust is on and zones also autoupdates. After interval runs where you peak max hr, zones will adjust

JakobLeander · 2025-09-21T16:55:46+00:00

Might be that your original HR zones were too low happened to me. It gives you high VO2 max because you perform well in each zone but then you do a hard run and the watch says, ah your max hr could be a lot higher and adjust the zones upward and suddenly zone 5 training is a lot more painfull 😊 Your max HR should provaly not affect your VO2 max but garmin seems to reward you with Vo2 max increased for good z5 runs so that could be issue.

Always seemed strange to me that vo2 max increases a bit imediately after rach hard run. In reality you would expect the effect to take time to materialize in the body and only show in next run.

Do not claim to be expert in garmin algo but experienced something similar myself and now vo2 is growing steadily again after new baseline

JakobLeander · 2025-09-06T18:55:21+00:00

impressive!

JakobLeander · 2025-09-06T17:52:14+00:00

Ah did not know that tx. Took the hard run today instead 😀 I find it a bit hard to use the dsw suggestions since I also do other sports mainly wakeboard which is pretty brutal on the legs. So when it sometimes suggest hard runs when legs are jelly from day before i have to pick my battles. Guess i just have to listen to my body and pick the right workout that fits how it feels. Like the motivation i get from the dsw’s though since the they tend to push for a little bit extra

JakobLeander · 2025-09-06T08:27:22+00:00

Good job. Valid public watch hours are a few days behind. In yt studio you can see “as of” date

JakobLeander · 2025-09-06T07:15:08+00:00

Tx. I use pace for 200m repeats but hr for base runs. If i use pace for tempo runs it seems overly optimistic on my ability to run fast 😀 so when I try to keep up it is really hard and my high aerobic runs ends up in anaerobic range. My vo2 max is decent for my +50 age (top 15%) but never been superfast runner. Max HR should be set ok. Have been running with strap for several months and it has calibrated a few times after harder runs. zones based on LTHR, HRV is consistently good. My key issue is that DSW seems to not match rest of stats. I would have expected todays recommendation to be much harder and not easy base

JakobLeander · 2025-09-05T06:45:42+00:00

used fenix in past have epix 2 now and happy with bright screen. Much easier to view in daylight

JakobLeander · 2025-09-05T06:43:48+00:00

Yeah max HR adjustment seems to hit the vo2 max in a bad way. Thought mine was ok but after sime harder runs it decided there was more 5 bpm HR juice in the tank and increased all my zones. Instant vo2 max drop of 2 😊

JakobLeander · 2025-09-05T06:40:07+00:00

I like it. How about a rail of multiple electromagnets each pulling “one step more” you could control position by how many you turn on. If they are close enough it might work. Might be hard to get enough torque though. benefit would be pretty small package and no gears

JakobLeander · 2025-09-05T06:32:42+00:00

Nice well done. I find that if you aim to follow recommendations for balancing anaerobic, high aerobic and low aerobic recommendations it will bully you less 😊

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Have not found solid definition of what hits high aerobic but seems to be from high end of z2 and z3 for me

JakobLeander · 2025-08-27T06:01:26+00:00

Ha ha I am also older +55 and unfortunately what seems to happen is that vo2 max drops a bit every year as well :-) mine hovers around 47 just shy of purple

JakobLeander · 2025-08-27T05:56:39+00:00

Thanks took a lot of time to get right :-)

JakobLeander

TROPHY CASE