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#mechatronics

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Migsar Navarro

A good friend of mine asked me to share about a great opportunity for two full-time phd research positions in #mechatronics in #Mexico City.

If you are into #python #c++, embedded systems, #machinelearning or real-time operating systems, please send me a DM so I can send you the document. There is even the offering of legal assistance to get a visa, and the salary seems competitive to me.

Please share if you know someone that might be interested.

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☮ ♥ ♬ 🧑‍💻

“Rachel Halton still doesn’t know who made the decision, in October 2022, to summarily decommission the $160,000 #JacquardLoom that had been a cornerstone of #RMIT’s renowned #weaving and #textile #design courses for 20 years.

Nearly 3 metres high and weighing more than half a tonne, the loom was an intricate machine of polished wood, steel, compressed air and #mechatronics: simultaneously a grand monument to the golden age of the #TextileIndustry and a modern #tool for weaving strands of #yarn into intricate #fabrics. Halton knew she couldn’t let it end up in landfill.”

“The loom was the only one of its kind in the southern hemisphere, and one of only a handful in the world, bought for the university’s #Brunswick campus in the early 2000s, soon after Halton started teaching there. It “elevated what you could do as an artist”, she says.

Students enrolled just to have access to it. International artists visited especially to weave on it. It became integral to Halton’s creative practice.”

“Watt has “a very special affinity” with the loom. It isn’t just the time she spent working on it at RMIT, or that it sat in her home for months after it was rescued. She’s also been using her coding skills – self-taught – to update its electronics. It’s as though technology is lapping back on itself, given that #Jacquard #PunchCards inspired the basis of #ModernComputing.”

This is why Australia can’t compute.

#RachelHalton / #Tech / #programmIng / #BuildingStuff <theguardian.com/australia-news>

“Nearly 3 metres high and weighing more than half a tonne, the loom was an intricate machine of polished wood, steel, compressed air and #mechatronics: simultaneously a grand monument to the golden age of the Textile Industry and a modern tool for weaving strands of yarn into intricate fabrics” A Jacquard loom. source https://www.theguardian.com/australia-news/2025/may/25/a-new-room-for-a-doomed-loom-and-the-battle-to-save-australias-slowly-dying-crafts
“Nearly 3 metres high and weighing more than half a tonne, the loom was an intricate machine of polished wood, steel, compressed air and #mechatronics: simultaneously a grand monument to the golden age of the Textile Industry and a modern tool for weaving strands of yarn into intricate fabrics” A Jacquard loom. Yellow yarn turned to fabric. source https://www.theguardian.com/australia-news/2025/may/25/a-new-room-for-a-doomed-loom-and-the-battle-to-save-australias-slowly-dying-crafts
“Nearly 3 metres high and weighing more than half a tonne, the loom was an intricate machine of polished wood, steel, compressed air and #mechatronics: simultaneously a grand monument to the golden age of the Textile Industry and a modern tool for weaving strands of yarn into intricate fabrics” A Jacquard loom. Electronic circuit board for the loom to operate. source https://www.theguardian.com/australia-news/2025/may/25/a-new-room-for-a-doomed-loom-and-the-battle-to-save-australias-slowly-dying-crafts
Public
tjhowse

Alrighty, It's not published on pypi yet, but I'm mostly done with pyservo42c. It's a python UART interface to the MKS Servo42C closed-loop stepper. No external dependencies, good test coverage.

These are great little widgets that provide easy step/dir/en and UART control of a stepper motor.

github.com/tjhowse/pyservo42c

All that remains is writing a little wrapper to interface directly to a com port, and then pypi publication.

A photo of a NEMA17 stepper motor clamped to a benchtop. There is a flag of blue tape attached to the stepper shaft. Behind the stepper is a tangle of multicoloured wires.
#python#servo#mks
Public
tjhowse

Long-term reliability testing is going well. The robot has been running continuously for just over 24 hours. I love checking in on it and seeing the cool patterns it's drawn by itself. It randomly chooses between a library of pattern generators, and they overlap in fun ways.

A photo of a circular sand bed filled with swirls and squares drawn by a steel ball.
#robotics#sandsara#mechatronics
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PonyXPS

I am involved in a #university #student #mechatronics project using electric wheelchairs as the mobility power for #gardening #robots. I did some comparisons of the sustained energy that can be harness for work against manual human hand labor. Below is what I got with queries to #ChatGPT:
----------------
The average human body can produce a surprisingly measurable amount of power, though it depends on the type of activity and whether the power is being generated over a short burst (sprinting) or sustained over a longer period (endurance activities).
Human Power Output:

Short Bursts of Power (Sprinting or Weightlifting):
A fit person can generate between 1 to 2.5 horsepower (HP) in short bursts for a few seconds. This is comparable to the power needed for activities like sprinting or lifting heavy weights.
Elite athletes can reach higher values temporarily, generating up to 2.5 HP or more, but this is only sustainable for a few seconds.

Sustained Power Output (Endurance Activities):
For long-duration activities like cycling, running, or rowing, a fit adult can sustain power output at 0.1 to 0.3 HP over an extended period.
For instance:
A typical person cycling or jogging can sustain about 0.1 to 0.15 HP (around 75 to 110 watts) for an hour.
Highly trained endurance athletes can sustain higher levels, around 0.25 to 0.35 HP (about 200 to 260 watts) for extended periods, such as in a marathon or long-distance cycling event.

Horsepower Calculation for Humans:

To express this in horsepower:

1 horsepower (HP) is equal to 746 watts.
If an average person can produce around 100 watts during moderate exercise (like biking or running), this would be approximately:
100 watts746 watts/HP≈0.13 HP
746watts/HP100watts​≈0.13HP
So, the average human can sustain around 0.1 to 0.2 HP during moderate physical exertion.

Comparison: Human Power vs. Electric Wheelchair

Electric Wheelchair Power:Electric wheelchairs generally have motors rated between 0.5 to 1 horsepower.
Human Power: A human, during sustained effort, produces around 0.1 to 0.2 HP, meaning an electric wheelchair typically generates 5 to 10 times more sustained power than an average human.

Key Takeaways:

Short bursts: A human can momentarily produce as much as 1 to 2 HP, similar to the power of an electric wheelchair motor.
Sustained output: Over a longer period, an average human can produce 0.1 to 0.2 HP, while an electric wheelchair typically operates in the 0.5 to 1 HP range.
In terms of sustained work, electric wheelchairs provide a significant advantage in power output over the average human body, which is why they can move people effortlessly over long distances.

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