3d modelling for everyone!

Unboxing the Structure Sensor


This week, thanks to our forward thinking student council, we received a Structure 3d scanner.  Unboxing created a lot of curiosity.  In about five minutes we had the sensor mounted on the front of our ipad mini and we were off to the races.

3d modelling is a tricky business.  It typically takes a fairly comprehensive knowledge of software to get yourself a decent 3d model.  Thanks to the Structure sensor, anyone with an ipad (grade 3 and up?) could quickly and easily create a 3d model of pretty much anything they can walk around.

It takes a bit of practice, but once you see how the laser sensor paints the object (it looks like it’s covering it with clay on the ipad display), you get the hang of it and you’re producing remarkably accurate 3d models.

In about 15 minutes I had it figured out and took a detailed model of my partially dismantled Kawasaki Concours in the garage.

Our principal!

The files are obj format – an open source format that a lot of software can easily read.  I’ve found that sketchfab.com is a handy way to share the models and offers a fair bit of customization in how the models present as well.

At school we’ve had a good time making busts, while at home I’ve tried modelling complex mechanical items.

I’ve been using Obj Viewer to see the 3d models on the desktop (they’re all saved as model.obj, so very quickly you’ll find yourself buried in model.obj files not knowing which one is which).  I quickly got into the habit of renaming them as I opened them.

As an avenue into more complex 3d modelling software (like Blender, which imports obj files with no problems), the Structure scanner is a great starting point.  You can quickly create 3d models and then clean them up or embellish them in something like Blender (also an open source, astonishingly good piece of freeware).

You can view your model once you’ve painted it on the ipad screen (the pictures here are screen captures from the ipad).  If you like the model you can email the obj file.  The largest (an attempt at scanning our computer lab) was about 4 megabytes.  A smaller object, like a head, is usually under two.


Being able to quickly and easily model 3d objects offers all sorts of interesting educational opportunities.  Because you’re accurately measuring volume, the immediate uses as a measuring tool in mathematics and the sciences are obvious.  Using this scanner you could quickly and accurately measure the growth by volume of a very complex shape like a plant.  If you’re creating clothing, you would be able to scan your prototype and then see what it looks like in a wide variety of textures from all angles.  As a prototyping and measurement tool, the Structure Scanner takes some beating.

Our focus is on creating 3d models for our software engineering project.  3d models are often too perfect, looking rather plastic.  The Structure sensor is going to allow us to model clothing and other complex textures and organic shapes much more realistically and quickly.

At less than the price of a game console, this little sensor opens up what used to be the inaccessible world of 3d modelling to everyone.

Cultivating Genius & the Zen Teacher


A recent issue of WIRED has an article on student directed learning called: The Next Steve Jobs, which asks some hard questions about teaching and learning during an information revolution.

The idea of regimented learning in rows in classrooms is so obviously indicative of 19th Century factory thinking that it begs for change, but many traditional education organizations have so much invested in the status quo that they will spend all our time and money hammering people into system-serving standardized thinking.  Instead of developing the skills vital for learning in an information revolution, we cling to politics and habits.  Nowhere was this more obvious than in a poor Mexican school that wasn’t serving a genius in their mix.

You have to wonder how many of our students are marginalized and never see their own potential because we are wringing our hands about how not-average they are and how they don’t respond appropriately to being indoctrinated by an archaic education system.

The article leans on technology, brain science and student centred and directed learning to bring out real genius in a student who was otherwise disengaged.  The brain research is fairly straightforward (though ignored by most education systems):

“The bottom line is, if you’re not the one who’s controlling your learning, you’re not going to learn as well,” says lead researcher Joel Voss, now a neuroscientist at Northwestern University.

Neuroscience has proven this again and again, but education stubbornly holds to an information limited, rigidly programmed learning system because these traditions support the political makeup of that education system.

“If you put a computer in front of children and remove all other adult restrictions, they will self-organize around it,” Mitra says, “like bees around a flower.”


Mitra’s research still assumes a teaching presence that will bump students along when they run into repetitive habitual patterns.  The key is a good leading question and then that dogged support as students find their own way to an answer.  The urge to interfere in this process in order to make learning clinical and exact is great, and many teachers do this with the best possible intentions, but what they are actually doing is taking away the student’s opportunity to internalize learning.

Learning is a messy process, at its best teaching is a subtle presence focused on producing a fecund environment for fearless experimentation and research.  An idea is only learned when it is internalized by the learner and that can only happen experientially.  Any time you see a teacher talking at students there isn’t any learning happening.

Faith in the self direction of a learner is something we’ve tried to remove from every aspect of the education system.  The system becomes the intent rather than the learner’s learning.  Words like curriculum, assessment and standardized data become watchwords for how effective the system is as a system, it all has nothing to do with learning.  

Many of the fads we embrace in education around self-directed learning are little more than smoke and mirrors – the appearance of self-direction in order to fool the student into engagement with otherwise rigid systemic need.  This is exactly why a genius in a poor Mexican school couldn’t engage enough to show her talents until her teacher threw away the paradigm.

Chromatic Sunsets on two wheels in 360°

360° motorcycle photos taken with a Ricoh Theta attached to the windshield with an octopus mount (see how to take photos like these here).  They were cleaned up in Adobe Lightroom.  Various digital edits to abstract the images done in Paperartist and touched up in Lightroom.

 

 

 

 



Photos first:  the Theta photos came out dark, but Lightroom was able to make them look HDR with a click of the auto setting:

 

 

 You can see the shutter struggling to catch enough light there…

 

 

 

 

 

 

 

 

 

 

 

 

I then took the Lightroom edits and ran them through PaperArtist beforre touching them up again.  So the workflow here is photo in the Theta, download to desktop, edit in Lightroom, upload to phone for PaperArtist edit, download back to desktop for final lightroom touch up.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The sunset the next night was another stunner, but I was on the deck with the Oneplus5 smartphone for these ones…

 

 

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The Ready Launch™

A momentum driven motorcycle turntable.

We pulled in to the garage yesterday and I wished for this: The Ready Launch™.  Backing the Concours out of a single car garage and around parked vehicles can be onerous, and as we rode right in and the door closed behind us it reminded me of the Bat Cave.  When Batman does it he drives the Batmobile in and it rotates for a quick getaway; I want that.

When you pull in to your garage and brake on The Ready Launch™, it transfers the forward braking momentum of the bike into a mechanical system that produces a slow, rotating motion spinning through 180° before locking again.

With some calibration and gearing it should be no trouble to capture all the momentum of a stopping motorcycle and pour it into the rotating platform.  It would be a zero energy system, reliant on the bike pulling on to it and stopping to produce the energy needed to spin, and it doesn’t need to spin quickly or far.  After a few test stops a rider would know how hard to pull the brakes to produce the energy needed for the 180° turn.


http://functionspace.com/topic/3704/Converting-Rotational-motion-to-Linear-motion-and-vice-versa

The braking mass of the bike is applied to the piston, which then turns the gears to make the platform rotate.

https://en.wikipedia.org/wiki/List_of_moments_of_inertia
http://interactagram.com/physics/dynamics/MechanicalAdvantage/gear/
The rack being pulled is where the bike parks, spinning up a flywheel that rather than lifting a weight transfers to a rotational plane under the platform.  With proper gearing the heavy platform slowly rotates using the short but heavy stopping momentum of the bike.

Stretched Thin

Originally published pre-pandemic in March of 2019 on Dusty World:  https://temkblog.blogspot.com/2019/03/stretched-thin.html

I need to reflect my way out of a dark corner.  Yesterday I got some surprise PD on students I have with profound hearing loss.  The PD was quality.  The person presenting it was not only very knowledgeable, but she was also wearing two cochlear implants, so could speak from experience.  By the end of it we had a very tangible idea of just how difficult and exhausting it is for hearing impaired students to function in a standard classroom, and yet a standard classroom is where we expect them to thrive.


How do we expect them to thrive?  By depending on the teacher to differentiate instruction, use technology and modify their lesson delivery to reach those students.  Why that?  Because any other alternative is much more expensive and downloading onto teachers is the default approach to any problem from a cost-effectiveness point of view (that’s the dark corner talking).


Empathy is my superpower when it comes to teaching.  It’s a reflex I can’t stop, but it’s also exhausting me.  By the end of that PD I was emotional about the difficulties these HH students experience all day every day and wanted to do all I could to help, but I’m not sure how much of me there is left to do it.


In a capped-at-27 students open technology class where we are working hands on with 400° soldering irons, sharp edges and live electricity, I have two students who are hard of hearing to such a degree that we are legally required to address it.  I have 9 students, or a third of the class, who have learning impairments ranging from autism to ADHD that I’m legally required to address individually.  The entire class is also in the throes of puberty.  As an open class it contains students who range from gifted/academic and on track to becoming engineers to essential students who are functionally illiterate.  Some students are living in luxury and are about to take a three week March Break on holiday (I’m supposed to plan for that too), while others aren’t getting fed before coming to school in the morning.  I’m supposed to engage all 27 of them equally and consistently no matter where they are using differentiation while also ensuring their safety.  Feel overwhelmed yet?  I do.  And that’s just one class of three.  The other two have similar expectations around size and diversity.

A long time ago now in Teacher’s College we did a day on assistive technology and I couldn’t help but think that this technology would help everyone learn more effectively regardless of where they were.  One of the reasons I enjoy teaching technology is for how it can functionally improve us.  People who use technology to waste time and distract have missed a golden opportunity in my eyes.


At our HH PD the instructor ended with this cartoon.  It speaks to that feeling I had years ago at the assistive tech day.  The sound-field system that I now have not only assists my HH students, but also my students who have signal processing problems with background noise.  If everyone can hear better, everyone will learn better.  It also saves my battered vocal cords, which is no bad thing.  It begs the question, why we don’t have sound field systems in every classroom?  But we all know the answer to that, don’t we.


In the PD it was also suggested that we have acoustically effective rooms by covering walls and floors with soft surfaces that don’t create hard, echoey soundscapes.  It was suggested that we bring in carpets and wall hangings, but based on health and safety responses to other brought in furniture, I doubt that would be allowed.  Having soft materials on the concrete blocks and industrial linoleum floors of our classroom would be great, but I doubt money exists for any of that.  It sure would be nice to work in a typical office environment, but we’re not that lucky.  Plastic floors, plastic chairs and cinder block walls are where learning happens in Ontario.


We were also encouraged to remove ambient noise as it has a deleterious effect on signal processing and requires everyone to be louder to overcome it.  That increased volume wears out voices and ears and makes for a less effective learning environment.  That’s why lawyers, bankers and politicians all have nice carpets and soft walls in their offices.


There is a lot of ambient noise in our computer technology shop.  We happen to be next to the heat exchanger in my relatively new school,, so when the HVAC system spins up background noise thrumming out of the ceiling  jumps by 15 decibels.  The 30+ fan cooled PCs in our lab add to the din, as to the dozens of adolescents sitting at them.  A typical student needs a 5-10 decibel volume bump to clearly understand instruction.  Hard of hearing students need even more.  How do we make quieter learning environments?  By not building schools as cheaply as we can, but that isn’t going to stop.  Well it is, because we’re just going to stop building schools.


So, rather than provide technology and acoustically healthy environments in reasonably sized classes for everyone, including HH students, to more effectively learn, the answer is to download the problem on teachers.  At least then it can be said that we’re doing something about it.  That’s assuming things stay as they are, but they won’t.


All this is happening in an environment of anxious uncertainty.  The general feeling is that Ontario education will be cut to the bone and what we’re expected to do will only become more absurd in the next few months.  It isn’t just in education either.  As the new Ontario cuts programs to support children with special needs, guess who will pick up the slack on that?  Yep, the education system, and it’ll be expected to do it with less.  Fortunately they have a free escape valve, just ask teachers to do more with less, probably for less.


There are numerous places we could find efficiencies in education in Ontario, but thanks to trickle down economics you can bet that the majority of those cuts will land on frontline classroom teachers and negatively impact student experience.  Those higher up the food chain will make sure their jobs are secure.  The Heinlein Starship Troopers part of me wishes we ran things like the mobile infantry: everyone drops, everyone is on the front line.  Too many people find ways out of teaching and yet get paid more for it.  In my efficient Ontario education system everyone keeps a toe in the classroom and teaches.  No one gets to opt out into a support role with zero instructional responsibility.


I get a lot of satisfaction out of my job and have no wish to leave the classroom.  Launching my students into meaningful careers in much-needed ICT roles from workplace to university streams isn’t easy but it is a real thrill.  It’s important work for Canada’s future and I want to keep doing it.  All I ask is that we be supported in that effort and not have the system punish us for its own shortcomings.  What got me down about this PD was that it boiled down to yet another level of differentiation I’m expected to deliver with little or no support.  That the system thinks this somehow resolves the problem is really aggravating; these kids deserve better.

I don’t only cater to easy to teach academics (though my classroom is capped the same way) and want to see my full spectrum of students find success, that includes special needs students like my HH kids.  My goal is to maximize their learning and help them find their best selves.  Because we’re working in ICT I hope this means they will find satisfying and challenging careers that will enable them to support themselves and their families in a very changeable future.

With all that in mind, I’m already stretched thin trying to teach with and around various special needs in a hands-on technology environment that is designed around thrift and the biggest caps in the province rather than effective learning.  That we’re as good as we are now (and that’s in national competition) in spite of all that is great, but the thought of things only getting worse is wearing me down.  If we’re going to up the ante to 35+ students and cut budgets so that we can pay for increased housing allowances and make new jobs at EQAO, I’m going to have to start putting the things down that I don’t get paid for in order to manage a punishing work load designed with generic production lines in mind.


Lowering my efficiency and not pushing us all to be our best in an emerging industry is the last thing I want to do, but needs must.  That HH PD on Friday only underlined for me how complex and multifaceted what I do is.  All I want to do is try and fulfill that difficult role as well as I possibly can, but I can’t do it if the system is intent on being less for less.


If what’s got me down are the dark headlines and ominous future of Ontario education, then I’m falling into the old trap that J.K. warns of.  What I should be doing is what I’ve always done, make best use of what I’ve got and try and reach as many students as I can.  Thanks to Friday’s PD I now have some tech in my room that should help me do that.  On Monday I’ll be speaking a bit softer but being heard better.  I’ll deal with what happens later this year when it happens.

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Dream Ride: help me by liking this post!

I applied to Motorcycle Diaries Dream Rides 2020 Contest based on the research I’d done around my Granddad’s service in World War 2:

If you have a moment, like and share this post: https://www.facebook.com/MotoDiaries/posts/1676582355842212?__tn__=K-R

If I get enough votes I might actually get to ride through Northern France on a period, 1930s motorcycle and see the many places Bill passed through with his squadron as they were decimated escaping from the Nazi blitzkrieg before Europe fell.




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Thoughts on Bump Starting a Motorcycle

It’s been one of those days.  I have a 21 year old motorbike but the 10 week old battery in it failed and almost stranded me on my way to an exam.

I’m still not sure how the Concours found a way to start with next to no electricity but I’m mighty glad she’s looking after me.  I ended up making it to work in plenty of time.

The other day the Connie wouldn’t start, plunging me into despair.  Had I wrecked the electrics with my wash last week?  Had I wired something wrong?  It turns out no, I hadn’t.  On the upside, it wouldn’t start in my own driveway, which makes for cheaper towing costs.

Thanks to some quality engineering by Motormaster I was the proud owner of a 10 week old Eliminator battery that had a bad cell.  Want to hear the sound of frustration (and Concours magic?), here it is:


I’m still not sure how the Connie got going again with almost no electricity, but she pulled it off and got me to work.  I had the auto-tech teacher handy in case my bump start failed, so here’s how it went:  I duck walked the Concours to the slight downhill out of the parking lot and got it going down the hill as quickly as I could.  I had it in second gear with the clutch in.  Dumping the clutch I got a couple of big chugs and then the bike stopped.

I’ve had a lot of experience bump starting cars.  I was the proud owner of a series of Chrysler and Ford products in the 1980s, many of which seemed determined not to start.  I’ve bump started everything from Chrysler Lasers to Ford Escorts and Mercury Capris (all manual shift, I’ve never owned an automatic).  If it’s got four wheels, I can probably get it going.

Made in Vietnam this year or made in Japan 21 years ago?
I’ll take the 21 year old Japanese bits, thanks.

There is something you need to know about bump starting a bike if you’ve only ever done it in a car.  When you get a car rolling you don’t need a lot of speed because you’ve got so much momentum thanks to the weight of the vehicle.  With the bike you need to get more speed going because you’ve got much less weight.  My first motorbike bump start didn’t because I didn’t recognize the difference in mass.  Get your bike going faster than you do with a car before you drop the clutch.

Of course, no one bump starts anything any more because it would damage the on-board computers, so this is an academic discussion.

After a jump from the auto-shop at school I was rolling again.  I got home, took out the battery and brought it over to my local Canadian Tire where it failed the tester in less than thirty seconds with a bad cell.  Twenty minutes later (there was a lot of paperwork) I walked out with a new replacement.  It’s since been filled and charged.  Hopefully the new battery can keep up with the 21 year old parts around it this time.

What does a new battery do?  Well, the bike starts the moment you touch the starter.  It feels more awake.  I imagine the plugs were putting out some pretty weak spark at idle on a dying battery.  While riding the bike seems to lug less at low rpms and feels sharper.  The lights glow brighter too.

The parts desk at Canadian Tire said they’ve never had an Eliminator fail like this before.  If it’s a one off I’ll shrug and take it as bad luck.  If I’m swapping it out again under warranty then I won’t be buying another one.  There was no real cost because it died in my driveway, but had it died on the far side of Georgian Bay it would have been much more expensive.

The Mediocrity Virus

So I’m sitting there with a room full of people who have just won the bronze medal world-wide in the most recent round of ‘who’s got the best education system’. After years of diligent effort and insightful leadership, Canada is ranked third worldwide in educational performance, and is very close to toppling the two leaders. In every metric you care to apply, we are awesome.
 
We’ve applied differentiated instruction, we push technology as far as our budgets will let us, we professionally consider every angle that we can to improve student achievement, from student centred learning to expanding non-academic stream programming in order to meaningfully serve our entire student base.
 
Are there still problems? Certainly. We still have to work to get every member of our team to produce a peak performance, but this too is happening. Our professionalism, our dedication and our society’s values allow us to compete at the highest level.
 
Into our victory celebration comes a guy from a team that didn’t even make the olympics. They’ve suffered a precipitous drop in performance, dropping from the mid-teens (the highest they’ve ever been) to thirty-third over all in terms of student performance. Their teaching profession is in shambles, and their society generally views educators as over paid loafers who take summers off. Their public education system (like their prison system or their military) is being taken over by private contractors who are more focused on simplistic metrics, like their own profitability.
 
He tells us that we have to drastically simplify what we’re doing, go back to drilling students on facts, strictly limit teachers to curriculum and install discipline back into education; this is the only way we will get them all back on a college track.  He exemplified teachers who drill their students and run their classes with a simple, military efficiency. He floated odd statistics like, students who already know a lesson will learn 400% better if they are made to repeat what they already know over again, rather than differentiating and enriching their specific learning.
 
He was statistics driven and awash in his country’s educational expertise (almost exclusively driven from privatized schools). He suggested that we might be ‘a bit ahead’.
 
The coach in me suggests that if your team is performing well, you keep doing what you’re doing. Certainly you tweak it here or there, but when you turn in a world class performance, you don’t bring in a coach from a team that didn’t even make the show to give suggestions, but we did, because we’re Canadian, and the one thing we have even more than an awesome education system is a giant inferiority complex with our big cousins to the south.

Moonbeam and Back: An In-Ontario Iron Butt & a Bike to Do It




The mighty Wolfe Bonham did a Moonbeam run this year as a part of one of his mega well-beyond an Iron Butt long distance rides.  I just popped it into Google maps and it happens to be a perfect first Iron Butt distance from home, and all in the province.


The starting Iron Butt is the Saddlesore 1000, 1000 miles in 24 hours.  They have a metric equivalent Saddlesore 1600 kilometre ride too.  The suggestion is to do a distance that can’t be short cutted for credibility’s sake.  Riding from Elora to Moonbeam and back is always going to be over 1600kms, no matter how you do it.  Another benefit is that by going up on Highway 11 through North Bay and back through Sudbury and on the 400, I won’t be riding the same route twice.

The Tiger has become fragile, so I’m jonesing for a long distance weapon, not that the vibey and exposed Tiger was ideal for that, but it’s what I had.  A few years ago Max and I rented a Kawasaki Concours14 for a ride in the Superstition Mountains near Phoenix, Arizona, and it was a glorious thing.  That Connie was a first gen C14, the newer ones have one of the highest load carrying capacities of a modern bike – so big that they could carry Max and I two-up again.  Another thing about getting back into Connie ownership (I used to own a C10), is that I’d have an excuse to frequent the Concours Owners Group again.


There is a low mileage (31k) 2010 current generation C14 for sale in Toronto with some cosmetic damage and a dodgy windshield.  I can sort out the niggles, and then this thing would eat miles like nothing I’ve had before.  There is a strange lack of Kawasaki Heavy Industries motorbikes on the Iron Butt finisher’s list (Honda has six times more bikes, BMW over eight times more).  I want to represent!  I’ve owned more Kawis than any other brand to this point, so it’d also be coming home to team green.


This particular one is blue instead of tedious grey (Concourses tend to be very conservatively coloured), which appeals, I prefer a colourful bike.  The C14 has a number of optional touring pieces, including a variety of windshields, which is good because the slab on that Concours ain’t comely.


Love the Milano from Guardians of the Galaxy.  The C14
would be getting similar higher visibility trim, especially
around those Testarosa strakes!

Fortnine has the National Cycle Vstream windshield for the C14, which would give me a smaller but more functional, better made and swoopier look.  The bike comes with a top box and panniers, so there isn’t too much it’d need, other than sorting out the windshield and doing some touch up.  Seeing a blue bike, I immediately want to liven it up with some orange trim, Milano style.  Other than a full service and a few fixes, this bike is ready to do 100k.


The stock seat is already a comfortable thing, though I’ve enjoyed the Corbin on the Tiger so much I’d consider tapping them again for another custom saddle eventually.  The C14 Concours would be the biggest bike I’ve owned and could do something nothing in the garage can do right now, carry my son and I two-up while operating within the bike’s weight capacity.  It would also be just what I need to make a run to Moonbeam and back in 24 hours as the summer winds up.

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Sturgill Simpson’s Sound & Fury

I came across Sturgill Simpson’s Sound & Fury on Netflex last month and I’m hooked!  I’ve been an anime fan since discovering Star Blazers in the early ’80s, and I’m always on the lookout for the good stuff.  That anime fandom was a motivator in moving to Japan for a couple of years at the end of the 20th Century.  While there I did me some kendo and got pretty handy with the old katana, so I have a soft spot for samurai too.

The first time I watched Sound & Fury I was swept away by the cinemtic quality of the thing and quickly became a fan of the musician, though I hadn’t heard of him before.  I especially enjoyed the disonance of a country music singer with a decidedly American sound being mixed with Japanese animation:


If you think the muscle car samurai is a cool opening, when she suddenly turns into a motorcycle wielding samurai with robot support it moves to a whole new level.  Just when you think vengence shall be hers everyone is suddenly line dancing – you won’t get bored watching this unfold.  It’s a visually stunning multimedia extravaganza that really pushes boundaries while offering a great way into a unique musical style that delivers intelligent and nuanced lyrics.  I’m not a particularly musical person, but this visual tour de force was right up my alley and encouraged me to engage with the songs.

One frustrating part of this is that Netflix seems particularly stingy with the art marketing of this project.  After looking for wallpapers online for the laptop, I gave up and made some of my own.  This is purely a work of fandom for this project.  I sincerely hope they come out with another visual album like this, it’s my kind of music.

In the meantime, if you’re a fan of the anime, these might satisfy the wallpaper itch for your digital device:



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