Results tagged “Hobbies” from Kazza the Blank One

So the dodecahedron and the icosahedron are dual solids.   The icosahedron has 20 faces and 12 vertices, while the dodecahedron has 12 faces and 20 vertices.  It means that if you truncate either one of them to the same point, you send up with the same shape - the icosidodecahedron.

I made the paper solid from a net from korthalsaltes.com..

Paper icosidodecahedron

And I made the paper geodesic version from Vince Matsko..  (If using his nets, you will need three pages of the pentagons, and one page of the triangles.  The tabs for the five triangles making up each pentagon will go in the middle.  The triangle is equilateral so doesn't matter where you put the tab).

Paper geodesic icosidodecahedron

Here's the two of them together..

Icosidodecahedrons

Four frequency paper geodesic icosahedron

Over the past few weeks I've been making the paper geodesic icosahedron pictured above.

As with all my other balls in the past few months, I got the nets from Vince Matsko's website.  The problem with this model is his instructions aren't very useful if you don't have Magnus Wenninger's Spherical Models book:  

Not so challenging as its 8-frequency companion, this model requires just 320 individual spherical triangles of 5 distinct types. Bands are labelled numerically as in Figure 48 (p. 95) of Wenninger's Spherical Models. Although not individually labelled, the bands adhere to the following scheme: in Table 4, the arc in the third column of the list of bands is always next to the tab. You can easily check this by noting that in a circle, larger angles subtend larger chords, so you can measure chords to find out which angle is which.

The finished model will be approximately 14 inches (36 cm) in diameter.

Vince's net pdf document contains bands for the five different triangles.  But without Wenninger's book, you've got no way to know which band is which.  So here's one I prepared earlier:

Four frequency icosahedron instructions from Wenninger

You can see from the diagram there are five different shaped triangles, numbered 1 to 5.  This matches the pdf document on Vince Matsko's site.  Also take note of the lettering - letters a to d indicate the length of each side (remember these aren't equilateral triangles!  see Wenninger's book for more details on the mathematics of it).

The next line of instructions:

Although not individually labelled, the bands adhere to the following scheme: in Table 4, the arc in the third column of the list of bands is always next to the tab.


Again, without the book you've got no hope.  And even if you do have the book, it can take a while to figure out what he actually means.  Eventually I figured it out.  Here's the table he's talking about:

Four frequency icosahedron instructions from Wenninger

Highlighted on the right is the "third column" he's talking about.  If you look at the first picture from the book further up, you can see that triangle number 1 has "a", "a", and "b" as the lengths of its bands.  And triangle 2 has "b", "d" and "d".  And so on.  The table above shows this as well.  Now, in the table above, what he's saying is that the "tab" in the printouts is always next to the letter in the third column.  So for triangle 1, in his pdf it will be a-b-a-tab.  Triangle 2 will be d-b-d-tab, and so on.  Here's what it will look like:

Four frequency icosahedron bands

You'll note above that triangle 3 is asymmetric (look at the big triangle at the top to confirm this).  Half the triangles are "left-handed" and half are "right-handed".  If you were to print out all the copies of triangle 3 and fold them the same way it wouldn't work.  

Here's the diagram from the book, but also showing the locations of the tabs once it's all put together, and showing left and right handed triangle 3.

Four frequency icosahedron instructions from Wenninger

Now the triangle above is just one "face" of an icosahedron.  Remember an icosahedron has twenty sides.  So you will need 60 bands for triangle 1, 60 for triangle 2, 120 for triangle 3 (60 left-handed and 60 right handed), 60 for triangle 4 and 20 for triangle 5.  Using Vince Matsko's nets that's 10 pages for 1, 2 and 4, 20 pages of 3, and 3.3 pages of 5 (4 pages with a couple of leftovers).

But.  If you were to print out the nets on A4 paper, the ball would be *huge* - double the size he says in his instructions.  So I resized the images and pasted them into a word document.  While I was at it, I flipped a copy of triangle 3 so the black lines would always be on the outside.  Attached is my word doc with the nets that I used.  It includes instructions on how many of each triangle you will need.

Right.  So now we've got the design sorted, let's get started.

I printed each triangle on a different coloured piece of paper.  And for triangle 3, I did the left and right handed triangles on different coloured paper (blue and green).

Four frequency icosahedron paper

Next, cut them up.  Each one took about thirty five seconds to cut.

Once they're cut, fold them up.  I folded them so that the black line from the printout would always been on the outside.  Each one took about twenty five seconds to fold.  I did most of this in front of the tv.

Four frequency icosahedron bands folded

Once they're glued into triangles (each one took about fifteen seconds), you can lay them out to see what they will look like before gluing.

Four frequency icosahedron triangles

I started a production line - got all sixteen little triangles for each face and put them together.

Four frequency icosahedron production line

Four frequency icosahedron production line

Then I put them together in the correct configuration, with all the tabs in the correct locations.

Four frequency icosahedron production line

And then glued them all together.  Here's all twenty faces glued:

Four frequency icosahedron production line

Now for the really fun part - gluing all twenty faces together into a ball!

Four frequency icosahedron with five faces glued

Four frequency icosahedron half way

Four frequency icosahedron half way

With six faces to go, it will fit quite nicely over your head.. ;)

Four frequency icosahedron helmet

And finally, we're finished!

Four frequency paper geodesic icosahedron

A very time consuming, but quite impressive effort :)

Making Stuff

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I've been making stuff.  All to be revealed soon :)

I was making stuff instead of cooking tonight, which means I'm going to need to get up early in the morning.. oh well..

Have also done a few entries on my new blog.  Again, all to be revealed soon!

To much to do, too little time.  Can I retire now?  I could really use another eight hours a day to get stuff done...

Lakeside Village

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I realised I never actually posted a photo of the paint-by-numbers I spent like four months doing!

Here it is!

Paint by numbers - Lakeside Village

Here's the eighteen colours it came with

Paint by numbers paints

And here's the twenty-one extra colours that I had to blend (there were eighteen colours to start with, but the pots were all very large and only the dark brown one was almost finished when I was done - they could have made most of pots smaller and actually provided the extra colours! #grunt)

Paint by numbers extra colours

Somewhat annoyingly, several of the colours were all clumpy, and needed water to thin them out.

Dodgy paint

Also, many of the paints weren't thick enough to be completely opaque - most areas needed at least two coats, which was super super annoying.

So while it was a lovely picture, and the detail was amazing and there weren't any mistakes on the board, I'm not sure I'd buy another set from this brand again.

More backlog clearing

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Just some more photos gathering dust that need blogging.

These were all the dried up paint-by-numbers paints I threw out.  In February.

Paint by numbers paints

This was taken during a walk around Lake Ginninderra. In May.

Belconnen peninsula

Italian thick white hot chocolate in a Hug Mug.  OMFG soooo good!

Hug mug

After a very long lunch to farewell our team as it was, I built this.

Everything is Awesome!

We brought this box of Cadbury Creme Eggs home from Junee with us (they'd been sitting in David's pantry for about five years).  We're still getting through them.

Cadbury Creme Eggs

Stu got kitty snuggles with George

Kitty snuggles

This was my lemon meringue mush a while back.  It tasted great but the recipe needs work.

Lemon meringue mush

Lemon meringue mush

This time I got George (and Petal) snuggles

Me and the menagerie

Holy beer it's your birthday!

Holy Beer

We had a bourbon night a few weeks ago.  They all had fairly unique smells but tasted relatively similar.

Bourbon night

Cute little flowers we saw on the walk up the Owl to complete a mission

Flowers

Awww

Pals

I totally love daffodils

Daffodil

Daffodil

Bookended

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So spent the beginning and the end of the weekend swimming with EffanC.

Friday night was a club swim night at a private indoor pool.  Which should be nice in winter.  Except.  The room has terrible acoustics, which meant it got very loud with not many people.  And then people started pegging balls at each other which made it all kinds of tedious.  But then some people left and it quieted down which made it nicer.  Went back to EffanC's and we had some wine and cheese and watched Peter Jackson's Braindead, which apparently used the most fake blood in a movie ever.  But the horror was all so cheesy and fake that it didn't bother me.  Then a couple of episodes of The Katering Show which was hilarious.

Saturday was very quiet, just housework and painting and tv.

Sunday we did some food shopping and then more of the same.  In the evening we met up with EffanC for dinner.  We were going to go to Kinh Do, but it was booked out, so ended up at Chong Co.  

Chong Co spring rolls

Chong Co satay chicken

Chong Co pad thai

Chong Co soft shelled crab

Then back to our place for a chilly swim.

Paint-by-Numbers

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I first found out that paint-by-numbers were a thing back in the early eighties.  My best friend at the time, Donna Bonnefin - her brother Paul had been given a set of a collie.  I was amazed and wanted to do one.  So I somehow got a double set (could have been a Christmas or birthday present) and did them.  The brush that came with the set with pathetic, and I was still quite young and my motor skills weren't the best, so I actually did most of them with toothpicks.  I gave one each to my nana and grandmother, where they were displayed until they moved into hostels/nursing homes, at which point I got them back.  Since then I've done several over the years.  I am not creative at all but have great attention to details and patience, so these things work well for me.

So this was the first paint-by-numbers I ever did.  Much of the detail was done with toothpicks but the larger areas and blended areas were done with a brush.  These were oil paints which took *forever* to dry, which meant blending worked really well because both sides were wet.  This one went to nana.

Paint by numbers swans

This was the other one in the set - it went to grandma

Paint by numbers ducks

I'm pretty sure these horses were next.  I was still doing some of the detail in toothpicks, but was a bit better with a brush.

Paint by numbers thoroughbreds

Paint by numbers thoroughbreds

Paint by numbers thoroughbreds

Then I think were these kittens.  Before I left Sydney I was giving things away left, right and centre, and sadly I gave these away too.  I'm actually really regretting it.  I hope the person that got them didn't just chuck em out.  I did at least put my website on the back, just in case...

Paint by numbers kittens

Paint by numbers kittens

Then a couple of puppies.  Little bit boring as a very small range of colours.

Paint by numbers puppy

Paint by numbers puppy

I did the bears a bit later on in life - maybe around my uni days.

Paint by numbers bears

These swan lake ones I did as an adult, but I got super frustrated because a couple of the paints dried up before I finished them.  The first one is missing just some of the dark brown, while the second is missing some of the blues as well.  All the sets so far except the very first two were by Craft House, so was a little disappointed.  They're oil paints too, which means that even though I could probably make up the colours using my latest set, it wouldn't be the same because the new paints are acrylic and dry quite matt, whereas the oils have a nice sheen.

Paint by numbers swan lake

Paint by numbers swan lake

And this is the one I completed just recently (bought it for the summer break a year ago).  I was a bit disappointed in this.  It looked nothing like the box for a start, because the paint-by-numbers was modelled on an actual painting, and this looked really nothing like it.  Plus there were mistakes, including on the face where there were two large areas next to each other with the same number which made it look really dumb, so I improvised a bit.  Another annoying thing was this was the first set I'd done where you had to blend your own colours.  Sure it doubled the available colour palette, but it was really painful to work with.

Paint by numbers fox

I'll update this post when I finish my latest set :)

ok here we go.  This took like four months to do - felt like forever!

Paint by numbers - Lakeside Village

After the horror of yesterday, today was a quiet dream.  We fixed one of the problems from yesterday (I got the three relevant parties in a room and they sorted themselves out).  Then I spent the afternoon just Getting Stuff Done.  Infinitely better day.

Tonight I started the new paint by numbers set that arrived this morning, while watching dad's nature documentaries.

So Friday night saw us leaving straight after work for EffanC's for F's birthday party.  This was a very pleasant evening (if a little hot - I really shouldn't have worn jeans) and we stayed outside chatting and stargazing for several hours.

Saturday morning we packed and headed out to the club.  Had a very relaxing afternoon in the pool, meat pies for dinner, and a reasonably early night.

Sunday I spent a good chunk of the morning on my jigsaw, and a good chunk of the afternoon on my longstitch - finished it, yayy!!  Then some more time in the pool, cooked a big potato bake for dinner (which everyone else helped share - so much for leftovers hehe) and then back in the pool because it was *warm* there - much warmer than outside after the change came through.  A lovely evening.

Today we cooked up bacon and eggs and tomatoes for breakfast, then came home.  I went downstairs to hide from the TripleJ Hottest 100, which was quite awful.  Did some jigsaw and watched documentaries.  One of the documentaries was Raging Planet and an episode on cyclones.  They were talking about Andrew and how it had spared New Orleans, but how much trouble it would be in if it got hit head on by a hurricane.  The doco was from 1997, and it was a little unsettling knowing that Katrina did just that a few years later... Did a couple of loads of washing, which was pretty much the only useful thing I did at home today.  Then headed out again to Stu's Japanese class for dinner.  

I still haven't done the vaccuuming.

More Achievements?

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Didn't kill anyone today, I suppose that's an achievement.

And got my flex time back in the black for the first time in nearly six months.

Also went into Optus and halved what I'm paying them each month *and* am not locked into a two year contract.  Definitely an achievement.

Cooked our second night in a row of Costco ribs (beef last night, pork tonight).  Both pretty good.  Completely evil though.

Also got our wedding photo book delivered today.  And they didn't dump it next to the letter box to get rain soaked this afternoon.  Epic achievement.  And it turned out really well, the lightened pictures look a lot better.  

Pulled out all the paint from all my paint-by-numbers sets going back thirty years.  Funnily enough all the paint has dried up in them.  Even the more recent ones.  Which is a bit of a poo because I was hoping to be able to use some of those paints to finish another one I got a while back that I never finished because the paints dried up *while I was still doing it!!*  Was pretty annoyed about that.  I can use one of the paints from the last one I did (even though it dries matt) but don't have two of the other colours I need which is a big poo.  Oh well.

Achievements

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So several achievements tonight.

Firstly, I finished sorting 2013 photos into folders, leaving just a few thousand from 2014 to file.

Secondly, I finished the paint by numbers I've been working on for a while.  A bit disappointed in how it turned out actually.  Not as good as other ones I've done.

Finally, I finished watching Wonders of Weather, a documentary dad had on dvd.  The last episode featured a whole heap of Simon Carroll's work.  Just amazing.

Filed

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So I achieved something tonight.  I finally finished the first pass of sorting my digital photos from year/month folders to folders by subject, finishing off photos from 2003 tonight.  I still have a good chunk of the last two or three years to file yet, so still a bit of work in that space.  Also did a bit of painting and watching dad's weather documentaries.

Today was yet another day of stress, problems and interruptions.

But we did have rather a nice lunch for Aquila's birthday at Black Pepper.  I had some satay chicken skewers which were delicious.

Kazza's "Boring Life Of a Geek" aka BLOG

IT geek, originally from Sydney, moved to Canberra in 2007. Married to "the sweetie", aka Stu. Prolific photographer, Lego junkie and tropical fish keeper.

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