Toolchain

15 March, 2017

So, I have found a toolchain that seems to be able to create the shapes I want.

The difficulty is that OpenScad just barfs when I try to work with complex imported STLs. I’m looking to hack up dungeon terrain, so the things I pull in tend to be ornate, with a lot of triangles. HAcking up involves bolean operations, and it’s just too much for the software.

So.

Use netfabb basic to do any overall cutting of of the imported shape.

Export the shape to stl, and import it into OpenScad. However, decorate it with a ‘%’ so that it does not become part of the final shape.

Build the shapes that you want to union/intersect/difference with the imported shape. Screw holes, recesses for electronics. Export that shape as an STL.

Import the terrain and your working shape into Blender. And this is the important bit: save it as an obj file. The obj file will contain all of your shapes, and at a guess it does them as solid polyhedrons rather than as a manifold.

Then remove the stl files from your scene and import the obj file you just exported. From here, you can use Blender to perform the boolean operations.

Then export the result to STL with options “selected shape only” and “apply modifiers”. From there, pull it into Slic3r, slice, and give it to your printer.

Success!

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The real purpose of the Jedi Knights

7 January, 2017

The Jedi Knights were founded for a purpose, and the rank-and-file Jedi themselves are mostly ignorant of what that purpose is. Consequently, they have been successfully carrying out the plan for centuries.

The purpose for which the Jedi were founded is to exterminate force-users.

This is why they kidnap boys and turn them into monks who don’t reproduce and train them to be remorseless killers. It’s as simple and as obvious as it is that the entire purpose of Hogwarts is to breed more wizards.

At which point, you have to ask the rather chilling question: what about the girls? Oh, I’m sure that the star wars movies produced later on are more gender-diverse, but look at the first cut of the star wars universe. It had – what – two women? And most certainly no female Jedi.

Consider the “light side” and “dark side” of the force. The light side – calm, rational, the dark side – stormy, emotional. These terms are code. Isn’t it plain that the “light side” of the force – calm, rational – is male; and the stormy, passionate “dark side” is female? We are talking archetypes, here. Jedi are taught that the light side is good, and the dark side evil. That is: Jedi are trained from early childhood to fear, distrust, hate the female side of The Force. Women.

So what about the girls?

The secret conspiracy is this: at the core of the Jedi Knights are a cadre of witch-finders. They take the most fanatical, the most screwed-up boys and teach them that women are succubi. Agents of the dark side. Witches. They teach these boys that any feelings of humanity or pity in themselves are  a temptation, something to be resisted and expunged. Should they feel any remorse about killing a witch, that very remorse is proof of what wicked tempters and seducers women really are. And those boys grow into men with the mission to scour the galaxy clean, and who in revered and respected old age do their part to perpetuate the system.

(It is no coincidence that their weapon is the lightsabre. The favourite weapon of holiness against wickedness has always been fire and the sword. Witches have always been burned whenever they were found.  How perfect, then, is a sword actually made of pure, incorruptible fire?)

That’s what’s going on.  That’s the real story. The Jedi are being played, they were being played right from the very beginning. They think it’s all about peace, justice, right, justice, and the light side of the force. The witch-finders, too, think they are doing the good work. But unknown to them, the whole point of the organisation they comprise is to wipe out people like themselves.

 


Baphomet

19 December, 2016

Like a boss. The code for this is mainly on thingiverse.

20161219_021143.jpg


LOTR: The great cover-up

13 April, 2016

Has the climax of Lord of the Rings, the destruction of the One Ring, ever seemed a little anticlimactic to you?

Has Sam’s role in book three ever seemed a bit – I dunno – superfluous? I mean, he carried Frodo at one point. Ok, and rescued him from the orcs. But the story might be a little stronger without a sidekick. Is he just there as a comment on the great british working class?

Oh incidentally, you know how Frodo tells Sam the ring will destroy him? Why? Why would it destroy Sam and not Frodo? Because Sam is lower class – like Smeagol – whereas Frodo is a property owner. Oh Britain, thy name is snobbery!

Getting back to it – why is there that scene where Frodo is just finishing up transcribing the record of is adventures, and it turns out to be the book we are reading? Isn’t it a bit awkward? Wouldn’t it have been better if that coda hadn’t been there?

Well, I’ll tell you why it is there. Whenever an author takes pains to let us know that a book is narrated by a character in the book, that is telling us that the book is not written from a neutral, third party perspective. It’s telling us that not everything is as it seems, that not everything is to be belived.

Smeagol/Gollum. What a survivor! Centuries old. Walked across middle earth. Survived. Spent centuries in goblin caves in the Misty Mountains. Survived. You know how Boromir said “one does not simply walk into Mordor”? Gollum walked into Mordor. Several times. And out again. He knew all about Shelob, and fully expected to be able to retrieve the ring from the lair of a demon spider that had lived since the end of the First Age.

And in the end, he just tripped off a precipice in a moment of sheer inattention and “Oops!” into the lava.

Do you believe that?

Why was Sam there? In that moment, in that scene? Why had the fates conspired to put him there, trailing Frodo all the way?

He had a job to do. A destiny to fulfil. Because at the end of all things, Frodo could not destroy the ring. Just couldn’t do it. It fell to Sam to do the necessary. Motivation? Hell yes – that business with the Lembas on the way in, on top of everything else. He was primed for his moment.

Read it again. Sam destroyed the great ring. Sam brought down Sauron. Sam ended the third age of the world. Sam – it was Samwise Gamgee, a simple gardener from the Shire, who finally made that decision, who acted. Who did the thing.

And Frodo wrote it out of the book, because when all’s said and done, it was murder. Oh yes, layers of motivation. But one of those layers was simple spite.

And that’s how it went down, there on Mt Doom, that morning at the end of the Third Age. That’s what happened, and why.

So don’t believe everything you read. Not when you are warned that the narrator might have an agenda.


Last night, I dreamed of heaven

25 March, 2016

And I beheld, and I heard the voice of many angels
‘Round about the throne, and the beasts, and the elders
And the number of them was ten thousand times ten thousand
and thousands of thousands, saying with a loud voice:

Blessing, and honour, and glory, and power
Be unto Him who sitteth upon the throne
And unto the Lamb forever and ever
Worthy is the lamb that was slain.

Last night, early Good Friday morn, dreamed of heaven.

Heaven was a perfectly cubical building, about 1,400 miles across. Outside – there was no outside. All other existence had been done away with. Creation had served its purpose. Long, long ago (I will not say that it had been millions, or billions, of years – time has little meaning here), God had rolled up the heavens and the earth like a scroll, and all that remained of reality was this pocket.

The whole of the inside of this vast building, about the size of Brazil, was a ziggurat, one vast set of steps, on which people stood to offer their praises to God, while angels flew above, criss-crossing the space.

That’s it. That’s all that happened here. Angels. People. Singing and praising God. Non-stop.

The song changed:

Holy, holy, holy
God of power and might
Heaven and earth are filled with your glory

Hosanna, hosanna! In the highest!

The had all sung this song ten thousand, or ten million times before – been through the entire Hillsong back-catalogue and every other song of praise ever written ever, over and over. Yet they had only just begun to sing praises to God. They were going to be doing this forever. Exactly this. In this building. Forever.

At the peak of the ziggurat sat God. On a throne. He was not as western art pictures him. He was a handsome middle-easterner in the prime of his years. He had a neat little beard and wore a rich red and gold robe with a turban. He smiled and tapped along to the rhythm of the song, as the redeemed of earth offered their endless, deeply felt, utterly sincere flatteries. Thinking to himself:

“It was all worth it.

“I did it all for this, for this, and it was all so totally worth it. The religious wars, the persecutions, the racks, the burnings, the diseases, the worms that infected people’s eyes, the little children dying of hunger. I had to throw fifty billion souls into hell just to have these two and a half, but it was worth it. An endless age I existed all alone, just the three of Me, until I struck upon the idea of creation. All I ever wanted was some things that I made to tell me just how great I am, and now here they are doing it. This – this is awesome!”

The song changed again:

Thou art worthy, thou art worthy, thou art worthy O Lord,
To receive glory, glory and honour, glory and honour and power!
For thou hast created, hast all things created,
Thou has created all things.
And for thy pleasure they are created,
Thou art worth O Lord!

The thought struck him, as it always did (being unchanging, he never learned anything).

“Worthy!” He thought, in wonderment. “Worthy! I am worthy, I am worthy, I am worthy – yes! I am worthy! I deserve this! I deserve all this! Every last bit of it! And more besides, for I am a jealous God.”

A flicker of flame caught his eye. The whole of the floor of heaven, the whole ziggurat, was made of glass mingled with fire. Within it, the shades of the damned writhed and wailed in endless torment.

“Look at her!”, God thought to himself. “Stephanie Frumm. She didn’t think I was worthy, she went her whole life without telling me once just how great I am. Well, sucks to be you, Steph. Sucks to be you. All I ever wanted was for you to obey me, and I would have settled for an admission that you ought to obey me, and a weekly apology for not doing it. But no, no, Steph was just too good for that, to good to submit herself to the will of Me. Well fuck you Steph, now you’re burning, and you’re going to stay burning forever!”

Over on tier thirteen thousand seven, Stephanie’s mother – Enid – stood worshipping. Wearing a white robe, shining like a star in the reflected glory of God, she sang:

As the deer pants for the water, so my soul longs after you.
You O Lord are my heart’s desire and I love to worship you.
You alone are my strength, my shield
To you alone does my spirit yield

“See that, Steph? You mother knows what’s what. You could have been out there right now if you’d just asked me to forgive you. She was faithful, faithful to the end. And now she has her reward. Well done Enid. I love you too!”

Around the throne of god the four cherubim flew, mightiest beings in all creation. With their six wings, they hid their faces, bodies, and feet, and the called in a loud voice “Holy, holy, holy is he who sits on the throne!” Non-stop. God never got tired of it, never grew bored or weary of it, never thought to himself “Ok, guys, I get it now”. Everything he had ever done, he had done for this, this single, endless moment.

Stephanie’s mother, Enid, had forgotten all about her daughter, about everything she had ever cared about in life. All tears had been wiped away from her eyes, all grieving and sadness and regret, all fear. All she knew was the endless love of God. She wore a gold crown set with precious gems just like everybody else, and a silver cord went from her navel to the small white pillar she stood next to, a white stone with a name on it that only she knew. Her eyes were blind, her sight burned away from looking on the glory of God, and her voice was hoarse from shouting his praises. She wept tears of joy, her face alight with devotion. She had made it. She was here, in heaven, worshipping God. Safe forever, and forever grateful because the love of God had saved her from a lost eternity in hell.

Our God is an awesome God
He reigns from heaven above
With wisdom, power, and love
Our God is an awesome God

In my dream, I saw all this, flitting insubstantial among the redeemed, the saints in heaven. And then God’s gaze flicked over to me. His expression darkened, and he opened his mouth to speak.

Then I awoke and dreamed no more.


The Prize

12 March, 2016

A photodiary of a sucessful couple of hours.

ThePrize - 1c

A sucessful trip to Revolve

ThePrize - 2c

Ready to start work

ThePrize - 3c

Work in progress

ThePrize - 4c

First sight

ThePrize - 5c

The prize

The coil is actually freaky. The whipper-snipper does not have a distributor. Instead, it’s done magnetically (!!). See how the core of the transformer has a circular gap? There’s a lump of metal on the cooling fan on the shaft that closes and breaks the magnetic circuit as it goes past. Freaky.


Voltage

8 March, 2016

Well, I abandoned my voltage multiplier thingy and just went the other way. I bought a cheap little plasma ball. These guys emit kilovolts at the hot end at radio frequency.

To turn this into a static grass applicator, I added a pair of diodes and a capacitor, and a couple of 1MΩ resistors for safety.

Ignore the 1N4001 on the diodes – I went into Jaycar and said “give me the biggest diodes you have”. Dude asked “are they carrying a lot of current?”, and I was like “Naaah”. I wound up with a pair of these fat bastards. Like a 1N4001, but three or four times the diameter. Capacitor was the biggest one from the “high voltage” bin. Fat resistors, too, although probably not necessary. Again – not a lot of current.

Anyway. And it simply seems to work. My mate the modeller has been playing with it, finding out what combinations of things work best. His latest to me was:

I rewatched some terrain videos and tried a few changes, which gave the best effects so far.
Thicker PVA glue is better than watered down, as the bits spear in and don’t get mired sideways as easily.
A smaller mesh lets fewer bits through at once, avoiding the matted effect, and perhaps allowing more charge to accumulate per bit of grass. I used a finer mesh kitchen strainer, holding it with a silicon oven mitt to insulate it. Must wash it afterwards. 🙂
Lastly, tapping the grass in a dabbing motion with the mesh definitely lifts the grass up. This is easier with a mesh that protrudes downwards like the kitchen strainer.
I’d like to try some longer grass as I’m using 2mm, which is the shortest.

The results look like this:



So in the end, I needed to buy a manufactured thing. Which I had not wanted to do. But on the plus side, no-one else seems to have used a plasma ball, so I have done this a way that I had not found on the net.

You’d thing that circuit wouldn’t do anything at all, but I suspect the HF coming off the transformer is key. You definitely get a spark off the capacitor if you bypass the resistors. It might be better if one of the outputs off the diode went through something to phase-shift it, but that’s really a bit beyond me.

The resistors will limit the charge should the output be connected to something leaking at a comparable resistance, but that’s not what we are doing. Instead, the charge will be limited by the natural capacitance of whatever you clip the alligator clips onto. I have suggested that putting the work pieces on upturned glass jars might be the go. The unit works well enough that there’s no pressing need to remove the resistors, and I feel happier knowing they are there.

I found one interesting thing on the plasma ball board: an inverter chip. I bet that’s how they are generating the HF: just wire an odd number of inverters in a cycle. I hope that’s true, because it means they are essentially using a Minecraft redstone oscillator.

$20 for the little plasma ball, $10 worth of parts, not including the false starts and the stuff that is going into the parts bin.

So there you have it. We go from “Jeez, it would be tres cool to have one of those static thingies” to “Well, here you are then! Go nuts!”