Notices by gigabecquerel (gigabecquerel@chaos.social), page 5

Who called it "novel corona virus" instead of "newmonia"

The driver is coming along as well!
I decided to go with a microcontroller to control it all, just for the learning effect.
And ever since I had a control theory lecture I wanted to implement a controller in software!
Now onto the PCB design...

Also, I did end up adding grading rings, printed from conductive PLA.
No need to risk anything withou them, and hot damn it just looks great like that!

Perfect!

Well, in diameter, not in the distance to the heatsink.
But that's easy enough to fix. As soon as I get my PETG I can print it!

Now comes the worst part:
Waiting.

And moooore waiting

Why is my youtube feed full of videos like this?
Random bs, <50 views, most probably not even made for public consumption.

Damn, I love this printer!
It just works, just what I was looking for in a tool.

@kaia Always!
But the scrapyard has moitors, too

@Laberpferd Garkein Typenschild gefunden, also keine ahnung.
Aber am ölauslass waren tropfen, denke die sind schon leer

Woooot

Woo!
And only 5 uH leakage inductance, so that should not be a concern for power.
Let's hope the isolation holds up!

This is going to get boring pretty quick, good thing I only have 14 stages left to do.

Decided to crimp the caps rather than solder, it saves time, doesn't introduce flux and doesn't heat the caps as much!
Cleaning flux from unsealed polystyrene parts doesn't sound like fun, just like heating them.

Also, I didn't think about connecting the capacitors in series so now I have to come up with something, either additional wires or I replace half of the spacers with something conductive.
Was thinking about printing them from conductive filament, but I'm afraid it might shed some of the carbon particles into the oil...

ebay to the rescue!
Now I have to wait a few more days with assembly, enough time to put some more thought into this thing to avoid mistakes like this happening again...

Half of the caps and all diodes done, now I've run out of crimp connectors.
I think I'm getting blisters :v

Woo 😍

Now, I have identified two issues here.

Firstly, and easy to fix: The tower needs to be more rigid, I'll laser some acrylic parts for that tomorrow.

Secondly:
Bit of a fuck up in dimensioning, I didn't take the thickness of the connectors as well as a few other parts into account and might have to cut it a few stages short.
If that doesn't deliver expected output I'll have to buy new threaded rods and a longer tube to contain it all, which would also not be too big of an issue.

Looks like the main multiplier is done!
Still needs ballast resistors on the output and a lot of checks to make sure no component is dead but holy shit it came out a lot bigger than expected

I am amazed!
Only had one mistake in there, one diode stack was oriented the wrong way, blocking any current flow. Luckily it was only three stages down from the top, so rotating it was fairly quick.
To test the thing I supplied 1.5 kV through 2 MOhm to the output, polarized so that the diodes are in forward direction.
This plot shows the measured stage voltages resulting from diode drop.
Looks pretty damn linear to me!