@rp181: While that sounds worth investigating in theory, I can't think of any way to do it that doesn't require tools and materials which would be far beyond my means to acquire. Considering that you seem to be able to get all the supplies for your projects for free, why don't you try it?
@ino: How well lined up with the long axis of the rod do these threads need to be? To cut the 1"-8 internal threads for my ETG, I held the workpiece in a three-jawed chuck, lined up the indent on the back of the tap with the point of a live center in the tailstock, then moved the tailstock toward the chuck until the tap was held in between the live center, and the hole it would be tapping. I locked the tailstock in place, moved the live center forward a little to hold the tap tightly, then set up a pipe wrench so that it was gripping the tap, and braced on the bed of the lathe. By turning the chuck (using another pipe wrench holding the workpiece) and also keeping the live center pressed as hard as I could get it onto the tap, I was able to tap the threads very straight, and without too much difficulty. They're not entirely perfect, but more than close enough for my purposes.
Also, several hundred thousand "continuous" (don't worry, I know what you mean by that) seems overly optimistic, from what I remember of my calculations on the same topic. I thought it was more like 100k-200k. I'll have to redo them and compare...
@MrCrowley: In Canada, the definition of a firearm requires that it is, or can be used as, a weapon. As my ETG is entirely immobile, and can only be aimed at a wall roughly 3' away due to the restrictions imposed by the length of the main cables, it doesn't fall under that definition. I don't remember the exact wording of the U.S. definition, but at worst it would be considered a muzzle loader, and not subject to a whole lot of legislation in most places. If I remember correctly, Australian law technically classifies everything from an automatic rifle to a toaster as firearms. It would be a safe bet that ETGs fall somewhere in between, although a toaster would likely be a more effective weapon than my ETG...
Well, you already know the capacitance. The maximum voltage for each is 16kV, with a lifetime of 10<sup>5</sup> shots at 20% voltage reversal. They weigh roughly 130 pounds each, and are regular geometry steel-cased Maxwell models (with two insulated terminals, the case is not live).
The capillary tubes are, and have always been, ABS. Although it's hard to tell, since the back of the plate bulged, I wouldn't be surprised if I exceeded the ~2.2mm penetration depth that Newton's approximation would yield.
Also, I'm sorry I didn't get around to answering your other question, regarding where I obtained them, before. I completely forgot about it. The simple answer is that the capacitors were obtained by [removed
] from an [removed
] by a [removed
] in [removed
] called [removed
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Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.