Reply To: Fantastic news.

[Henning]

I don’t see any tapered rods on the photo of the DPF. That’s in case I’ve translated tapered correctly.

The coil is equivalent to the shifted rods, not a backup. So you could use the initial momentum also in a tubular setup. Copper is not magnetic, so that wouldn’t affect the magnetic field of the Blake Coil.

But with the diameter you’re right. So just inserting the cylinder reduces the inner diameter for about a millimetre. The cylinder doesn’t need to be strong, because the rods supports it on 16 positions. And as it only supports the formation of the sheath, it’s maybe only a centimetre high. More a ring (with a crowny side) than a cylinder.

So we got a new part of the DPF: the Keech Ring. 😉

But maybe the sheath formation is not a problem. That needs to be measured.