rogerdw Guru Joined: 22/10/2019 Location: AustraliaPosts: 955
Posted: 01:22pm 19 Mar 2021
Yes, something like that. I do feel a sense of achievement as it comes together so that part's good.
Well I finished the next two layers ... six down, one to go. Then the BIG one.
Must be divine intervention, but there was even less left over after these two layers ... 20cm was all that was left of 27.5 meters.
It's very handy to know because it will help me estimate just how much to load in my hoop for the next layer ... or anyone else that winds one similar for that matter.
The centre hole is down to 74mm and with a layer of mylar, another winding and a final lot of mylar it's going to be around 70mm total.
The primary needs 54 turns of 103A wire ... which has an OD of 7.2mm
The "Smaller Circles within a Larger Circle" calculator tells me I can fit 54 turns of 8.2mm cable ... so it will be tight, but should be doable.