Herding Cats
Hardplates
Anyone have any experience with them? Those 5 on ebay are less than an hour from me and I can call the business directly.
I'm have a fairly good idea on how to test them. A 32" should be around 5.5 ohms for the coil, larger magnets will be less. Should have nothing to the case, I also have a megger I can check from the coil to the case.
As far as a power supply, I'll need at least 50 amps at 230 volt DC which I have plently of components like 150+ amp IGBTs, large diodes, a large varistor and so on. I haven't decided if I am going to run an AC generator and rectify the power or use a DC spindle motor as a DC generator and maybe drive it hydraulically.
Anyway, I'm asking more as a reality check if there is something obvious I'm overlooking?
I'm have a fairly good idea on how to test them. A 32" should be around 5.5 ohms for the coil, larger magnets will be less. Should have nothing to the case, I also have a megger I can check from the coil to the case.
As far as a power supply, I'll need at least 50 amps at 230 volt DC which I have plently of components like 150+ amp IGBTs, large diodes, a large varistor and so on. I haven't decided if I am going to run an AC generator and rectify the power or use a DC spindle motor as a DC generator and maybe drive it hydraulically.
Anyway, I'm asking more as a reality check if there is something obvious I'm overlooking?