three sample motors coming with Ethos production

[Quentin Jarrell 671]

1st motor will be a 3inch four layer flat copper coil with 12mm of xmax

2nd motor will be a 3inch four layer flat copper coil with 20.25mm of xmax

3rd motor is a fairly large motor:

top and bottom plates are 260mm OD and 50mm thick

magnet is 270mm OD and 50 mm thick

the first test coil will be 3inch eight layered flat alluminum coil 100mm long (gives around 35 xmax)

my magnetics modeler was dead on compared to Klippel results on the Ethos so I can safely say that this motor will be around 34BL with a 1.75 Re giving a motor force factor of 660

All three of these samples will be coming along with the production run of the Ethos which I expect to be in for tax time.

Magnetic pic of the BIG 270mm motor

[Quentin Jarrell 671]

I have added the big MMAG to the list of samples. OD is 270mm just like the above overhung motor. I'm gonna use a 50mm long 8 layer copper coil as the standard coil. I'm also gonna try out a 100 mm long 8 layer aluminum coil. If it doesn't completely destroy the softparts ill offer it as a SPL coil.