Starting to round up the needed pm's etc. Will try to use my Prusa 3D printer for the rotor and stator brackets, etc.
Pm
Hi Graham 12x50s are avaliable on ebay au,so not sure why not in uk? Anyway,i get most of my magnets from Frenergy Magnets. There is also nothing stopping you using shorter magnets glued together-say like 2 of 12mm x 25mm to make your 12x50 magnet,or even a heap of 12mm button magnets glued together,as the resulting field will be that of one long magnet. The size is really up to you. I just scaled down another device to a 1/3rd scale. As long as you can build to the design-fit coils on 1/2 of the rotor magnets,then it should work. Dig up what you have lying around,and lets look to see if they will work. I am using 12mm × 10mm ceramic magnets glued together. For those using neo's,consider this__ 2 of 12x50 n52s will have an attraction force of around 25kg's This is the sideways force that will be placed on your rotor and shaft--hence my warning in the previous post about being able to build a very solid device,where there will be less than 1mm flex between the stator and rotor magnets. Do not use alnico magnets,as the poles are easily flipped. Cheap ceramic magnets will make for a good pulse motor Brad
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