Diy Brushless Spindle

[njhussey]

The second piece is for the cap, I've rough (rough bring the operative word!!) turned the first piece but should really have bought a longer piece of Ali...so I'm going to turn a shoulder in the end of the first piece to more accurately hold it in the jaws (so I can then finish machine out the jaw marks) then finish machine, bore it for the bearings and part off ( couldn't get the parting off tool near enough without hitting the jaws before)...

Well that's the cunning plan anyway ;-)

What's the easiest way to accurately drill the holes for mounting the motor without any sort of indexing head/table anyone?

[blackburn mark]

What's the easiest way to accurately drill the holes for mounting the motor without any sort of indexing head/table anyone?

errrr? i did a bit of a hatchet job on my first one (not having cnc at that point)
scribed a line with a centre finder square... dot punched my first two holes then used my vernier calipers (one tip in the dot) and scribed a circumfrence from both dots trail and error style :)

it got me there (just)

make sure you mark and drill the face that is going to sit on your motor just in case your drill wanders.... i find it really easy to forget stuff like that