Diy Brushless Spindle

[njhussey]

I'll reply to the rest when you've done a drawing...

Well I've had a look at the design and tewaked it a bit. Will probably do a MK2 spindle using this method or I might tweak this one I've already machined. this one is only really going to be cutting up to 6mm balsa and 3mm ply so I can't imagine the forces as being huge. I might stretch to some delrin/acetal and even try some Ali for a laugh



This shows the top collet (but I haven't bothered showing the grub screws) on the 8mm shaft which is pre-loading theinner races against the bottom collet. I'm guessing I could get away with not securing the bottom collet (locktite) as it will be trapped between the bottom bearing inner housing and the ER16 collet.



This shows the assembled unit (minus the bolts but we all know what they look like!!)



The bearings in the above are not spaced the correct distance, they will be a further 10mm apart so I can get some Bellville washers in between.

This design has the inner races locked to the 8mm shaft and the outer races are constrained by the endcaps...............comments?