Diy Brushless Spindle

[njhussey]

Neil,

Looks like it's coming along!

I've had a shake up here as well, lots of my toys are still in boxes. Was laid off, found a job, moved from California to Michigan (~2300 miles!), bought a house... phew, that makes me tired all over again thinking about it!

Here are some pics of my copycat spindle design, I think I'm in the same spot of the build as you are Neil.




I'm using a Turnigy G110 motor, two 8x22x7 angular contact bearings, 4 belleville washers, and an er11 collet with 8mm shank. I'm mostly going to use this spindle for light work: plastics, engraving, PCB cutting, etc.

I'm a little concerned the bearings will heat up, any thoughts on this?

Also, did you re-install the e-clip ring onto the new shaft?

Looking good, I couldn't get the holding nuts in the housing as the PCD of them is too close to the 22mm centre hole. I'm going to have a real session on it this weekend as for once I'm in Hereford and not got anything planned (although if it continues to be sunny like predicted I'll be out up the field with my RC helicopters ) and as June will be a write off as I'm out every weekend

I think the bearings will get warm, what speed are you going to be running it at? blackburn mark or Jonathan will be the ones to ask as they use theirs! If it gets too hot I'll use the router it to cut a water cooling jacket for it

I'm not going to bother turning a groove for the circlip as I reckon that the grub screw (I'll drill a small recess in the shaft) will hold it as well as some locktite :)

Looknig forward to seeing pics of the finished spindle!