Diy Brushless Spindle

[Jonathan]

I'm working on one with two brushless motors, ATC and water/oil cooling. It will be a while until I post the build log, but my prototype for the ATC works. Having difficultly sourcing disc springs/Belleville washers though...

[Swarfing]

http://www.leespring.com/uk_index.asp?CountryCode=011

[njhussey]

Jonathan, I found these people http://www.bellevillesprings.com/bel...e-washers.html and was quoted 100 off D18842 for £15 (min order charge else would have been £10.33) with P&P £5.50.

Progress as far as I'm concerned has ground to a halt at the moment as our lathe at work is poorly at the moment...

[HankMcSpank]

DIY spindle porn...

http://www.dieselrc.com/projects/cncspindle/

[blackburn mark]

DIY spindle porn...

very posh !

a lot of work in one of those

[njhussey]

Far better than mine...wow has it been that long since I last looked at this....been too busy spending money on RC helis.

Bought a small boring bar and today in lunch bored the inside of the bearing holder out. Tomorrow will face off (parting tool not big enough) the part to the correct dims. Then just need enough Bellville washers to fill a 12mm gap...that offer of some washers still on Mark? ;)

Last bit is the cap then fit it all together...will take pics later!

[blackburn mark]

that offer of some washers still on Mark? ;)

itll cost you some pictures of where you are up to and how it works out with those 208 AC bearings

PM your address and the gap you have between your bearings

[njhussey]

Here you go Mark...pics from lunchtime's machining. The Ali has been in the bottom of a box of all my CNC bits from when I moved 2 months ago so is looking a bit worse for wear. If I can be bothered I'll skim the surfaces once it's done to tidy it up!

[Villacherman]

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?

[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!