Hi Guys
I havedesigned and made a brushless spindle as well but my design is a big biggerthan most (overkill really) it has a FAG angular contact double row on thebottom and FAG standard bearing on the top with a 20mm shank ER16 collet chuckfrom ebay.

I waswondering what people use for the power supply as I fund that my 15Amp batterycharger doesn’t provide enough power.
The picture shows a drill chuck but that is being held by the ER16 chuck because i did not have the right size collet
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Joe