Homebrew PCBs

soffee83 wrote:

>What would anyone guess does have a "quiet" motor for something like 
>this? I think even my Dremel sounds like a swarm of bees on the higher 
>settings. It seems risky on motor wear running for the duration of 
>longer PCB drilling too. Those big motors here are about as quiet as 
>my press (good).
>
>  
>

  1st, the Walmart generic I have that's grey is better than a stock 
dremel, for smoothness and sound level and play in general.  Good for 
$18 I paid.

  2nd, brushless helps.  Brushless fan motors are good here, take the 
fan off and most are very quiet running.  Need to find one with good 
high speed so will have bearings that can handle it, or buy VHQ 
replacement bearings for one.  I have several candidates on hand, but so 
far the Dremel isn't yet annoying enough to drive me to doing it..  
Leave the Dremel on low speed, come back 3X later, your stuff is still 
cut/drilled, yet you had far less peak noise..  :)

Alan