[Noisebridge-discuss] [sudo-discuss] Sourcing <= 50 micrometer ETFE film

Jake jake at spaz.org
Tue Aug 1 04:12:16 UTC 2017

i don't remember but it's a pretty powerful motor, so probably as many as you
want.  it's a heavy-duty assembly, the hollow shaft to the vacuum plate has its
own pair of bearings supporting it, independant of the motor itself.  So i
think the vacuum grip to your board (and properly centering it on the center of
mass) is your limiting factor in spinning it fast.


On Mon, 31 Jul 2017, Marc Juul wrote:

> On Mon, Jul 31, 2017 at 9:06 PM, Jake <jake at spaz.org> wrote:
>> i have a device which is a motorized vacuum-backed surface which you can
>> use
>> for spin-coating.  you place the item with its center of gravity on the
>> axis
>> and then pull a vacuum, and then you can power the motor and spin the
>> thing to
>> do spin-coating.  It was originally for orienting silicon wafers so it's
>> enclosed in a stainless steel housing so it can be cleaned easily.
> Very useful! How many RPMs?
> -- 
> marc/juul

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