[sdiy] Silhouette Eins optical synthesizer
mob at mindspring.com
Sat Sep 4 19:50:23 CEST 2021
Wonder if something like this could be produced on a 3-D printer. (I
think I know the answer, but I don't have the printer.)
On 9/4/2021 12:45 PM, Mike Beauchamp wrote:
> On 9/4/21 8:13 AM, cheater cheater wrote:
>> I mean conceptually it's only a couple of switches (plus and minus),
>> maybe it has two interlocking rings of magnets that create a gray code
>> of magnetic fields. Then it's easy to pick that up with a hall sensor.
>> Easier to do than a precision manipulator for capacitive touch screens
>> I think.
> No - I ended up looking this up, it works pretty much how I guessed -
> just stuck to a touchscreen with 'fingers' underneath that touch
> against the screen. No magnets, no hall sensors.
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