[chbot] recommendations for inexpensive 2 axis "cnc"

[Andrew Errington]

Since this is a one-off I'd suggest acquiring someone else's junked 3D
printer and scavenging the X-Y platform mechanics.

Or, if that's not cheap enough, buy a US$100 new one:
https://www.aliexpress.com/item/4000535750845.html

Or, since I always enjoy any opportunity to promote the Cardboard CNC
by homofaciens:
https://www.homofaciens.de/technics-machines-cnc-v3-0_en.htm

Or, do you really need full X-Y coverage? If you have one piece P to
move from point A to point B a magnet on a screw thread driven by a
single motor might be sufficient, assuming a linear path with no
obstacles.

Andrew

On 16/06/2020, andrew dean <nzandydean at gmail.com> wrote:
> I was toying with a puzzle in an upcoming "war bunker" room where i wanted
> to have some pieces on a "war map" move on their own.  I was thinking of
> placing below the table an electromagnet on a pair of  motors driving the
> X/Y axis that would allow me to "grab" an object from a location" and
> "drag" it mysteriously and magically to another location.
>
> Does anybody have any personal recommendations for a motor/frame/controller
> setup with a documented arduino library of some kind (that also is fairly
> budget cause i'm cheap) that would allow range of motion roughly 500-600mm
> square?  accuracy isn't super critical.
>
> cheers!
> -andrew
>