Re: [CAD_CAM_EDM_DRO] Re: Mounting Z axis DRO

John Dammeyer wrote:

> Never enough time or money. Here are two links to the keypanel for the
> first prototype. The box that goes around this will have larger 1/2"
> diameter holes and be the same thickness as the amount the extensions
> protrude from the heatsink panel (for the 3Amp 55V Micro-stepper drive).
>
> Over the box cover will be the plastic membrane with the switch markings.
> If I've done it right, depressing the plastic overlay will cause the buttons
> to be pressed.
>
> http://www.pacificsun.ca/~john/ELS/KEYPANEL.JPG
>
> http://www.pacificsun.ca/~john/ELS/KEYPANEL2.JPG
>
> For the home hobbiest who likes building tools etc. this makes for an
> inexpensive way of doing things. Just some time on the lathe with a parting
> tool and some simple turning. I did them on an under powered Unimat. With
> the extensions and the mounting of the LCD, the top of the LCD lines up
> nicely with the encoder MPG knob and the buttons which makes it all one flat
> surface.

John - I'm sure that single sided PCB's would be fine, with a separate
button booard. The DivisionMaster assembly does not cost a lot to put
together and is just two single sided PCB's - which cost a lot less to
manufacture.
http://home.lsces.co.uk/ModelEngineersDigitalWorkshop/DivisionMaster/DivisionmasterConstructionGuide.pdf

--
Lester Caine - G8HFL
-----------------------------
L.S.Caine Electronic Services - http://home.lsces.co.uk
Model Engineers Digital Workshop -
http://home.lsces.co.uk/ModelEngineersDigitalWorkshop/
Treasurer - Firebird Foundation Inc. - http://www.firebirdsql.org/index.php