RE: [CAD_CAM_EDM_DRO] Re: Mounting Z axis DRO

Hi Lester,

I've gone surface mount since RHOS through hole parts are a lot harder to
find. Even then it's still a problem here in North America for some parts.

I'm sure some designer could probably make the ELS into a single sided board
but it won't be me.

The next version will have the ability to install a custom keyboard separate
from the main board. A single sided board that is just keys won't be to
tough to lay out so I'll probably do that too.

But, even so, there are the initial setup/tooling charges and making a
second set of keyboards still adds to the cost.

Thanks for posting the assembly manual. It was really helpful.

John Dammeyer



Wireless CAN with the CANRF module now available.
http://www.autoartisans.com/products
Automation Artisans Inc.
Ph. 1 250 544 4950

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Lester Caine
> Sent: Saturday, December 09, 2006 9:48 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: 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/Division
> Master/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. -
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