Thanks Grant,
The pictures are excellent and I can relate all you say to the
pictures - being as accurate with the y-axis has its place just as
much as depth. Much appreciated - this is definitely something I must
pursue. Thanks again.
On Dec 14, 1:14 pm, "Grant Lasson" <grant.las...@comcast.net> wrote:
> Craig asked if I could post pictures of the y-axis digital scale I added to
> my ornamental mill. So, here they are.
>
> Adding a y-axis digital scale was one of the easiest upgrades I've made to
> my 1000EX. I took an aluminum angle with the same depth as the rail and
> attached it to the non-drive side y-axis rail using the standard locking
> tabs and brass thumb nuts. I created a threaded post on the locking tab by
> inserting a socket head screw backwards from the way it would normally be
> viewed. There is just enough room for the socket head to fit inside the
> rail. The final effect here is that the aluminum angle iron can be removed
> without tools. I also rounded the outside corners of the angle iron with a
> file.
>
> All of the pertinent assembly details are visible in picture IMG_1915 which
> is an end view.
>
> I used some available plywood as spacers to add the appropriate elevation to
> the digital scale. I think it was left over from drawer bottoms. Attaching
> the digital scale was easy. Just tap the angle iron with the appropriate
> thread size and use the screws to attach. It's important that the scale be
> parallel but it's not difficult to get setup.
>
> Attaching the scale to the moving carriage was also pretty simple. I didn't
> want a big ugly bracket ("BUG"), so I bought some Lexan and machined it as
> my bracket. The best view of it is in IMG_1922. I shaped it to fit the
> existing holes on the carriage and used slightly longer screws to attach.
> Under normal operation, the bracket is almost invisible--I like the clean
> look.
>
> The digital scale has four threaded screw holes in the back. These are tiny
> (4mm?) screws that might take some looking to find. The length must be just
> right because if they're too long, the scale won't slide. Once you've got
> that done, you're ready to go.
>
> A few thoughts on the choice of digital scale. I used a 16" scale that
> measures almost 21" end-to-end. I did that so I could use the full width of
> the mill without restraint. I also made sure that I got a "vertical" reading
> scale because I didn't want to keep tilting my head to read it. Finally and
> most importantly--make sure the scale you get has an incremental and an
> absolute mode. Some scales have only absolute (like the first one I bought
> for my Woodrat). On the y-axis, incremental will be your best friend but you
> won't want to lose your absolute reference point.
>
> I got the digital scale off eBay. No warranty or anybody to stand behind it.
> On the other hand, it's the same model that Legacy gave me with the z-axis
> and I got it for about 1/3rd of what Legacy charges for the 6" model. I
> think the seller was "100Watt"
>
> Good luck,
>
> Grant
>
> IMG_1915_small.jpg
> 162KViewDownload
>
> IMG_1916_small.jpg
> 119KViewDownload
>
> IMG_1917_small.jpg
> 190KViewDownload
>
> IMG_1918_small.jpg
> 219KViewDownload
>
> IMG_1919_small.jpg
> 98KViewDownload
>
> IMG_1920_small.jpg
> 96KViewDownload
>
> IMG_1921_small.jpg
> 242KViewDownload
>
> IMG_1922_small.jpg
> 185KViewDownload
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