Charles
I had purchased a cheap caliper to do the job, but used a 4 inch horizontal scale instead. So I now have calipers by each machine. The only problem in using a caliper is you will need to tap holes in the back for the mounting and cut off the depth measuring slide. I think the backs of the caliper are not hardened so should be easy to drill and tap. Jaws are hardened and need to be cut off with a dremmel. Spare displays from ebay, item 250637429498 and make your own housing.
Malcolm
I don't suffer from insanity I enjoy it!
--- On Wed, 10/13/10, gandolfreefer <gandolfreefer@yahoo.com> wrote:
From: gandolfreefer <gandolfreefer@yahoo.com>
Subject: [gingery_machines] Re: Very long stroke DTI
To: gingery_machines@yahoogroups.com
Date: Wednesday, October 13, 2010, 2:49 AM
Malcolm, thanks for the photos. Very nicely done indeed; now I know how to do it myself. Did you start with one of those long digital calipers that go cheap? - it hadn't occurred to me one could be mounted onto a lathe to give a readout...this opens up all sorts of ideas.
Best, Charles
--- In gingery_machines@yahoogroups.com, "Malcolm" <mparkerlisberg@...> wrote:
>
> I have just uploaded some photos of my very long stroke digital DTI to my folder, Malc Parker-Lisberg, see:
> <http://groups.yahoo.com/group/gingery_machines/photos/album/464773070/pic/list>
>
> It is not quite finished, it needs an end fitting to hold a steel ball bearing to give consistant contact and a better bracket for the right hand end of the spring, but it works fine as it is now.
> The mounting brackets were cast in aluminium using lost foam.
>
> Malcolm
>
[Non-text portions of this message have been removed]
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