Re: DRO boards

On Tue, 25 May 1999 19:44:48 -0700, you wrote:

>From: Tom Kulaga <tkulaga@...>
>
>>Subject: Re: DRO boards.
>>
>>I have gotten enough email to decide to go ahead and order the boards for
>>the 4 axis DRO. I will have 30 made even tho I only have orders for 20.
>>There will be other newsgroups that will be interested.
>>Dan
>
>Have you considered getting together a group purchase at US Digital?
>They do offer pretty decent discounts for volume purchases, and
>considering you're looking at 20-30 LS7266 chips, you could save
>yourselves a couple of bucks. In fact, if you decide to go that
>route, put me down for 1 of those chips. :)
>
>Of course, it's a major hassle handling the money side of this, so if
>you'd rather not, I for one understand completely.
>

Tom ,

From what I can see of this project using the US Digital Linear strips is the
best option.
I would like to use one for a lathe application but bearing in mind that you
need 1/2 switching even an application that can get 0.001" on a miller will be
reduced to 0.002" on a lathe.
Am I right on this one??
I read the US Digital web site page and they advertise as making custom
resolutions up. Has anybody asked them for something that will run with this
package to give something like 0.005" resolution ??

Will there be a keyboard input option on your final project.
So that you will be able to key in a size and count down to zero.
I saw an option the other day on the web that uses rotary encoders, might give
some people food for thought. Site is at http://www.bwelectronics.co.uk

Regards,
John Stevenson
Nottingham, England