Re: Update to DRO+ website

I finally got a chance to test the backlash compensation. I had to loosen a
thrust collar to obtain some backlash but I loosen the thrust bearing
assembly to give me .015 backlash on the X axis. I modified the dro.cfg file
by changing the .000 for the X axis backlash to .015. It didn't seem to work
correctly until I realized that it was applying the b/l comp in the wrong
direction. Not letting any grass grow under my feet, I went back to the
dro.cfg file and place a -.015 for the x axis B/L. I then reset my dial
indicator and check it over an inch in both directions. It worked perfect.
So remember if the backlash compensation does work properly when you set up
your system to change the sign to a minus. Otherwise I have assembled
several boards now and they all work fine. One other point to remember is
that the axis version will not work with the dro.cfg file for the 4 axis
version. Here are what mine looking like.


2 axis 4 axis comments
544 544 decimal port address for the second set of
pins on J3
4000 4000 4 times the number of counts on the encoder
1000
4000 4000 ditto
.015 4000
.000 4000
-.015
.000
.002
.000
One feature I would like to Tom to add would be to manually enter the
location for an axis.

Dan
-----Original Message-----
From: Tom Kulaga <tkulaga@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: Saturday, July 03, 1999 2:13 PM
Subject: [CAD_CAM_EDM_DRO] Update to DRO+ website

>From: Tom Kulaga <tkulaga@...>
>
>Whew! I just got done updating the website. Lots of visual
>changes, including a full rewrite of the site. Hope you like the
>new layout. Take a look at http://www.mcs.net/~kulaga/dro.html
>and let me know what you think.
>
>I also posted the newest version of the software. It includes:
>
> - Metric/english units
> - Autodetect and support for 4 axis boards (4th axis in degrees)
> - Backlash compensation! Finally!
>
>For those of you who bought the etched board that Dan Mauch was
>selling, he sent them out, so you should have them soon. I got
>mine, and boy, it's nice. He also included a good set of
>instructions with it. You'll need the latest software to use his
>board, so go get it. If there's anyone out there who didn't get
>a board but would still like one, he's got a few extras as of the
>last time I talked with him. Email him and ask. His contact info
>is on my website.
>
>Now that the site is done, I'm going back to messing with the
>software. Any suggestions are gratefully accepted. The backlash
>compensation has not been fully tested, so those of you who use
>rotary encoders, try it out and give me feedback. I haven't
>written a good tutorial on how to measure and set it up, so email
>me and we'll hash things out.
>
>Thanks to all of you who have given feedback, support, or help.
>It really keeps me going, especially when the hobby stuff gets
>buried under real life.
>
>-Tom Kulaga
>
>
>
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