Re: Tom Kulaga's 4 axis DRO

http://www.mcs.net/~kulaga/dro.html
Dan
-----Original Message-----
From: clarkf <clarkf@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: Friday, May 21, 1999 1:18 AM
Subject: Re: [CAD_CAM_EDM_DRO] Tom Kulaga's 4 axis DRO

>From: clarkf <clarkf@...>
>
>
>
>Dan Mauch wrote:
>
>> From: "Dan Mauch" <dmauch@...>
>>
>> I have built Tom Kulaga's 2 axis DRO. I made a few changes. In stead of
>> using a db25 connector I used a 5 pin ramped locking header. That makes
>> running cables to the encoders a lot easier. Second , I did not wire wrap
>> it. I made a double sides ISA PC board using my home equipment. The board
>> did not work at first with Tom's software. The reason was that the

software

>> on the Tom's web site required a math co processor. I was Using a

486-33sx.

>> I bought a 486-66DX2 CPU and pluggged it in. The DRO worked GREAT! I am
>> using the US digital inear encoders . I emailed Tom about the problems

with

>> the CPU. He fixed those and now the software works great with either a SX

or

>> DX2. I plan to try it with a 386-16 soon.
>> In any case the program and Tom's schematic work great. However it would
>> have been better if it supported 4 axis. So I emailed Tom and he redid

the

>> software adding the third and fourth axis. The software will detect

whether

>> you have a 2 axis board or a four axis board. The setup is quite easy. In
>> any case I made a new pc board for a 4 axis systemn to plug into my ISA

slot

>> and it works great also. I can move the linear encoder as fast as I can

and

>> it keeps perfect track. I could only move two axis simultaneously but it
>> worked flawlessy.
>> I have talkd with Tom about a few more features like being able to use

the W

>> axis in degrees . He has agreed to make those changes and add a metric
>> conversion. Look for his revised software soon.
>> I am so impressed with the DRO 4 axis board that I would be willing to
>> spring for a batch of commercial made boards if there is enough interest.
>> The boards would cost about $16-$20 depending on quantity ordered and

other

>> factors. At $16-$20 a board plus the components, the electronic portion
>> would cost you about $70-$80 in parts not including the encoders. I can
>> also arrange for assembly if you aren't good with electronics or you just
>> don't have the time or would prefer an assembled and tested version.
>> Email me at dmauch@... if you are interested. I think I would need
>> about 25 orders to make it worth while and to keep the cost down. It

would

>> take 21 days to get the boards made.
>> Dan
>
>Hi All
>
>re the above
>
>Where do I get information re Tom Kulaga's 2 axis DRO and circuits and

software.

>
>Regards
>
>Frank
>
>
>
>
>------------------------------------------------------------------------
>Having difficulty getting "in synch" with list members?
>http://www.onelist.com
>Try ONElist's Shared Calendar to organize events, meetings and more!
>------------------------------------------------------------------------
>welcome to CAD_CAM_EDM_DRO@..., an unmodulated list for the

discussion of shop built systems in the above catagories.

>