Re: DRO boards

No ,you have not sent me the rotary axis version yet. I'd be delighted to
test it. I was over a friends house yesterday. He has a 4 axis CNC with a
rotary table. The software for the CNC ( maxnc) does linear moves on the A
axis. We figured out how to convert it to degrees. That sure would have been
nice to have the 4 th axis in degrees and why I know that the DR0 should
have that feature.
As Always, I'll get prompt feed back to you.
Dan

-----Original Message-----
From: Tom Kulaga <tkulaga@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: Saturday, May 29, 1999 10:35 AM
Subject: Re: [CAD_CAM_EDM_DRO] DRO boards

>From: Tom Kulaga <tkulaga@...>
>
>>I have placed the order for a batch of Printed circuit boards for the -2/4
>>axis DRO boards. I should have them in 21 days. The quoted price per board
>>plus the $200 tooling charge makes each board cost ~$15-$16 each. Not bad.
>>It should make the assembly really easy.
>>In any case I have a list of those that have ordered boards. They will

have

>>first shot at them. Right now I have 35 boards on order which gives a few
>>spares.
>
>Wow, 15-16 bucks for the board? That's pretty good. The encoder
>chips from US Digital are only $23 each, the 74LS138's are less than
>50 cents, as are the capacitors, and sockets aren't too expensive
>from Jameco or Digikey... How much to get the connector
>parts you're using? I know you said you changed from the ones that I
>chose. Add in linear encoders and reader heads for around 50-60 bucks
>per axis, and this is looking pretty economical. I had expected
>around $50 for the PCB.
>
>> Tom Kulaga gets a free board for coming up with the concept, the
>>software and the schematic.
>
>Hey, thanks! I guess this is a bribe to keep me updating it, huh? ;)
>Speaking of which, did I send you the version with rotary table and
>metric support? I don't have a four axis board here, so I was hoping
>you could test it for me before I post it on the webpage.
>
>-Tom Kulaga
>
>
>
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