Re: DRO boards

>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