Remarks

Comment:

2. Hand wheel:

Yes, it does matter. EMC currently keeps track not only of
coordinates
referenced to a part position, but also always keeps track of the
machine's
physical position, relative to the 'Home' position.
-----------
Yes, but remember that there is many ways to do it. The counters on
the stg board, will keep the count.
There is also a lot of different machines, and in some situations,
- I don't see why you could not do a homing command to find your
position again,
- but I guess I expressed myself badly. The absolute position
should not be affected, just the relative, - I was more thinking of
the actual position the servo calculation would read.

There is just too many machines - and not everything would fit a
particular setup. I would not know what and how it should be
implemented in a general setup.


Tracker ball: ( Elliot )

Yes, they are nice, but they often collect dirt, and that is a
problem. I wonder how wheel those image recognizers would work. (
Colored pots on the ball )



Keyboard: ( John Stevenson )

DIN plug::

Looking into the female socket, not the plug - I have this:

The notch on the top, 5 pins down: pin number is 1,4,2,5,3

------#
-----------
--3*------*1
---5*----*4
-----*2
( The reason for this numbering is that the first plugs had 3 pins,
then they added more pins in the standard - as far as I know )


1. CLK
2. DATA
3. /RESET
4. GND
5. +5V

PS/2:

------#------
-------------
---6*-#-*5----
--4*--#---*3--
-------------
---2*---*1

( the ## in center, is for the plastic tap )


1. DATA
2. n.c.
3. GND
4. +5V
5. CLK
6. n.c.

I do hope that this will be readable, but I have seen that something
is messing up spaces, so I used - instead.

Anyway, measure the +5 and ground to be certain that I have it
correct.



(Andrew: ) CAD, thank you - I will make use of these tips.


//ARNE