Ted - 

Thanks for your advice. This helps very much. I have a few more questions below.


> The very first thing you need to do to make informed decisions 
> is to get as many datasheets as you can; 

Thanks for the sheet on the drivers.  Do you have any advice on how to locate 
info on the stepper motors?
I have googled for the steppers ( eastern air LA34BJK-P500 ) and havent found 
that model number anywhere.
The closest thing I found was at 
http://www.ni.com/devzone/advisors/motion/eastern.htm but that site does not 
include the correct model.


> Don't stop there - if there are limit switches, get info on them. 

no limit switches. (bummer)


> Spindle drive/controller, same thing. 
My spindle is only a PorterCable router. There is only a on off switch that is 
wired to the control panel - in the old controller it wasn't turned on or off 
by the computer. Someday I may change this - for now I want to see if anything 
works.


> Vacuum stuff? Ditto. 
The Vacuum runs on compresed air and just has a switch on the front like the 
router.  It was turned on and off manualy. 


> If you look at the system now, without that motion control board, 
> you have a standard 3 axis stepper system. 
> You can choose to buss the enables for each drive together as one,
> or keep them separate, or for testing just jumper them. 

OK.  Not sure what you mean here.  What should I consider when making this 
choice?


> Are there limit or home switches? Remote control for the spindle? Speed? 
> Vacuum platen/hold downs? Toolchanger?

Unfortunately no for most of this.  There is a switch for vacuum and for the 
router - but they are basic.  I may be able to add a relay for this some time 
later.


> The next decision you're going to make is whether to use 
> a motherboard/PCI parallel port for control, or 
> go with an external pulse generator board (PPMC/Mesa/etc).

I do have a PC with a parallel port and was planning on using that. I don't 
know what an external pulse generator board is? (or it that what I already 
have) 
Here is what I was planning on doing (is this the right approach?) :

1 - disconnect the cable from the board see: 
http://www.forsalesticker.com/bboard.jpg
    The one towards the left with the blue cable comming off.

2 - use a gender changer 
http://ecx.images-amazon.com/images/I/41RD21XB97L._SL500_AA300_.jpg 
    to be able to connect my parallel cable to my computer and to the router.
3 - figure out which wires are step / direction and mark them as such in 
stepConf
4 - say a prayer
5 - repeat step 4
6 - turn emc on and see if my axis can move

> Regardless, make sure you get some form of breakout 
> or opto-isolation board for protection.

sorry.  Now I need to ask the stupid questions - What is a breakout board or a 
opto-isolation board?  What do they do?
Do you have one you recommend?



Thanks

Andy

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