Advice on component selection.

PCW wrote:

In my experience running flash videos on youtube is about the worst RT torture test

The screen savers in xfce was kinda gnarly as well.. =))

After a 9 hours the max jitter upper value got to 45338 and the lower where about the same.
Guessing its still a go. Even tho the whole box lagged horribly.

I will prob. find a way to get it to run 2.7 instead of 2.6 soonish.. 2.8 when compiled it from master was buggy.. alot..

So time to decide for main card, 7i43 or 7i90 - both seems like a valid choice. Even tho the former seems to come in like 4 versions? *What to choooose*

Only reason i can see is that the 7i90 doesnt seem to have support in the stable 2.6.5 release of linuxcnc, atleast not in the wizard.. can prob. be manually configured.. if i figure out where the hell the config files go and how they should be formatted.
Been finding the wiki and documentation outdated on numerous occasions now - its a tad bit frustrating from time to time. =)

Uhm, isnt the wiki based upon PHP and MySQL.. would be small issue, reindexing everything with a seperate script and order it by createdate and last edited and filter that out / move / delete whatever. (Say the guy who works as web systems developer for a living )

And yeah the docs is where i live atm. - realizing i would need to upgrade the 2.6.5 to the 2.7.0-pre1 (or what its called) on the ISO wheezy image that i downloaded and installed. Making that bugger boot over my PXE server was "!"#%%! - but got it to work finally.. (have no usb sticks or cdrom drives lying around)

But well, 7i90 is maybe the future then. and i save quite alot of cash going that route.. with a 7i48 and 7i33TA card i imagine. *fiddling through the mesa store*

So motors and drivers; aquired.

I dont think i realized how big 130mm framed motors is when they are at 1.5kW



Seems to be good quality tho, and got cables and connectors for them as well, ran me about 650-700 usd for all three of them and cables.
Got me drivers from Granite devices (Argons)..

Now i need controller cards - and figure out somebody that can laser cut a shit ton of sheet metal for me. =)

The encodes is a Quadrature encoder (2500ppr) with a 15pin socket connector.

But well if Argons support stepper motor control for a servo. Wouldnt that be the neatest of trick anyway?
I was actually thinking going with a anlog interface 10V - which seems a tad bit old school.
But is maaaybe the easiest route?!