Quote Originally Posted by JW1977 View Post
Allright, it feels like im getting closer.
After some research i found that the Aliexpress price for the AM882 drivers are really good. I think im gonna go with them...
Yes slowly slowly it will start to sink in but can I just say it's not a good idea to buy the electronics first. Really they are the last thing you should be buying. Decided on what to buy now so you know dimensions etc but don't buy them as your just wasting warranty while they are sat on the bench. Build the frame first then and get rolling chassis then buy them electrics.

Quote Originally Posted by JW1977 View Post
Stepper motors are not hard to find. Maybe ill take Tumblebeers recommendation-link even there...
Those steppers Tumble linked to are fine but don't think all steppers are the same,.!! Even thou some will be same frame size or Nm rating there can be one important difference which plays a big part in performance.!! The Inductance rating.?
Cheap motors which you may find on Ebay etc can have very high inductance which affects the speed you'll get from them so check the spec before buying.

Quote Originally Posted by JW1977 View Post
Are there any alternatives with a good price/performance ratio?
There quite few cheaper motion control cards but they tend to use the USB port which can have problems with noise and lost connections. They also tend to be built using cheaper components so not quite as reliable or stable. Ethernet is by far the better choice and gives best performance for not much more money really so I'd fully recommend you stay away from USB based cards.

I've used most Motion control cards and I can tell you the best by far is the Cslabs products but they do tend to cost more money, thou you get what you pay for.
That said the PLCM cards are OK thou I've not used the plcm-e4 yet only the E3 but suspect it's much the same just with built in I/O board(BOB).
Then there's the ESS Smooth stepper from Warp9 in the US. The ESS just pips the PLCM cards in terms of performance ESP when used with a quality BOB like the PMDX 126.

Again like Digital drives you do to some degree get what you pay for and with pulse and signal handling being very important to performance and reliabilty then IMO it's worth spending that bit more in this area.