Communication solution on my own CNC Machine

Nah the Raspberry Pi can be used, quite successfully. Pretty sure that Ol Gene has been using a RPi3 successfully for years on his lathe, think he uses a 7i90 via SPI.
The 5 is a little rocket, shame it’s lacking an SPI driver.
As for the OP proposal, I’m skeptical. I also think he’s a little naive on what’s involved in “rolling you own” motion controller from scratch.

Did I get it right he’s also going to build his own servo motors as well ? That sounds like a serious engineering challenge, if he gets that done I’ll give him a right decent tip of my hat.

Sure. Dunno, can't chime on their potential I've never had one never will. Must be their repulsive branding and silly blackberry-success-wannabe stagnating in the back of my mind that makes them underperform lol Still a yt toy...

True. Correctly tapping into the RT of Lcnc ain't exactly easy at the first place, OP to find out the hard way soon enough. Much (muchhh) easier to go proprietary (ground up) with all this... if it would be me. Just who got the time for that though, what's the point/advantage.

Started messing with a Spartan dev board cos I had one on hand that was in the useful box. Plus I needed something to keep the black dog at bay.
Plus shipping from the US to Down Under almost doubles the price, plus we have a government who’s shutting down coal fired power stations hoping that wind and solar will take up the slack, thereby pushing up power prices and it flows onto to everywhere else, add to that a new excuse why petrol and diesel have gone thru the roof every 2 seconds.
If I could afford the 350k drive down to the capital I’d start a coup. Hahahaha

At least we haven’t been invaded, the snakes kinda protect us from that.

Spartans are killer, just not cheap anymore though (ironic). First functional project I made was on a spartan, a ov5640 door bell hack that was loool Got into the lattice during their debut, got whacked out from their free license, since moved to the M3 hard core + FPGA fabric "all-in-one-silicon" (GW1N, from Gowin). Check'em out, some seriouzpwr for a few bucks (search keyword "minimal schematic" in their doc center for putting up a dev board in 2hrs).

Leave DC alone man, they're lost enough chances they'll coup their own selves is more likely than not...

No fancy 15million gigabytes bs vivado dwloads required. Cortex core part can be written in eclipse/keil/whatever (for those of you familiar with MCU c/cpp), and the hdl's carried using their designer. Easiest, cleanest, fastest and most efficient free licensed IDE I know of. /A f f o r d a b l e, and it just freaking works. Raspi... [rolleyes], come on now @OP...

Ain’t no yank man.

Down Under = Australia.

No need to move away from the Spartan 6, my project is done.