Any USB/Ethernet controller suggestions?

[Desertboy]

What would be the point of buying 8A drivers to run 3A motors with? "Better" is a relative... is it 4-5 times better than the DQ542MA? It MUST be 4-5 times better to motivate the price difference, but I doubt that. Sure, with unlimited budget, no question about it, but I still doubt there is ANY benefit at all to use 8A drivers to run 3A motors. Also, the UC300ETH is not an "expensive" controller at all, quite the opposite, but again, even "expensive" is very relative.

Also, the OP asked about reliable recommendations, not just eBay guessing. It is pretty easy to list a bunch of expensive parts and claim they are "better" without describing what they are better at and why or how. Of course, very few really KNOWS because very few people actually tried many different drivers, controllers, bobs in all kind of combinations.

If you want to upgrade the controller and spent $5 on a BOB then you are out of pocket $5, if you want to upgrade the drivers you are out of pocket £120 for 4

https://www.ebay.co.uk/itm/Cnc-4-2A-...MAAOxyni9TFCPq

To me spend the cash on the AM882's for stall protection and use a cheap BOB then upgrade the electronics later when budget allows.

A cheap BOB is also compatible with mach 3 and linuxcnc so you can try both before locking yourself into a vendor without trying the software out.

It's basically double the cost for AM882's and then the extra cost for supplying 70v instead of 48v, you'll see most of us with 80v drivers make a PSU with transformer, rectifier and capacitors which adds another £70 making 4*AM882, PSU and BOB £320 which is to me the minimum spec for building a new router.

With a cheap PP BOB and a reasonable latency PC if you set microsteps to 8 (Or even 2 on slow PC) you'll get good enough performance to run at max speed on any home machine.