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Hi! Thank you for this post. I’m on Bigtreetech’s Aliexpress page, torn on driver choice. Can you help me decide if the 2130 spi drivers are more preferable to the 2208 uart in this application? Bigtree claims the 2130 adds a limit switch and blocking material detection. Are these features relevant to the kossel? Some say the 2208 adds more torque, would that be ideal? It looks like both are great; I’m more concerned with quality and reliability, the few dollars’ difference is negligible.

Also, they say that Marlin is the only firmware that uses the full potential of these chips, and smoothiware is more limited. What do you think?