I was wondering that if the drivers on the TinyG board are 2.5a limit, then how does the Y axis on an OX style CNC work properly when motors are wired in parallel and both are 2.8a motors?? It would seem that they would be seriously under powered. Any suggestions? Maybe I am missing/not understanding something.
2.5a Y axis limit?
From the original Synthetos forum (2011–2025)
Missing something - no, you are not.
tinyG is predominately used for 4 motor (X, Y, Yr,Z) setups so each motor gets a driver.
Some folks move to using external drivers.
Most NEMA23s generate good torque at 1A or less(each).
But if you want your setup to have max drive capability, individual drivers and good thermal handling (heat sinks, fans) highly recommended.
Thanks for the reply. How do you go about using external drivers?
Here is a good place to start the discussion
https://github.com/synthetos/TinyG/wiki/TinyG-Using-External-Drivers
This topic is from the original forum (November 2015). Your reply starts a new discussion linked to it.
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