In article 5Qfzd.8273$113.6842@trndny03, says...
More than sufficient for the application. With the PS adjusted to 23V and
with a 8 ohm series resistor the voltage fluctuates between 13 and 16V at
the motor indicating a maximum current draw of just over 1A. And this
included loading the table with a 25lb weight (about 25 times what I'll be
using), stopping and starting etc..


The resistor isn't doing anything useful and may actually degrade the
performance of the system. As suggested earlier, you'd do better to
limit the motor's speed in software.

Ned Simmons