home built controller help

Hi all,i am building a controller along the lines of the one shown in
home shop machinist using a pmdx 131 board,3 212 geckos,40v 10 amp
power supply.

I have very limited info on the motors that i am using,such as voltage
and amperage,but 2 are nema 34 3.7 inches long 3.5 n/m,and one is nema
34 2.45 inches long 1.5 n/m,all are six wires.They were originally
getting 24 volts.

I have limited knowledge of electronics,so a step by step way of
testing motors would be nice and also how to configure the several
jumpers on the geckos and breakout board,and the current set
resistors.thanks in advance!