stepper motors glitching

[John S]

Right 3 axis at 2 amps each is 6 amps but as they are never running at the same time, and believe it or not they don't draw 2 amps then the rule of thumb is 70 % of total. However to give a bit of over head we'll say 6 amps at 30 -33 volts.

So we select a transformer in this case from RS because I'm idle and they deliver for free.
6 Amp at 25 volts #223-8207 £ 27.82

Next we need a capacitor 10,000uF 63 volt working #255-0232 £10.44

Then a bridge rectifier 15 amp 50 volt working #515-5559 £1.50

Now because it is smoothed by the capacitor and converted into DC that 25 volts now becomes 25 x 1.414 = 35.5 volts.

All these components above are either screw fixing or you crimp on spade terminals, no soldering needed.