Luke11CNC Build Log ,I'm so naïve

[luke11cnc]

oops bought the wrong power supply (only 50w) and I need 70w

so this is up for sale £10.00 but it's not come yet so you will have to wait, just like me

http://www.ebay.co.uk/itm/1505921946...84.m1439.l2649

James

[Jonathan]

You want 70 volts, not watts! About 500 watts... it's going to cost more than £12.99 I'm afraid. I'm using a 500VA toroidal transformer with two 25V outputs in series - that gets just under (25+25)*2^0.5 = 70.7V