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PSU Options for RAMPS 1.4 and Mega 2560 R3 (1 reply)

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Hi,

I'm building a 3DR Delta Printer with no heated bed and was looking for some advice over power options.

I was originally going to use an X5 but, with the unknown lead times, I'm impatient to get something working so have ordered a cheap RAMPS 1.4 + 2560 R3 with Full Graphic LCD kit to get started.

I have a nice compact Sony 19V 6.5A laptop power supply that I thought would be ideal for the X5. Is this still a sensible option for the RAMPS/Mega combo or am I better hacking an ATX PSU for now and using the Sony when the X5 arrives? I read that there is a diode modification for the RAMPs to make it accept the higher voltage but are there any drawbacks to the solution once this is done? The R3 spec says 20V maximum so I'd be pretty close to the edge with this one.

Wife Acceptance Factor is important with this build, and the laptop PSU looks a hell of a lot more tidy than an ATX, but I don't want to introduce problems for the sake of (temporary) appearance.

Thanks in advance.

adavidm

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