Editing 3D Printers (section)

=== Power Supply ===
These are typically just Meanwell generic Chinesium power supplies. Depending on your printer, you may have a 12{{nbsp}}V system or a 24{{nbsp}}V system. 24{{nbsp}}V systems are generally used for printers that have larger motors and better heating elements. Doubling the voltage means halving the current needed, leading to cooler and longer lifespan for the control board. These are easy to replace as long as you can find one with the connector you need to pair it with your control board. 

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! Problem  !! Solution
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| Erratic behaviour || 
* Check the power supply. If excessive ripple has developed, this can cause the electronics to act up. Check both the main supply (12{{nbsp}}V or 24{{nbsp}}V) and the low side supply (5{{nbsp}}V) if present.
* Check for frayed wires that might have been rubbing against something. 
* Check stepper motor cables are seated correctly
* Check stepper motor drivers are seated correctly in the board (if you have removable driver PCBs)
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| System turning on and off mid-print || 
* Check voltage levels. If the levels are consistent, take a look at your connectors.
* Check motherboard's power input screw terminals for loose connections.  

* High current wires tend to get hot and may melt the connector housing plastic, causing the pins in the connector to lose connection. If this is the case, replace the connector. Don't play with this sort of thing, unless you want a house fire.
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