Power Cord  Cable Strain Relief
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Power Cord / Cable Strain Relief

I feared yanking the power cord hard enough to pull the wired from the power supply Mounts in the the 2020 extrusion channel nicely with a M3x10 screw and a dropin M3 Tnut ...

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Power Cord / Cable Strain Relief alternatives
Cable Saver
RascalHoudi
Prusa mini Xaxis strain relief
Printing Programmer