Anycubic Predator Magnetic Rods
thingiverse
40x6mm https://www.roboter-bausatz.de/p/carbon-rohr-40-cm 6x12mm Magnets https://www.ebay.de/itm/200817005980 can be glued with epoxy, maybe even superglue works. rod lenght should be around 445mm - but i recommend measure it by yourself I printed it with formfutura premium PLA, seems to be stronger then usual PLA. I also tested it with ABS, what i advide against (poor layer adhesion) I think PETG is the way to go here
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