Karcher SC5 Low water magnet disk

thingiverse

This can be used to replace the magnet in a Karcher SC5 steam cleaner. I came across one that stopped working, and this was the solution to the red light blinking. A few prototypes were made, and this was the first one that worked. 4 magnets was too heavy, and one magnet in the center wasn't sensed. This version has 2 magnets that are offset, so hopefully their weight allows one of the magnets to rest above the center of the disk Removing the old disk is not easy, and I had broke the plastic retainer to get it out. To seal the new magnet in, a piece of copper wire was bent to 90 degrees and put under a strong flame. Don't make it red hot though.It can melt and push through the plastic guides to make a retainer. You will need: 2x Neodymium magnets, Diam: 10mm. Height: 1.76mm Allowed space in the model: D= 10.2mm, H=2.6mm for tolerance. This is only just enough room for those magnets. The print must be paused at 3.2mm height, for putting in and sealing the magnets. Make sure they are fully inserted, and below the height the printhead can touch Printing: Infill = 5%. This must be able to float in water, and the plastic + magnet is surprisingly heavy. This can't handle 4 magnets, even at 10% infill To find the print height to pause at, look at the layer preview in your slicer. Then find the layer just before the magnet holes get sealed. This was layer 16 for me, with 0.2mm layer height. So for me, [layer 16] x [layer height 0.2mm] == 3.2mm. Pause the print before the next layer starts. Make sure this layer doesn't complete