Sofirn HS10 16340 headmount for running

thingiverse

READ THIS FIRST BEFORE PRINTING I designed this headmount for the Sofirn HS10, because the original one is made from rubber and not suitable for running. It is very wobbly and the light shakes in front of you. I have printed and tested both solutions: one part and two-part, where plate and clip are seperated. Deciding: Both are not perfect: The single-part has to be printed on the side for the stability of the clip and after printing you have to be very careful removing the supports, not to break it. Therefore the one-part has more than double thickness (2.4mm vs 1mm). The two part is half the weight, but has to be glued (I used two component glue) and could break while running and damage your lamp. So decide by your goals and means. Printing: Print the parts like oriented by me (two-part and clip on side, plate flat on the ground). Adapting to your head: After the print heat the plate up using a heating gun, cover your head with a thin cloth like a running cap or a buff and maybe use a glove and when it is soft but not molten press it against your forehead for ten to twenty seconds to adapt the curvature to your head. If you have a heating gun, be extremley careful not to melt it completly. If you only have a hairdryer as heatsource, I think you would have to print it in PLA, to get it soft, maybe a printers headbed will work also. I used PETG and a heatgun. Gluing (if two-part): The resulting rounded headplate will touch the clip's plate only with a small part of the surface, so I used 2 component glue with a small skirt of modelling clay to prevent the glue from running down. I have used it a few times now and it is very light but also stiff, did not break and I used the original Sofirn strap. You could also add an overhead strap for additional assistance. Putting strap in: The original Sofirn strap works, but the holes are very tight for the strap's plastic latches. It is harder with the one-part solution, because it does not flex.