Push button for FUXTEC FX-CT850 Folding Handcart

Replacement for the push button to adjust the push bar of a FUXTEC FX-CT850 Folding Handcart. The original is unfortunately broken and spare parts are currently not available. 

Print with at least 50% infill. Position the button upside down on the bed and print with support structures at 0.2mm layer height. For me, the grid support structures produced better results than the organic structures.