Customisable Trolley / Cart Key

thingiverse

The creator on Thingiverse is currently down for maintenance as of March 29, 2018. You can follow these instructions to use an offline version within OpenSCAD. https://www.youtube.com/watch?v=knKgMEod11U **Updates:** * On March 26, 2018, zip files containing many more sample keys for multiple currencies were added. * On March 25, 2018, a sweeping curve style coin head was added. (See the green items in the first picture) You can fully customize this shopping trolley / shopping cart / shopping buggy key: * The coin size and thickness * The handle length * The hole in the handle * Optional text on the handle * Optional cutout of coin end This allows you to get a trolley / cart without leaving your coin stuck in there. Example: https://www.youtube.com/watch?v=3kaP8CCsd-Y **If the customizer is not working, please download the file and edit in OpenSCAD. You can edit the parameters that way** You can download OpenSCAD at http://www.openscad.org/ *Please let me know of any other commonly used coins and I will add them.* Obviously, I haven't been able to try most of these as they are from all around the world. **Please test for yourself before printing a large amount of these.** Pre-exported keys included in the download for the following: * British Pound Coin * 1 Euro * Australian Dollar * Australian $2 * Canadian Dollar * Canadian Quarter * US Dollar * US Quarter # Configuration Information [Coin] **The size and thickness of the coin.** coin_size = 20; coin_thickness = 4; [Handle] **The length of the handle from the center of the coin head to the center of a second circle at the end.** handle_length = 36; **The handle width ending at the head - this is a circle/cylinder which is 'lofted' with another to form the handle shape. This allows a varying width handle.** handle_width1 = 6; handle_width2 = 13; [Keyring Hole] **The keyring hole is formed by two circles/cylinders lofted together. Zero distance between them will give a circular hole. The distance is between the centrepoint of two circles. The size of the circles is determined by the border thickness rather than circle diameter.** keyring_hole_width = 5; handle_cutout_hole_diameter1 = 7; handle_cutout_hole_diameter2 = 7; [Handle Text] **If you want text on the handle, enable it here. Can be useful if you need two different sized keys on the same keyring.** show_text = "yes"; text = "£1"; font = "Helvetica Neue:style=Bold"; font_size = 6; text_x = 16; text_y = -3; text_height = 0.4; [Smoothing] **Smoothness of curves This is the $fn parameter, put here so it can be edited in the customizer UI on thingiverse.** smoothness = 200;