12-volt Jewellery Sander Lionel was asked by a friend to make him a miniature electric sander for shaping and smoothing small items of homemade jewellery. The jewellery sander in these photos was made from a recycled fan from a computer, mounted on a block of pine with a plastic box housing a socket to receive 12 volts from a conventional plug-pack.  A plastic disk cemented to the fan blades has been covered with a disk of fine sandpaper.  (Lionel said that this idea was not original with him.) The fan blade underneath was left intact as the fan helps to suck away from the surface the fine particles of waste material that sanding inevitably produces. Photo and description courtesy of Lionel Hartley. Posted with Lionel's permission by The Friends of Lionel Hartley .

Three-monitor Presentation Screen . This portable system was used occasionally by Lionel for family-life seminars in Nerang (Qld).  It consists of a metal stand on wheels with a very large screen on one side (facing the audience) and on the back is a video monitor showing the presenter the view from a recording video camera, and a second screen (the lower one) that is a clone of the large screen to show the presenter what the audience is seeing on the big screen. If the presentation is not being filmed, then the video monitor, which has a built-in DVD player, can be used to screen a video which is able to be cloned on the large screen. All the connections for power, video, computer audio, etc. are all centred in one place at the back to save having a tangle of cables in all directions. Photos and description courtesy of Lionel Hartley.  Posted with Lionel's permission by The Friends of Lionel Hartley . Update: Unfortunately, this was completely destroyed by a deliberate act of...

  Gas bottle lifter and stand Lionel made this  Gas bottle lifter and stand to use a 9kg bottle in place of a 45 or 90kg one. It is of all metal construction with a block & tackle lifting mechanism for the bottle. Photos and description courtesy of Lionel Hartley. Published with Lionel's permission by The Friends of Lionel Hartley .