VOID PANTOGRAPH CREATION STEPS FREE
For each I used 25mm screws insertedįrom below with a nut and a wing nut locked together to permit free arm movement, but not excessive looseness)įor the anchor point, I used a 40mm screw inserted into Arm A from above and locked to the arm with one nut. Pivots 3 and 4 - These are the moveable pivots that determine the magnification.Screw to make a (not too sharp!) tracing point. I used a 40mm long screw inserted from the top, with one nut locking it to Arm D,Īnd two nuts locked together below Arm C to permit free arm movement, but not excessive looseness). Pivot 1 - Screw, cut to length, with dome nut locked in place to give free arm movement, but not excessive looseness).The arms are assembled as shown using the screws, with various nuts, dome nuts and wing nuts: Provide the accuracy of the final pantograph to make consistent enlargements. The most important part here is toĪccurately mark the location for the holes and ensure that they are not oversized and that you drill them in the right place.Įnsuring that they are drilled in the middle of the arm and correctly spaced will So was able to gang drill all four arms at the same time. I used 5/32 inch because of the variety of nuts available but an equivalent metric size may be used if available.Ī hand held electric drill can be used to make the holes, but I had access to a drill press, The screws, nuts, dome nuts and wing nuts were all 5/32 inch and cost about $3 per pantograph. It was long enough to make two pantographs. The aluminium bar used was 12mm wide by 3mm thick, purchased in a 2.4m length from the local hardware store for about $5.50.
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Larger and the hole spacing also proportionately increased.Īlternatively this size can be used by magnifying the picture one section at a time. If you desire copying larger pictures the dimensions of the four “arms” must be made proportionately The design is based upon 30cm long arms and is capable of doubling a 15cm picture or magnifying an 8cm picture by 5. It could equally have been screwed in place if you don’t have access to a pop rivet gun. I used a pencil holder that I made by bending a surplus piece of aluminiumīar riveted to one arm. The four key pieces (the arms) are held together by a few round headed The major components were made quite easily from aluminium bar using nothing more than a hacksaw and drill,Īnd a file to smooth off any burrs. To be obtained by simply relocating two screws, cost just $6 in materials and took It enables magnifications of 2, 3, 4 and 5 It makes a great educational toy for families with children, or for people who are intoĬraft activities like patchwork, woodworking, modelling, etc.īelow, my Dad describes the design he built.
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A Pantograph is a drawing aid that simplifies the enlarged copying of pictures or figures.