Compact Morse iambic paddle

thingiverse

Compact design, easy to build, magnetic baseplate with rubber pads seats. • Compact design • Adjustable clearance • Magnetic baseplate option with non-slip rubber pads • Easy to print and to build; few standard and widely available parts (2x DIP P4 Normally Open push-buttons, 5x M3x16mm screws, 2x M3x5mm grains, 2x Ø12x2mm neodymium magnets, 4x Ø8x2mm rubber pads) I found several projects on the web but I was looking for something with few parts , inexpensive and easy to built. The assembly has only four 3D printed parts (2 paddles, base, cover, baseplate) that can be printed without supports (look at the picture of my buildplate example). The holes are designed so the screws will be self treading. The clearance between the paddles noses and the buttons can be adjusted to zero with the 2 threaded grains (or also short M3 screws) placed in the rear zone of each lever. The adjustment can be done also on the assembled product thanks to the rear holes. The sliding friction of the paddles can be adjusted with 2 screws on the base, I added some Ballistol oil on friction surfaces. The buttons must be placed in its seats in the following way: bend two legs horizontally, slide the button throught the seat in the base, bend down (90°) the two legs. The button now is trapped between the lever nose and the base, the clearance can be adjusted as described above. I chosen that button switch instead of the classic metal-to-metal contact screws beacuse these buttons are widely available on the market, they ensure long term and reliable switching and if needed are available also with IP dustrproof, waterproof rating. The baseplate include two seats for neodymium magnets (optional if you like the magnetic effect) with size up to 12mm (diameter) and 2 mm (height), the magnets can be glued. The base includes two small slots for small zip-tie, to guarantee the cable retention. A version with 3.5mm jack socket will be available in future. Have a look also at my other project of compact Morse staight key! Follow me on Instagram and Facebook! Likes and comments are really appreciated!