Version 2 is out. Jump to the bottom of the page to read more.
Keep in mind that this may not tolerate rage or violence bursts and might break. I'm using PLA and it seems to "work" just fine.
That said, in addition to printed files you will need:
A USB keyboard circuit board (obviously). I used HP KU-0841 but basically any USB keyboard that have a working button will do
Screws and nuts:
M3 screws, mostly 12 mm and 16 mm long... sometimes length matters, sometimes not
M3 nuts
M4x20 mm screw (preferably slightly longer)
M4 nut (I prefer lock nut, but it's not necessary)
M4x40 mm screw partially without threads (dunno whats the real name of those) if using vertical spring method. Smooth part of the screw allows the spring compress freely
A spring. Diameter 5-8 mm, unsure about length and thickness as it depends on how much force you want to use to move the arm/handle. I use ~5.8 mm x 40 mm push spring with a pull spring bought from local hardware store (Biltema)
OR
If springs are not available for you, you could try a rubber band instead
Main switch:
Nickel strip (approx. 4 mm wide) or similar metal stuff for printable switch body
OR
Limit contact switch from eBay or so. The switch should stay in place with just one screw, but you can use two. Note: you probably need to drill bigger holes on the switch. Use 3 mm drill bit to do it, bigger could damage it
Optional:
Tools:
| arm.stl | 65.7KB | |
| baseplate.stl | 744.7KB | |
| CoverA.stl | 579.3KB | |
| CoverB-Hatch.stl | 4.2KB | |
| CoverB.stl | 258.6KB | |
| grip-solid.stl | 2.2MB | |
| grip.stl | 2.3MB | |
| v2-Arm.stl | 280.8KB | |
| v2-Baseplate.stl | 2.2MB | |
| v2-CoverA.stl | 230.6KB | |
| v2-CoverB-Hatch.stl | 218.8KB | |
| v2-CoverB.stl | 127.0KB | |
| v2-Grip.stl | 2.5MB | |
| v2-Grip_btn_cover.stl | 36.4KB | |
| v2-Wireholeclosethingy.stl | 26.3KB |
