Emergency stop punch button

thingiverse

I need to stop my machine tools quickly when working on them, so I installed a remote stop switch on my lathe that I grab and hold in my hand during critical operations. With just one press, the motor shuts down completely. My lathe and milling machine already have emergency stop buttons, but sometimes, especially while working on the lathe, I want to shut off the motor without moving my body or keeping a switch in my hand. Moreover, I didn't want a latching switch because it wouldn't allow me to restart the motor by pushing the "on" button again. An unexpected re-start could be very dangerous. To solve this issue, I designed a small box with an articulated lid that can fit a standard end-stop switch. The base has four 20 x 2 mm round neodymium magnets that let me position the switch near my hand (or foot/knee). This setup allows the switch to stay in place without needing any glue. I hope this design will be helpful to someone! To print the box, I used a Sethi3D printer with specific settings. For rafts, it doesn't matter what option is chosen because this design can accommodate any layer configuration. Supports are necessary to ensure proper adhesion during printing. The recommended resolution is 0.3 mm. I varied the infill to create a more complex structure within the box's walls and made some adjustments to account for layer detaching that typically occurs in ABS material when printing similar geometries. The lid, however, was printed using ABS for optimal strength. During assembly, I used M4 wood screws with enlarged holes to fit the design properly after drilling them into place using a standard drill bit.