E3D V6 Delta bed level switch mount

thingiverse

I wanted a better way to measure my bed levelness and set my z offset on my Anycubic Kossel Linear Plus with my E3d V6 hot end and effector. I had been using a thin film switch that fit onto the nozzle, but it started to get a little lose and I was afraid that it would fall off during a level routine. In my first attempt I used a tiny lever limit switch, like at the top of my towers, but this tiny switch was just too big. I buy these tiny switches on Ebay, they are SPST NO push button switches. I see them in my Arduino Nanos as a reset switch. They measure 3.5mm X 6mm. I don't think that they were meant for heavy use but they are tiny and cheap. Like 20 switches for a buck. Tiny being the prerequisite. Cheap is an added bonus. They have snap action so I think the repeatability should be pretty close, but I don't have a way to measure that. To assemble, I ran the wires through the block first, then soldered them to the switch. Tiny-tiny solder job. Be careful not to overheat the switch. I pushed the switch into the pocket. I didn't glue it in but I am thinking about it. Either silicone or super glue. I used a #4 sheet metal screw, 3/8" long to screw the 2 pieces together. It is kind of hard to set the switch position in relation to the nozzle. I assembled it and mounted it onto my E3D V6 heat block, then lowered the hot end close to the bed. I am doing this cold of course. I got it down to 1mm and adjusted the switch. I got it to 0mm and adjusted the switch. I used an ohm meter hooked up to the switch. I set it so the switch just gets activated when the nozzle gets to where I can slide a single sheet of paper under it with a little resistance, . The advantage of doing it this way is there is no z offset. The disadvantage is they are cheap and I don't know how long it will last, but for this price, who cares. These parts are small and you want them to be pretty strong so I would print them with at least 50% infill, if not 100%. I combined both parts together with a tiny brim between them, making it a one piece print for easy printing. I printed mine in PLA .2 layer 50% infill Happy leveling!