FT-5 2020 Z-Switch Adjust Z End Stop V2

thingiverse

I used the SN04 Z Adjuster HICTOP 3DP11, available at http://www.thingiverse.com/thing:1534152. I created a fixture that allows for fine adjustment of your Z endstop switch. Plans are underway to create another version with a photo interrupter switch to remove slop introduced by the microswitch. I've previously made one for an induction sensor, as seen at http://www.thingiverse.com/thing:2152001, but temperature inconsistencies caused by heat required a more involved setup before print. I used a spring that I cut down to about a third of its original length; the specific product is available at https://www.amazon.com/gp/product/B06XPG813G/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1. To use with the Z_Switch_Slide(RMOD)V3(NoCenterNut)(Repaired).stl, I recommend using an M3 75mm screw, available at https://www.amazon.com/gp/product/B01N91D3IV/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1. Additionally, a nylon lock nut is required; it can be found at https://www.amazon.com/uxcell-M3x0-5mm-Metric-Stainless-Insert/dp/B012T3KY8S/ref=sr_1_4?s=hi&ie=UTF8&qid=1492324582&sr=1-4&keywords=m3+nylon+nuts. If you choose to use a shorter screw, the Z_Switch_Slide(RMOD)V3(CenterNut)(Repaired).stl is recommended. You can find an M3 45mm screw at https://www.amazon.com/Alloy-Steel-Socket-Machine-Screw/dp/B00W97KPOS/ref=sr_1_2?s=hi&ie=UTF8&qid=1492324763&sr=1-2&keywords=m3+45mm+screw. A nut is also required and can be found at https://www.amazon.com/100Pcs-Female-Thread-Fastener-Silver/dp/B00GYS1SXU/ref=sr_1_1?s=hi&ie=UTF8&qid=1492324691&sr=1-1&keywords=m3+nuts. To install the spring, it's necessary to cut it down so that it can be compressed all the way for installation. After that, loosen it to adjust it properly. About one-third of the spring was cut off. To assemble the fixture, you'll need an M3 screw with the appropriate length; I used an M3 x 45mm screw. I also placed a M3 fender washer where the screw head turns to reduce wear on plastic and a M3 nut for the slide. In addition, two M5 x 10mm screws with two T-Nuts are required to attach to a 2020 rail. ABS plastic is recommended for this project, with a .2mm layer height. A video demonstrating the assembly process can be found at https://youtu.be/4dNhwOpfioQ.