DIP-Clip for In-Circuit Programming (and ESP8266)

thingiverse

ESP-02 uses a standard 2.54mm pitch, featuring seven pins per side. In contrast, ESP-03 and ESP-07 utilize an 8-pin configuration on each side but at a narrower 2.0mm pitch. Each of these modules has its own distinct width. For users requiring the footprint of ESP-12 or ESP-14, it is recommended to use DipClipESP8266_07.stl. Despite having the same dimensions as ESP-07, they have one less side with pins, which is not necessary for programming purposes. Printing with PLA requires some adjustments. To improve usability, I've made the spring thinner and lengthened its handle behind the spring. This design change aims to make clamp usage easier. For 2mm pitch versions, an arm width of 8xew has been used instead of the standard 6xew for enhanced strength. Printing with PET involves a slightly different approach due to its distinct material properties. Unlike PLA, which often breaks during bending, PET can undergo more elastic deformation before failure. This characteristic allows us to stiffen the pivot spring by adjusting the $pivm multiplier to 1.5 or even 2.0. Generating multiple STL variants is a feature that utilizes a Makefile to produce separate files from a single parametric SCAD file. All modules in dipclip.scad with a comment // AUTO_MAKE_STL are generated as top-level modules in individual STL files. The Makefile also demonstrates how openSCAD allows $ special variables to be passed into modules without declaring them as parameters. This capability is utilized to offer a choice of OPTS for ABS, PLA, and PET, which affect the $pivm value. To regenerate all included STL files, users can run 'make clean; make'.