Case for M12864 transistor tester

thingiverse

This case fits the M12864 variant of the universal transistor and component tester, which was developed by Markus Frejek and later Karl-Heinz Kübbeler. A full description of the project is available at: http://mikrocontroller.net/articles/AVR_Transistortester The case includes a compartment for the battery and features a 14-pin ZIF test socket pinout printed on it, providing a convenient reference point. Note that this case is specifically designed to fit only the M12864 variant of the tester, as there are several different variants available in the market. To assemble the case, you will need four M3x15 countersunk screws, which should be threaded using an M3 tap for best results. It's essential to carefully route the battery wire as shown in the picture to avoid any potential issues. The knob is designed to fit snugly into place, requiring precise dimensions; a 5.6 mm inner diameter worked well in my configuration, but you may need to adjust this slightly depending on your specific setup. Before starting your print, thoroughly examine the pictures of the PCB to ensure that you have the correct version. Cases for other variants are available at http://www.thingiverse.com/thing:797733, http://www.thingiverse.com/thing:694790, and http://www.thingiverse.com/thing:1920077. Print Settings: Printer: Bukobot Rafts: No Supports: No Notes: The case should print without support and minimal cleanup is required. If warping becomes an issue, consider adding a brim to the top section, which should be printed upside-down.