Tandy/TRS-80 Model 100 battery cover

thingiverse

Battery cover for the Tandy 100: It's a precise fit because I designed it to print in PLA with extra plastic at all stress points to prevent breakage under normal use. If that's okay with you, you can print a replacement battery door yourself. Print Settings: Printer: Monoprice Maker Architect Rafts: No Supports: No Infill: 10% unless your printer tries to infill the catches, which should be more like 100% for structural integrity. Try 10 and see if it works; the catches are probably too small to be infilled anywhere. Notes: I'm not sure about rafts. I used the "skirt" option in Slic3r, which worked fine for me. If it peels up around the edges, add rafts. Built-in supports are sufficient. Post-Printing: Be very careful when trimming supports out because rear catches can be fragile and may pry apart from the door if you've got a big enough knife. Design Process: I took measurements of an actual battery door from another unit, threw them at OpenSCAD, and created a quick mock-up. After that, it was just a matter of measuring actual fit and rigidity of the part, and adding plastic until clips held up when snapping on and off the system.