Caliper jaw extensions

thingiverse

I designed these long jaws to measure the center of a large cylinder accurately. The extensions slide snugly into place and shouldn't wobble at all when closed. To ensure precision, I "zeroed" out the jaws and got started. On my caliper, one jaw was a 15-degree wedge while the other was 16 degrees, so I created two distinct jaw files to match. The angle may vary depending on how much material needs to be removed to make the jaws perfectly square and flat. These extensions may not fit your caliper precisely, but they work well if used carefully. Avoid applying too much pressure or something will bend or shift. They're a significant improvement over nothing, in my opinion. Metric files are available. A note about printing with the Afinia: default settings have a 30-degree support angle. The interior of the deep hole has a roof with an incline greater than 30 degrees, so the software won't add supports inside the holes if you use the default print settings and print on edge as shown.