Overlord Pro - Dial Indicator mount

thingiverse

The paper test, while a useful thing, just isn't my cup of tea. I want numbers. Two models are listed here. Do keep in mind that the Overlord Pro was sold with a Z resolution of 100 micron. Don't freak out when you can't get 100% repeat-ability. Dial indicators measure very small changes and that needle sweeps a lot at even 50 micron/.002in. Dial indicators themselves have some tolerance issues too. So the combination of backlash, endstop repeatability, and dial indicator inaccuracies add up to a lot. 1) V2 is a conical shaped mount designed to fit a 1" range dial indicator. It will clamp onto the shoulder of the dial indicator and has a 9.4mm diameter clamp. It'll hold a 3/8 (9.525mm) nice and snug if your filament has some give. Use a 3mmx20mm screw to clamp it shut. A relief is in place for a 3mm nylock (5.5mm from fla to flat) as well. If you're printing in PLA, use the other mount. 2) V1a is a bracket that will hold pretty much any dial indicator out there that has a mounting tab on the back of it, and is more or less the same dimension-ally as a Mitsumi analog dial indicator. The through slot is 3.5mm in width by design. The accompanying slop gives you the wiggle room to move the dial indicator around until it is perfectly centered through the hole on the mounting plate. I use a 3mmx25mm screw to clamp the dial indicators tab in place. The gap between the "towers" is 7mm. The "towers" are positioned so that the dial indicator faces the "front" of the printer for easy reading. The "towers" are of different thickness by design. One was thinner than I would have liked, and compensated by making the other thicker.