pause added to layer to allow user to swap filiments allowing colour change without AMS. Below is the original design description. 

KBFLY original creator.

Introducing QuickCheck Calipers – your handy tool for nailing measurements on the fly! Small enough to stash in your pocket, these bad boys deliver quick and accurate readings in a snap. And get this – they're printed with an ultra-tiny 0.2mm nozzle, but still whip up in just two hours! 30mins! if u use .4mm nozzle. Whether you're tinkering in the garage or tackling DIY projects, QuickCheck Calipers got your back for hassle-free precision, anytime, anywhere.

added V2 has some small tweaks for printing with .4mm nozzle and larger layer heights. 

caliper flipped and printed with numbers facing up.

Raised the dashes and numbers, 

Enlarged numbers to make printing easier with normal nozzle.

Use Classic wall generator instead of Arachne for the numbers to print correctly. 

Add ironing to all top layers.