Measure Parts in STL Format with a Digital Ruler
thingiverse
Sometimes you just want to take a couple dimensions off a part, but you only have access to the STL file. It's difficult to convert an STL file back into a 3D geometric object. You can do it to some extent, but I don't want to purchase and install special software for a quick task. In situations like this, I load the part in question into my printer host software (Repetier Host for me) and measure it with a digital ruler STL file. The provided ruler has 1/4" increments, but you can scale it to measure any increment you want. In example photos, I measured the hole spread (3/4") on a Printrbot part. This method is very limited, but it's free and straightforward. I've also included an STL file of a soda can that can be used as an alternative size reference. You might prefer to use this easy & free program for taking dimensions of STL files: http://www.netfabb.com/basic.php
With this file you will be able to print Measure Parts in STL Format with a Digital Ruler with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Measure Parts in STL Format with a Digital Ruler.