Rulers and Width Gauge for Woodworking

I printed these as part of a woodworking hobby where I needed something the width of my table saw blade. (1/8"). Then I also needed 1/4", 1/2" and so I did all 3. So basically it's a woodworking feeler gauge set for doing dados or kerf-like jig offsets in multiples of the width of the blade. Obviously you can stack them up. 1/8 + 1/2 = 5/8 or 1/8 + 1/4 + 1/2 = 7/8 and so on.

Note that I used Adaptive height in Cura to try to get as close to 3.175mm as possible (that's 1/8"). If you don't, and set height at 0.2mm, 1/8" could come out as 3.2mm or 3mm.

The assumption is that your 3d printer is more or less tuned correctly if you want the height to come out as close as possible. Note how you level your bed (ie : how squished the first layer is) can also make your width come out short. The most important thing is to see if the 1/8" piece matches the actual cut your blade makes.

I put in a metric and imperial markings to make them into a ruler because let's face it, you can never have enough rulers.

I provided 7inch and 4 inch versions (about 180mm and 100mm+)

Note that if your leveling is not spot on, even if you get everything else tuned perfectly in your 3D printer, the printout may still be short. Note that the models height are exactly 1/8", 1/4" and1/2". If you need to compensate, you can choose to scale only in Z direction by adding up to 0.2mm or so depending on how squished your first layer is. But do so at your own risk.

Note that adaptive layer height behaves inconsistently with each printer, so if you can't get a good result even after manually scaling in Z direction, please just fix the layer height at 0.2 or 0.1. This way you will probably get 1/8" as 3.2" less the amount of squishing in your first layer. The point is that as long as the ruler fits your actual blade cut, it's sufficient for the limits of accuracy of the tools we operate with.