Calibrix Danish Blocks Stud Calibration Tool for 3D Prints

This tool was inspired by a different tool I saw on this website by Dain.  See here:

With our models, both of us have the same goal in mind:  We want to create 3D printed Lego-compatible parts, but we desire a perfect fit.   Dain's model works well if you trust the source of the print and know what 100% scale is for size, but as you know, different creators have different printers, different tolerances, etc, so there is not consistency in the size of studs and how well these parts fit.  

My model is different because I am giving you incrementally larger studs (in 0.01 mm increments) to allow you to find the measurement that's perfect for your printer.  There is no concept of scale, but rather what size you will use when you design your own parts.  The tool has two rows, one for the deviation from a normal stud radius, and the other tells you the stud radius measurement (in mm).  I have two rows of studs, and the two rows are identical.  I believe giving you two identical studs gives you a better, more accurate, test of which stud size is the best.  This means when you are using this tool, the ideal test piece (preferably a real, authentic Lego) should be a 1 by X where the X needs to be at least two (but 4+ is best).  The numbers on the tool line up with a pair of studs, so when you find the stud pair that works best, refer to the numbers above to get your perfect measurement to dial into your model.  Always start with the smaller measurements and slowly work your way up.  If you start too big, you could potentially get your block stuck.

I create models that are parameterized, so it's easy for me to take exact measurements to improve my models I print.  You can, however, use my measurement within your preferred slicer to indirectly scale the model to the ideal size.  Prusaslicer and Bambu Studio both contain measuring tools, so you will want to scale a bit, then measure to verify, and keep going until you scaled it to the perfect fit size. 

There are two models, and they both should work well for you.  I generally recommend the normal model first, but if you discover your prints tend to be looser on average, the bigger measurement tool will likely work better.

Update:  I now have an antistud version of this model for models that use round antistuds.  It's part of my new collection I am releasing - Calibrix.  There will be multiple models under the Calibrix name that use the measurements as parameters to give you blocks of the perfect fit, so stay tuned!