truerng_find.py: Scans COM ports and identifies all connected TrueRNG devices
truerng_mode.py: Example of how to change modes on TrueRNGpro and TrueRNGproV2 devices
truerng_read_example.py: Example of how to read from a TrueRNG device
truerng_test.py: Finds and performs testing on connected TrueRNG devices
Tools (Linux Only)
truerng_fulltest.py: Reads a large block of data (14GB) and runs ent, rngtest, and dieharder (takes ~9 hours on the TrueRNGpro / TrueRNGproV2)
run_rngtest: Linux script to run rngtest since it doensn't like to be called directly from Python - this is a "helper" for truerng_fulltest.py and isn't meant to be used directly
This is the exact same g-code that I printed before and after the motor swap. It's hard to photograph but it's a huge difference. I wish that Prusa had offered the 0.9° Moons motors as an upgrade option when new.
I tried a few different rods and bearings for the Y-axis but they all seem to have some degree of racking. You can check this by holding the left side of your bed solid and trying to move the right side forward/back. Any amount of movement implies that there is some amount of rotational movement on the bed when the y-axis moves.
These are a direct mechanical replacement for the stock Prusa X and Y Stepper motors. The issue that I was seeing was Vertical Fine Artifacts when moving at 20 to 35 mm/s. This appears to be caused by resonances from the motors when operating at certain speeds. You can often hear that at certain speeds the machine vibrates. I believe that is what was causing my issue.
The TrueRNGv2/3 and many other random number generators often provide a uniform
distribution output. This article shows how to convert this to a Gaussian Distribution
We get questions about how to use our TrueRNG random number generators so I thought I would write a tutorial
on how to get it running with Python on Windows and Linux
I wrote up an article on testing the TrueRNG using ent, rngtools, and dieharder. I talk about the meaning of the results and the statistics that are expected for a good hardware random number generator.
