Thanks! I really enjoy tight and tidy wiring and soldering jobs. After going through this all I ended up purchasing some parts to make a relatively accurate 1/4w decade resistance box.
After looking back I probably should have gotten the Omron switches instead of the Adafruit ones because the Adafruit ones add 1Ω once it's all together. Each switch was measuring about .17Ω between common and 0. I also would have been ok with 1/10w resistors or 1/8th.
I purchased extras on the resistors so I could match my resistors going up the decade so there wasn't a significant drop between each. So for instance if one was 9.9972k the next would be 10.0013k to round it out as near to 10k as I can. For my 1Ω I used 1% 50ppm, 10Ω .1%15ppm, 100Ω .1% 25ppm, 1kΩ .1% 15ppm, 10k .1%25ppm 100k .1% 50ppm, 1M .1% 50ppm. On another look I should have gone with lower PPM on the 100k and 1M, and definitely a lower wattage cause they were huge, but I made them fit.
Anyways here are some pictures of that build.
Each module ready to be connected together.
After wiring each one to each other I had realized what a tight job it was.
Quick check on the meter. Showing .007% accuracy.
Fit into it's little box.
And done.
So after doing this project it made me wonder, we have the kit going around, what are the chances of getting more ranges sent around? Would be great to be able to calibrate the entire range of my meter to match that of other's. There should be a full calibration kit, in decades 1, 10, 100, 1k etc with a verified reading on someone's fancy highly expensive already fully calibrated machine.
At least for resistances. Just a thought.