Hi!
If using a combinator board to do a full bridge with 4 different load cells and the values as inverted. Adding more weight gives more negative values.
Can I just shift the polarity of each load cell connected to it? Every other load cell?
You’re on the right track!
It’s easier to swap the signal pins between the combinator and your amplifier though. Just swap the wires going to the GRN and WHT pads on the combinator and that will flip your readings to positive numbers. 
TS-Chris:
You’re on the right track!It’s easier to swap the signal pins between the combinator and your amplifier though. Just swap the wires going to the GRN and WHT pads on the combinator and that will flip your readings to positive numbers.
And if that’s not possible? :?
I used your combinator board to make a custom PCB for mounting the load cell amp and a wemos on the same place, that way and with some 3d printing I have a perfekt little beer keg weightscale that uses minimal room 
https://i.imgur.com/nzq2p4I.jpg
Here’s the entire thing beneath the keg
You can either reverse all the load sensor connections, or fix it in software by flipping the sign there. (so that -x becomes x in your code.)
Make sure your load cells aren’t upside down, too.
TS-Chris:
You can either reverse all the load sensor connections, or fix it in software by flipping the sign there. (so that -x becomes x in your code.)
Cool, and reversing the connections should be the + & - then! I’ll try that first and see before I go to the software side
brow:
Make sure your load cells aren’t upside down, too.
Thanks but it’s this model so can really set them inversed
https://media.digikey.com/Photos/Sparkf … -10245.jpg
