thanks for help all. its my first build and i am trying to do it best,,
big UPS will set me back big $ i am trying to keep my cost as low as possible. will be using Mi; steel from welder shop to make mechanical components i have seen videos and results are good enough for me.. dont want to go with Al extrusions bcz of $
still hoping to find solution for power outage with least cost
going with this approach (link below) bcz its seem very low cost
