Well the two garage door rails didnt work

Because the roof is sloping there is too much weight on the bottom rail/ rollers causing all sorts of grief.
The roof attempts to " crab" along using the drive gear and toothed track, mainly because the weigh is unevenly distributed ( I think).
So today I've bought a V groove track for the lower wall and V grooved wheels to run in it. Hopefully this will make the bottom side more " rigid" and allow the upper floating wheels to run better in the top garage door guides.
Cant work on it for a week due to family things but will attempt to swap it over, fingers crossed !!
Any suggestions ?
Cheers
Incidentally my wife reckons if it doesn't work it will make a good kennel for our two big dogs, so she has nicknamed it the " Dog Star Kennel ", Sirius'ly