Steve I had an advantage in that I didn't know what I was doing. I routed a 4 X 8 four lane 90 degree curve in my carport and had my fan blowing saw dust away. I cut two 8 foot straight and connected one at each side of the corner, as you had told me. I then tightened the straps and pulled the bank. I knew then I could build a pretty simple track with smooth banked corners. I went ahead and routed two more 90 degree curves. Next I cut the straight tracks and routed them. Everything at 4 inch centers and 6 on the outside. I then hauled all this mdf down to the garage I share with my brother. I had an 8 foot by 30 foot table there for Carrera track. I removed the Carrera and then built my track on this table, At this time it had only the 1/8 main slot. I cut the mdf and put it together like you would sectional track. Used blocks to create the banks as I wanted them on the table top. Once I had it together and banked as I wanted, it was complete and setting on this table,. I raised it 18? inches all the way around and installed the legs. I now had the track surface and legs done, banked and all pieces together..But I had a track mostly complete, but it was on this table! I thought of dismantling it and removing the table, but it was so smooth, I hated to take it apart. what I did was separate it into halves. I built a truss under each half and lifted it with my engine hoist and cut the table out from under it, then lowered it to the floor and put both halves back together. Routed the braid relief with a bit from Slot Car Corner and held my vac there to catch the dust.
Painted, built sidewalls and wired it. Eventually replaced the flat end of the track with a section of 5 inch wide lanes instead of 4 inches. Still had a ton of sawdust and used the leaf blower to blow out the garage every day or two.
I enjoyed doing it, completely by myself, and spent a few weeks jacking it up here and there and laying bags of rock salt on it to change some banking and twisting.
I did end up using screws and kind of forgot the nail gun. I built legs that had a cross brace at the bottom and once elevation was where I wanted it I tightened them to hold that position. It made it very strong.
