We have completed the pilot phase and everything looks pretty good. The work done is very accurate and we will not have any problems with the fixing of the surface to the frame. We have decided to use 5mm Countersink bolts with locknuts to fix the plywood and metal sheet to the surface. This will ensure that they don’t pull out after a while… or at least we can tighten them or replace them if required.
It will be bit of a mission to drill all the holes through the 5mm angle iron for ever bolt we need and if you look at the 2500+ screws required it might take a while. But we’ll do anything to make sure the surface is 100% for skating.
The other issue we will face is to put the nuts onto the underside of the flatbottom if it’s flat on the base frame, because we don’t have access under the ramp. We have a working solution and I will give you more info after we have done the flatbottom surface.
The flatbottom was very easy to build: