I have this ramp that needs these ridges along the top surface. For some reason, every pattern i try to do doesnt work out; the pattern physically moves into the part or just wont exist. The only critical dimensions for this pattern is the size and shape of the ridges being patterned, the distance apart or how many exist doesnt matter, just needs to look clean. I searched the forums for solutions, but none i have tried work. If anyone could help me find a way to fit this, i would appreciate it.