I too have been working on a similar design with those exact wheels which I posted earlier in this thread. However, I found out this past weekend that the materials and axle diameters (at least the 1.5 inch) mentioned in the above link allow way too much flex to be useful for the purpase of moving catamarans. It looks good, but the flex is a problem. I believe I already have a low cost solution and will post back within the next few weeks with photos.

Also, I found that simple ABS piping is not good as a bearing or bushing. It doesn`t glide very well - even worse when it warms up. I found that nylon or similar poly material glides much better.


Dave