Rick,
I read (and re-read) the description of the one you built but passed by the plumbing pipe stuff on the way to get parts to build one like yours and it just sort of happened. Was cheap with only 3 parts. The weird thread threw me for a loop but luckily close is good enough. The plastic paint definitely stays on the PVC pipe fork guards, even where I hit big stuff (that I'm not supposed to). Cam.