One of the drawings in your instructable refers to a regulator attached to the downstreem end of the coiled hose. I didn't see one in the part list, and it isn't evident in the photos.

Did you actually use a regulator? If so, what make and model, and where is it on the completed launcher?

... did the other thread show enough detail on the bodystrap??? you could actually make triangular side plates for the bolting up and then use a wooden handle between them as the actual handhold...

The other thread showed enough detail.

I had flat side plates with a straight handle in mind ...

jeepkahn: Thanks for the quick reply.

I think I'll try to avoid purchasing ATV parts for now, and see first if I can bend one up. The tubular part looks like about 1" OD tube, bent on a 2" inside radius. Is that abou right, and is the tube made of aluminum or steel? I'm not sure if I can bend 1 ...

I just noticed the forward grip mount on your modgun (coax with 4" chamber?). I've been looking for something like that for a 6" chamber currently under construction. Did you fabricate it? if so, I'd be interested in construction details. The two forward mounting points are obvious, but how did you ...