Replicating detail on curved surfaces

chrisp9au

Hi,

I'm new to the forum, but have been doing bits and pieces with Sketchup for a while.
I haven't tried anything complex up until now, particularly with curved surfaces.

I'm trying to draw a worm gear within a slip clutch, please refer to the two images.
One image is of a slip clutch design that I found on the net, it's similar to what I'm trying to design. The second image is of the bronze gear that I now own. It is 230mm in diameter, 12mm deep, with 359 teeth. It was made by Ed Byers in the USA, a renowned maker of gear systems for astronomical telescope mounts.

I would like to know how, in Sketchup, to go about replicating the teeth around a curved surface?

I haven't even considered how I would draw the worm itself!?!

I've searched the forum, and looked for Sketchup models, but to no avail.

Your advice would be appreciated!

Thanks

Chris

Image found on net

Picture of gear to be modelled

Box

The bronze gear is easier than you think. Make one tooth as a component then create an array of 358 copies.
As to to worm , use a helix and follow me, or you might need follow me and keep.

But don't be daunted, have a go and ask again if you run into specific problems.