Saturday, August 20, 2011
Tapping Moxon Handwheels Video
Our first run of Moxon Vises sold out in short order, and we've been busy getting the next run finished up. They are almost done and should be shipping in less than two weeks.
Earlier this week we were tapping hand wheels and thought it would be interesting to show how this is done.
For those of you without machine experience, running acme taps in this size is demanding work. Unlike machine screw threads, where there is relatively little material to remove from the largest diameter of the thread, acme threads feature a flat bottom and almost square-shouldered threads, requiring lots of material removal. Acme taps either come in pairs (roughing and finishing), or in tandem form (a single tap with two stages, roughing and finishing). The tap in the video is a tandem. The first half of the tap gets rid of most of the material, while the second, finishing section refines the profile and leaves a smooth finish.