The S Crank

I am down to the last part on two reels to be done at the end of the month. It is the nickel silver crank.
ds1025
The outline of my crank is formed by a series of circular arcs so that it can be made on a mill equipped with a rotary table.

I start by drilling/plunge milling seven holes in a rectangular blank. These are the three eventual through holes plus four small inside radii.
IMG_3462
Then I can screw the drilled blank to a tool plate on the rotary table and cut the larger arcs. The last step is to make the center hole square.

Advertisements
This entry was posted in Crank. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s