Different radius using the same fixture base! | | Today I made the second radius attachment for the fixture, it used two dowel pins to locate the small parts for milling the .15625 R The block was another piece of cast iron, and the procedure was the same except for the method of locating and holding the part! I had to drill and ream a 2nd set of 1/4" dowel pin holes in the fixture base, as these parts have a different starting and ending points for the radius!
The use of CAD enabled me to get the tangent points so good, that
I could not see or feel the start and end of the radius as it blended in to the rest of the part!
After the radius was milled on all 15 parts, I dismanteled the fixture and used the cast iron block in the mill's vise to drill and ream the small center hole!
Now that all the parts are machined and deburred, I pressed little pins in the new parts, and assembled all the indicator adjusters !
Now that was a fun project!
And the fixtures will make it much easier to make up another batch!
Total expense for dowel pins, springs, and 303-SS bar stock brought the cost of manufacturing these little adjusters to $11.47 each!
Want one? Send me a PM!
Eric!
Last edited by widgitmaster; 08-16-2006 at 04:36 PM.
Reason: Added more pics
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