New Bashguard

I once again cut down a Nashbar bashring to make it smaller and lighter. (The first one was last year.) I took pictures this time. The resulting part weighs 99g, and has a radius 0.15" smaller than the original.

First, cut down the radius. This is the only functional change, adding clearance for rocks.



Next, I drill out some excess metal to lighten the part. The finished hole size is big, 3/8", because small holes don't achieve much savings.




At the end I pared out some excess metal near the edge, using a ball mill at the end to provide a big inside radius to minimize the chance of cracking the aluminum after a big bash.