Sandblasting

Buddy in the Physics Machine Shop at Penn was willing to let us use their sandblaster to finish many of the parts we've machined. Most importantly, we needed to sandblast the quick locks we machined yesterday, to soften the edges and make sure that the polypropylene tethers won't be cut by them. 

Before sandblasting: 

During Sandblasting: 

And post sandblasting: