Paddle V2

This iteration of the paddle would require many changes before finally running it on the CNC. These included widening the cylinder that would be drilled to attach the shaft, this gave more room for error while drilling and more strength at the attachment point. Enlarging this cylinder created problems with every single loft, so they all had to be redone per plane. The blade outline remained the same, but some sketches were given extra area to create more structural integrity to the paddle overall, and solve the very thin spot that occured on the previous run.

We used the same flip mill process with pegs for the second version, and the drilling and top side CNC toolpaths of the paddle worked perfectly. The backside of the paddleblade, however, was not smooth. We suspect this may have been due to offset conditions set in the toolpaths, but it is very unclear why the CNC drill lines are significantly more pronounced. They were still very usable.

Once the blades were CNC'd, the stock was cut in half in between the blades. Each half was put in the drill press, with all the joints securely tightened to reduce any movement, and the holes for the shaft attachment were drilled. This went much smoother than V1. 

Once drilled they were attached to the paddle shaft, (which we dipped in epoxy to thicken prior to inserting into blades), and the 30 degree blades offset was created using a clamp jig and a vertical beam. See image above.

Once the epoxy cured the blades were band sawed out of their stock and sanded down to reduced the roughness on the back face. See above image for after band saw but prior to sanding.

Finally, the blades were coated in epxoy for additonal protection and sealant. See below.

There is no summary questions on the assignment page.