To assemble the power meter you simply need to attach blades to each shaft section. This guide describes the process of fixing the blades into the correct position with hot-melt glue included in with your power meter.
The left shaft section has the length scale and it is the shortest of the two shaft sections.
The right shaft section has the connection clamp and it is the longest of the two shaft sections.
Check that the blades fit the shaft. Left blade onto the left shaft, and right blade onto the right shaft.
If the blades fit too tightly, try sanding the end of the shafts with 80 grit sandpaper to reduce the outside diameter slightly.
Leave the blades in fitted to the end of the shaft (not yet glued) and carry out the following steps
Apply tape to the throat of the blade.
Apply tape to the shaft where the shaft meets the blade.
Perform this step for both left and right shafts.
Rotate the left blade on the end of the left shaft to the position where the face of the left blade is aligned with the zero angle (as shown below).
Mark this alignment of the left blade using a pen on the tape applied in Step 3.
Remove the blade from the end of the shaft
Sand the end of the shaft with 80 grit sand paper to roughen the surface, allowing for a good surface for adhesion
Heat the glue stick with a heat gun until the stick becomes soft
Dab the softened glue stick onto the end of the paddle shaft, depositing glue at several locations
Using a stick/trowel, spread the glue over end of the shaft. You will have to apply heat to the deposited glue to allow it to be worked smooth.
Prepare to glue the blade onto the shaft by reheating the applied glue as well as pre-heating the blade socket. Take care not to overheat the shaft or the blade during this stage.
With the glue hot and the blade heated, assemble the blade onto the end of the shaft. Push the shaft all the way into the blade socket and then rotate the blade into the position where the alignment marks made during step 6. are aligned.
Remove an excess glue while it is still hot and easy to wipe away.
Allow the blade join to cool down before applying any force to the glued joint. Once cool, make sure that the alignment marks remain aligned. If adjustment is required, heat up the join with a heat gun to re-activate the glue then twist the blade to align the marks.
Assemble the paddle shaft by joining the left and right shafts together
Set the blade offset angle to zero
Rotate the right blade so that it's alignment matches the left. At this stage, the right blade should be fitted to the end of the right shaft, but not yet glued in place.
Alignment can be achieved by supporting both blades on a two level surfaces (see picture below). Be sure to support the each blade an equal distance from the blade tip.
Mark this alignment of the right blade using a pen on the tape applied in Step 3.
As per instructions in Step 7.
With both blades glued into place, remove the masking tape. A small amount of heat directed at the glue covering the edge of the tape will allow for easy removal and a tidy finish.