Here's the fin fit after the trimming. Adding the extra recess for the wrap of tape on the engine mount made a big difference in getting...

Here's a tip suggested by Jeff Roberts (Luke Strawwalker or OL JR) on the Rocketry Forum: "... Grab a few of the regular "scho...

With the fins slots cut the engine mount was slid into position. On this model, the end of the engine mount tube and mainframe tube are even...

There's some great advantages living in Central Florida. Last night I was able to walk out my front door and watch the first launch of ...

The top of the slot is rounded using a small rat tail diamond file. File a bit, check the fin fit and file some more until the fit is good....

By using this tool you can gauge how deep the wadding will go inside the tube. Here I'm holding the dowel outside the body tube to the d...

Using a fin marking guide, the tube was marked for three fins. With the trailing edge of the fin even with the end of the body tube, the top...