Never apply CA glue where a wood glue joint will go later. Wood glue needs to soak into the surface. CA glue seals the area where it is applied.
The instructions say to cut a 1/8" square notch in a centering ring.
I used my rotary punch to cut a half circle for engine hook movement relief.
The upper ring got a slight recess cut for a better fit over the engine hook.
Instead of cutting out a 1/8" slice from the clear oversize coupler, cut a single line. Use an aluminum angle (set inside) for a straight cut line.
Slide the coupler in the BT-60 and check the overlap. Mine was a little less than 1/8" wide. Mark and cut the second line a little oversize. Final fitting in the next post.
GOTCHA: When testing the fit of the clear coupler, I found it was cut uneven. One side was longer than the other by about 1/16". If used as supplied, the third upper ring would sit at an angle when butted up against the coupler top. The long side was sanded so all sides were the same length.
I realized I’d never noticed it in the bag, so I got curious about which version was in my kit. Turns out, it’s inside the BT-60 tube, so it’s the version from before they ran out.
ReplyDeleteHi Leo,
DeleteThe "coupler sized" clear tubing is certainly better. I'm surprised Estes didn't just trash the larger ones and get the correct size. It's a little tricky for the builder to size it up.