Thursday, October 23, 2014
Estes Patriot Build #2056, Part 2, Tube Prep and Gluing
A dry fit of the white tubes showed the tubes weren't cut clean.
There were enough gaps for some edge truing and sanding.
The inset picture shows the same tubes after sanding square.
This is something you should check on any opened kit. It's easier to see bad edges on larger tubes.
On my block is 220 grit sandpaper. It only takes a few passes to knock down the high spots.
Before using any glue I got rid of the burrs on the coupler edge.
The top and bottom of the coupler were rounded off.
The inside of the body tube edge was rolled over with a smooth dowel.
This was the first time I have used the new formula Elmer's glue. It helps to know beforehand there have been problems with this glue and rocket construction, the coupler could lock up.
I was prepared to used enough glue and slide the coupler in quickly and smoothly.
I put a fairly good sized bead of the new Elmer's about 3/8" inside the tube. The bead wasn't smoothed out, the excess was not picked up with a fingertip.
With the glue away from the edge, it allowed me to set the edge of the coupler into the tube without contacting the glue.
I smoothly slid the coupler in while turning it up to the pencil line in the center.
I was able to get the coupler in without any problem. But, you could feel how this new glue formula could grab before the coupler was halfway in.
Sand tube ends and CA ends= 10 minutes
Total build time so far = 20 minutes