Gluing the Bridle to the Motor Mount

I’ve started Step 1 of the Rocket build.

Step 1 of instructions
Step 1 of instructions

 

I decided to purchase a Syringe pack of 24 hr Alaldite glue. I choose 24hr glue because it offers strengths up to 150kg. I choose to get it in syringe form to help with the delivery of equal amounts of Part A and Part B.

I was very careful to follow the instructions. The instructions said to mix it for a minute and then let it rest for 5 to 10 minutes. So I did this.

Before doing any gluing I marked 7cm down the motor mount, so I would glue it in the right place. I also marked the strap.

Measured/marked where the Bridle is to be attached.
Measured/marked where the Bridle is to be attached.

I was very particular about the GRIT of sand paper. I wanted to ensure I had low enough grit to ensure I get a good join.

60 Grit Sandpaper
60 Grit Sandpaper

I sand-papered it over a larger area than the strap because the glue will spread out beyond the Motor Mount. Increased surface area, increased strength.

Scuffed the Motor mount with Grit 60 sandpaper.
Scuffed the Motor mount with Grit 60 sandpaper.

 

Then I cleaned the motor mount of dust.

Motor mount cleaned of dust.
Motor mount cleaned of dust.

I wanted to make sure glue did get everywhere I don’t want it, including INSIDE the motor mount. So I’ve taped it well.

Taped up the Motor Mount, to ensure glue doesn't go where I don't want it to go.
Taped up the Motor Mount, to ensure glue doesn’t go where I don’t want it to go.

 

Following the instructions on the Araldite, I applied glue to both materials.

Araldite applied to both the bridle strap cord and the motor mount.
Araldite applied to both the bridle strap cord and the motor mount.

 

Then I brought the two together and used making tape to keep the two together as it dried. The glue job was complete at 16:00. So by tomorrow morning it will be dry. It won’t be at it’s max strength, but it will be enough to start on the other end of the strap.

Bridle Strap cord secured to the Motor Mount.
Bridle Strap cord secured to the Motor Mount.

I will probably apply more araldite over the cord, below where the centering ring is to be, to get increased bond strength.