Tuesday, August 24, 2021

Quest Planet Probe #Q1022, Part 5, Fin Gluing

The tube marking guide is on the shroud sheet. 
It didn't match up when wrapped around the yellow motor mount tube.
I went to payloadbay.com CLICK HERE and printed up a three fin marking guide. The outside diameter is .738". 
This is the standard motor mount tube used in many 18mm Quest kits. 

This tube has a notch cut in it but there is no engine hook used in the design. 
TIP: Be sure to set this hook slit at the top of the mount. The tube will be stronger with the engine block right behind the cut slit. A bit of glue will will be pushed over the slit when the engine block is slid in place.



Since this was a show build for Quest, I filled the seam in the yellow tube with CWF. After sanding it got a shot of filler/primer.

I set the root edge next to the motor mount tube and pencil marked just under the top of the root edge. The primer/filler was scraped off down the alignment line to the yellow tube.




The fins were glued on using the the centering ring to help set the top heights. The ring isn't glued on yet.

The scraped line is for the launch lug glued position.





The launch lug is glued in place. 

The centering ring still needs glue fillets.

2 comments:

  1. Hi Chris,
    What type/brand of CWF do you use?

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    Replies
    1. Hi Jimmy,
      It's the Elmer's Carpenter's Wood Filler (CWF) in the tub with the orange lid.
      Here's some of blog links:
      http://modelrocketbuilding.blogspot.com/search?q=cwf

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