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The Official Magazine of Tripoli Rocketry Association

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  Determining Grain Length on a Mandrel:
   38mm- Subtract 0.2” + 1 grain length.
54mm-76mm - Subtract 0.3” + 1 grain length.      98mm- Subtract 0.40” + 1 grain length.

7/16” - 7/8” Mandrels are 12” long.    1” - 1-1/2” Mandrels are 14” long.

  Plastic Material Price Increase. Click here and read more.

38mm Core Aligning Caps - Core Size

54mm Core Aligning Cap - Core Size

38mm Cap    

 

54mm Cap    

 

Vented

76mm Core Aligning Cap - Core Size

98mm Core Aligning Cap - Core Size

76mm Cap    

 

98mm Cap    

 

Non-Vented

152mm Aligning Cap

152mm Cap    

 

152mm Top Aligning Caps are machined to fit your existing mandrel.
When ordering, request mandrel size  in comments section. Base caps can ordered w/5/16” or 3/8” mounting hole.

Uninhibiting Top Aligning Caps

Add these 1/16” concave forming top caps to your existing casting sets.
One uninhibited grain end is all you need.

54mm Uninhibit Top Aligning Cap

54mm Cap    

 

76mm Uninhibit Top Aligning Cap

76mm Cap    

 

   All mandrels have 1/4”-20 threaded ends. 1-1/8” mandrels and up threaded 5/16”-18 on one end.

12” Delrin Mandrels

Delrin Mandrel    

 

12” Teflon Mandrels

Teflon Mandrel    

 

14” Delrin Mandrels

Delrin Mandrel    

 

14” Teflon Mandrels

Teflon Mandrel    

 

MLEX2 Spray Release

$17.95

Poly Pull Handle

$2.20

  3” Rubber Square Base w/screw

  $3.00

  4” Rubber Square Base w/screw

  $4.00

  5” Rubber Square Base w/screw

Miscellaneous    

 

  $5.00

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