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Parts List

Please note that when constructing multiple rockets, some parts on this list will be part of a unit purchase. For example: #10 washers with a quantity of 4 is called for but it makes more sense to puchase a bag of 50 washers at one time. Larger, bulk purchases will reduce the per unit cost of a launch pad.

All parts can be found in the hardware store with the exception of the spring. If the hardware store doesn't have a suitable compression spring, then order them from the supplier listed. The spring cost is a high estimate because the spring chosen is not the best for the job.

Drawing Reference

Description

Quantity

Unit Cost

Cost Estimate

 

3/4" to 1" Copper Pipe Bushing

1

1.87 ea

1.87

 

1/2" PVC Cap

5

0.17 ea

0.85

 

7/8" ID Rubber Hose

1"

0.60 ft

0.05

 

1/2" PVC Plug

1

0.37 ea

0.37

 

1/2" Sched 40 PVC Pipe

67 3/4"

1.20 10ft

0.80

  Cut Pieces

2 pieces 1 3/4" long

2 pieces 3 1/2" long

1 piece 1" long

1 piece 8" long

4 pieces 12" long

 

1/2" ADPT - FML PVC Adaptor
(Threaded one end and slip the other end.)

2

0.18 ea

0.36

 

1/2" CPVC pipe

2"

1.20 10ft

0.02

 

1 1/4" PVC Slip - Slip Coupling

1

0.25 ea

0.25 

 

2" Sched 40 PVC pipe

9" (16" to make 4)

6.60 10ft

0.50

 

3/16" screw size 2" - 4" Turnbuckle (preferably Not Aluminum)

2

1.57 ea

3.14

 

12 ga. bare Copper wire

2 pieces 15" long

????

????

 

1/2" x 10" Sprinkler Riser

1

1.29 ea

1.29

  

Rubber Garden Hose Washers

5

0.98 pkg of 10

0.49

  

1/2" PVC "T"

2

0.19 ea

0.38

  

1/2" PVC Cross

1

0.97 ea

0.97

 

1" Hose Clamp (can substitute 1 1/4" )

1

0.88 ea

0.88

 

Tubeless Tire Valve (All Rubber) Use the shorter stem and smaller diameter hole. There are two lengths and two diameters to choose from.

1

2.00 pkg of 2

1.00 

  

1/4 - 20 x 3" Bolt (Threads must run entire length of bolt.)
Higher quality bolts are better and stainless is the best.

1

0.10 ea.

0.10 

 

1/4 - 20 Nylock Nut

1

0.97 pkg of 2

0.49 

 

5/16 - 18 (course) x 1" Bolt

2

0.10 ea

0.20 

 

5/16 - 24 (fine) x 1/2" Bolt

2

0.07 ea

0.14

  

1/4" Washer (ID must slip over 5/16 bolt)

6

0.10 ea

0.60

  

5/16 - 18 (course) Nylock Nut

2

0.97 pkg of 2

0.97

 

#10 - 32 x 3/8" Panhead Screw

2

0.98 pkg of

0.10

  

#10 - 24 Nut

2

0.05 ea

0.10

 

#10 - 32 Nut

2

0.05 ea

0.10

 

#10 Washer

2

0.90 pkg of 10

0.15

 

#10 inside Star Lockwasher

2

0.97 pkg of 18

0.14

 

7/8" ID x 2" long (1 1/2" to 3" long) 1/8" wire Compression Spring
DWC-125LM-10 From Diamon Spring 1-800-424-0500
Can substitute with longer springs and springs with small diameter wire to cut costs.

1

5.66 ea + SH

5.94

 

60/40 solder

4"

??? / roll

????

 

Lead free solder

6"

??? / roll

????

  

PVC Cement

a few drops

1.49 can

0.02

  

PVC Purple Primer for cement

a few drops

1.57 can

0.02

 

Teflon Thread Seal

a few inches

1.09 roll

0.01

 

Soda Bottle

1

Recycle for free

 

 

Plastic sandwich bag

1

1.50 / box

0.07

 

Nylon string (not stretchy)

14'

??? / roll

???? 

 

light duty small rope clip

1

0.89 ea

0.89

 

fabric bag

1/3 yd

1 / yd (on sale)

0.33

 

Blue spray paint

enough for logos

1.30 / can

0.05

 

thread for bag

???

??? / spool

????

 

Printed materials - disclaimer card

1/4 page

0.36 / page of cardstock

0.09

 

Printed materials - congrats page, safety rules page

2 pages

0.05 / page

0.10

 

 

 

Total cost

23.84

Special Tools Needed

Description

Approximate Cost

5/16 - 18nc Tap

3.69 ea

#10 - 32nc Tap

3.29 ea

1/4 - 20nc Tap

3.29 ea

** Alternative to Torch - Copperbond 2 part epoxy for copper pipes

6.31 pkg

** Propane Torch and Solder Kit

30.00 pkg

Thread cutting oil (can substitute with kitchen cooking oil)

 

PVC Pipe Cutter

12.00 ea

Round File

 

Flat File

 

Needle Nose Pliers

 

Screw Driver

 

Plyers (Can use channel locks)

 

Drill Bits

 

5/32 bit for #10 tap

 

3/16 bit for 1/4 - 20 tap

 

1/4 bit for 1/4 - 20 through hole

 

5/16 for 5/16 through hole

 

17/64 bit for 5/16 tap

 

5/8 Auger bit for reeming out 1/2" Schedule 40 PVC

 

1/2 Auger bit for Tubeless Tire Valve

 

Jigsaw with course wood blade and metal blade

30.00

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