by Nate and Justin

Step 1: Materials

1 3/4 in pvc pipes cut down to 18 inches (45 cm)

1 3/4 in dole rod

3 3/4 in Galvanized tube straps

7 #10x5/8 in pan head phillips

2 #6x1-1/4 in drywall screws

One Door hinge

3 extension springs varying in size due to the distance and power needed

Degree marking block

canon support wood

Step 2: Process of Cutting and Assembly

First you must cut down your pvc pipe to ~48 cm and ~53 cm for your dole rod

Step 3: More Assembly

Screw in your pvc pipe into your barrel support beam with Galvanized tube straps

Step 4: Measurements

Use your protractor to locate the necessary angles needed for the proper trajectory and launch of your marble.

Step 5: Marking the Angles

Make lines ~ every 1/12 inch to decrease the angle by 5 degrees.

Step 6: Properly Address Your Angles

Use a slanted block for your angles. Start from 45 degrees and have a screw behind supporting the block

Step 7: Springs

Screw in two screws where ~ the pvc pipe starts and ends and add spring and a protective metal piece. So that the screws does not go flying with the springs.

Step 8: Acquire the Package

These simple steps should allow you to make the best marble canon, if you have any questions please comment below.

Step 9: Finding the Variable

Before you use the kinematic equations to find you initial velocity you must find Xoy ( the height of the end of the canon to the ground) as well as the time which the pink paper provides you with the formula.

Step 10: Calculate the Remaining Variables

Use the following variables and kinematic equations provided by instructor or this instructable to be able to find the initial velocity of your marble.

I hope you guys found this somewhat useful thank you and enjoy your very own marble canon