PP Shredder Basic

Author avatarPPatASU | Last edit 22/10/2021 by PPatASU

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This tutorial documents the build process of Precious Plastic Pro Shredder, as supplied by Citizen Scientific for the North American context.
Difficulty
Medium
Duration
2 day(s)
Categories
Machines & Tools, Recycling & Upcycling
Cost
6000 USD ($)

Materials

Tools

Step 1 - Required Tools

1/2" Socket wrench

11/16" Socket"

6mm Allen/Hex Wrench

Locking Pliers

Adjustable pliers

Metal File

Screwdriver


Step 2 - Attach the Bearings to the side plates

Parts Needed:

2x 6mm 01.04.01 Side plate

2X bearings

4X Countersunk Hexagon Bolts (M10 x 30)

4X Nuts (M10)


Tools Needed

6mm allen

11/16" wrench


Put the bolts through indented side of the side plate and into the bearing holes.

Secure with nuts



Step 3 - Build the blade shaft

Parts Needed:

5x 01.04.03 Knife 1

5x 01.04.04 Knife 2

4x 01.04.05 Knife 3

1x Shaft

2x 01.04.02 6mm Bearing Spacer

2x 01.04.09 3mm Bearing Spacer

13x Knife Spacer


Tools Needed:

(optional) vice grip/locking pliers


Orient the shaft so the longer blank section is facing up.

Number the faces 1-6(it doesnt matter where you start, as long as it reads left to right).


Slide Knife 1( knife with only 1 notch) onto the shaft so the notch is on the edge between faces 1 and 2. Ensure that the blade point, points towards face 2.


Add a Spacer


Slide Knife 2(knife with 2 notches) onto the shaft so that the first notch is between faces 1 and 2 , and the 2nd notch is between faces 2 and 3.


Add a Spacer


Slide Knife 3(knife with 3 notches) onto the shaft so that the first notch is between faces 1 and 2, and the 2nd notch is between faces 2 and 3. and the 3rd notch is between faces 3 and 4.


Add a spacer


*This completes 1 SET of knives.


Repeat for the next set, but begin by placing the notch of Knife 1 between faces 6 and 1.


*This completes 2 SET of knives.


Repeat for the next set, but begin by placing the notch of Knife 1 between faces 5 and 6.


*This completes 3 SETs of knives.


Repeat for the next set, but begin by placing the notch of Knife 1 between faces 4 and 5.


*This completes 4 SET of knives.


Repeat for the next set, but begin by placing the notch of Knife 1 between faces 3 and 4. This Set will only use 2 blades.


Add 3mm spacer to shaft. Add 6mm Spacer to shaft.

Repeat on other end.


Step 4 - Combine Blade shaft and side plates

Orient the blade and side plates as seen in the picture.

Slide the bearings onto the shaft, with the bearings facing out.

Make sure that the extra hole (double hole?) is facing the back side.



Step 5 - Shredder Box Construction

Parts:

Preconstructed box (narrower)

Preconstructed box (thicker)


*ORIENTATION: Facing the side plate with the longer shaft, the side with two holes in the upper left corner is the back of the shredder box.

*ORIENTATION: The preconstructed boxes have a top side with 1 hole, and a bottom side with 2 holes.


Place the narrower of the two pre-constructed boxes inside the two side plates. The narrower box has a small lip, that should be on the bottom, and facing towards the knives.


The thicker box mirrors the narrower box (one hole facing up) Tabs on the preconstructed boxes will slide into holes in the side plates.

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