Set 4 - Gears and Pulleys

Cogworks Set4 provides the necessary spark to get middle and high school students enthused about simple and complex machines.

Set 4's unique design features include a 20" by 20" rectangular matrix board with a plethora of tapped insert holes. Set 4 includes all the parts listed in the Set4 kit list tabulated below.  Please see the Set10 description for a full explanation of the Cogworks stacked pulley/gear drive system.

Set 4 has a great sampling of pulleys, gears and hardware, it comes packaged with the mechanical arrangement shown right. The arrangement features an interesting design featuring two sub gearboxes, idler pulleys and belt systems. We call this as delivered machine "Discovery". 

Extra hardware pieces are stored in a rectangular hinged cherry box 4" by 10". Although Set4 does not have a storage case the smaller hardware can be kept safe in the supplied box. Set4 features rubber feet to prevent sliding on a table. Note: Set4 has same size size matrix base as Set5.

Set5 features additional gears, pulleys, hardware and a dovetailed hardwood storage case and parts tray. Mounting Holes Note: The Set4/Set5 matrix board shown  has a solid brass bonded thru bushing in each corner, 1/4" internal diameter. The base is a solid 1" thick with internal steel tapped inserts. The thru bushing can be used to solidly mount the base to a wall or exhibit. A series of set4 bases can easily form a larger exhibit with a different mechanical arrangement on each base. The corner holes can also be used to mount posts to mount a polycarbonate display dust cover.

Packaging Set4 includes a hinged hardwood box with velvet lining to store all small parts & tools. Set 4 is shipped shrink wrapped in a rigid cardboard box.

Read the installation tutorial.

Parts List     Set 4

• Qty2~36 tooth gears  18cm diameter
• Qty8~24 tooth gears  12cm diameter
• Qty5~12 tooth gears  6cm diameter

• Qty2~12cm pulley 
• Qty8~6cm pulley

•     Qty 1 - Ash crank  with brass drive "dogs", brass rotary crank. 

• Qty1~20cm belt
• Qty1~40cm belt
• Qty1~60cm belt
• Qty1~80cm belt

• Qty 2 ~ Stub Shaft -1U
• Qty 2~ Stub Shaft  -2U
• Qty 4 ~ Stub Shaft -3U
• Qty 2 ~ Stub Shaft - 2U
• Qty 2~ Stub Shaft - 5U 

• Qty 12 ~ Split Shaft Collars - Stainless Steel

• Qty 2 ~ Delrin Damping Washers

• Qty 6 ~ 1 unit spacer
• Qty 2 ~ 2 unit spacer

• Qty 14- ~ 0 unit connector
• Qty 5 ~ universal connector

• Qty 1 - Collar Wrench
• Qty 1- Wooden Wrench

• Qty 2 - Acrylic pointers with laser engraved markings
• Qty 2- Brass stub shaft knurled accessory screw

• Qty 1 - Matrix board. 19" by 19" internal tapped inserts. Precision corner brass bushings with 1/4" holes.Qty 4- Rubber Feet, insert in matrix board corner holes.

• Qty1 - 50cm torque beam/matrix board extension. (Not shown in picture)
• Qty2 - Solid brass torque beam attaching screw

• Qty 1 - Cherry Wooden small part storage box with velvet lining

• Qty 1 - Reference Guide