Product Overview

The Magic Sprocket. 

This sprocket allows the use of two runs of #25 series chain inside 2x1 box tubing for a perfect fit, prohibiting the chain from skipping off. Build your own chain-in-tube drive with your favorite wheels and the help of this magic sprocket.

This product was originally pioneered by Anthony Lapp from 221 Robotic Systems.  Additionally, special thanks to Ty Tremblay and Team 319 for their insight and design advice on this product. This product builds upon this popular idea by adding chamfers to the teeth of the sprocket, as well as bosses on the faces to prevent the sprocket from rubbing the outer races of adjacent bearings.

Specifications

• Bore: 0.50 in. Hex
• Boss Diameter: 0.75 in.
• Material: 7075-T6 Aluminum
• Number of Teeth: 17
• Outside Diameter: 1.492 in.
• Overall Thickness: 0.49 in.
• Pitch Diameter: 1.361 in.
• Series: 25
• Sprocket Thickness: 0.1 in.

Documents

CAD File(s)
am-3999 17T 25 Chain Double Sprocket For WCD.STEP

Layout Print(s)
am-3999 17T 25 Chain Double Sprocket For WCD.PDF

Specifications:

• Tooth Count: 40
• Diametral Pitch: 20
• Pressure Angle: 14.5
• Pitch Diameter: 2"
• Face Width: 0.438"
• Material: 4140 Steel
• Dog Profile: 4 Tooth, 90 Degrees Opposed
• Bearing Bore: 1.124"
• Weight: 0.226 Lbs

Specifications:

• Tooth Count: 56
• Diametral Pitch: 20
• Pressure Angle: 14.5
• Pitch Diameter: 2.8"
• Face Width: 0.438"
• Material: 4140 Steel
• Dog Profile: 4 Tooth, 90 Degrees Opposed
• Bearing Bore: 1.124"
• Weight: 0.30 Lbs

This is a steel ball valve, with a large plastic handle. On mobile robots, this can act as a vent valve. It has two ports, one being a 1/4" NPT male and one being a 1/4" NPT female port

Specifications:

• Weight: 0.19 pound
• Width: 1.71 inch
• Height: 1.45 inch
• Hex Body Width: 0.82 inch
• Material: Steel, chrome plated
• Manufacturer: Midwest Control
• Part Number: CMVL-25
• Capacity: 450 psi (cold working pressure)
• Medium: compressed air
• Temperature Range: -4 to 250 degrees F
• Ports: 1/4" NPT (one male, one female)

Do you need an odd number of chain links? Tired of dealing with cotter pins in old school "half links"?  Love using the DarkSoul or ARC chain tool for everything? These are the links for you!

These links add one and a half links to a run of chain making for easier cleaner alternative to half links. Use a chain splicing tool or two master links to install them. No more lost matches from a failed half link!

Specifications

• Chain Size: #25, #35
• Material: Steel
• Pitch: 0.25 in., 0.375 in.
• Style: Roller Chain

This gear is a press fit gear specifically designed for the 2 Stage EVO Shifter Output shafts, as part of the encoder setup.

Specifications:

• Tooth Count: 20
• Diametral Pitch: 32
• Pressure Angle: 20
• Pitch Diameter: 0.625"
• Face Width: 0.62"
• Material: 1117 Steel
• Bore: 0.372" Round
• Weight: 0.03 Lbs

Specifications:

• Tooth Count: 85
• Diametral Pitch: 32
• Pressure Angle: 20
• Pitch Diameter: 2.65"
• Face Width: 0.50"
• Material: 1117 Steel
• Bore: 0.375" Hex

This is to mount a pneumatic cylinder to your Shifters.

Specifications:

• Material: Aluminum
• Thickness: 0.29"
• Weight: 0.025 pounds

Specifications:

• Tooth Count: 18
• Diametral Pitch: 20
• Pressure Angle: 14.5
• Pitch Diameter: 0.9"
• Face Width: 0.375"
• Material: 4140 Steel
• Bore: 0.375" Hex

This is the Carrier Plate w/ Sun Gear for the AM Planetary gearbox. Five planet gears (not included) ride on the dowel pins pressed into this part. Referencing the picture above, those dowel pins are protruding out the bottom side of the carrier plate.

Specifications:

• Weight: 0.07 pounds
• Diameter: 1-3/8"
• Length: 15/16"
• Tooth Count: 15
• Diametral Pitch: 32
• Pressure Angle: 20 degrees
• Pin Diameter: 0.125"
• Gear Material: 1117 Steel

Specifications:

• Tooth Count: 25
• Diametral Pitch: 20
• Pressure Angle: 14.5
• Pitch Diameter: 1.25"
• Face Width: 0.5"
• Material: 4140 Steel
• Bore: 0.5" Hex

Specifications:

• Tooth Count: 30
• Diametral Pitch: 20
• Pressure Angle: 14.5
• Pitch Diameter: 1.5"
• Face Width: 0.357"
• Material: 4140 Steel
• Bore: 0.375" Hex

The Plate spacer goes on the opposite side of the RAW box from the CIM Motor. 

Specifications:

• Material: 6061 Aluminum
• Length: 3.5"
• Height: 1"
• Thickness: 0.312"
• Weight: 0.07 Pounds

This is the aluminum shaft plate for our 3 Motor Toughbox. A standard Toughbox could be converted to a 3 Motor Toughbox by using this plate and also the 3 Motor Toughbox Motor Plate.

Specifications:

• Size: 5x5x0.125 inches
• Material: 6061 Aluminum
• Weight: 0.274 pound
• Finish: Tumbled