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Tank Treads Kit (#28106)
For the Boe-Bot, Shield-Bot, and ActivityBot robot kits
Treads help your robot access varied terrain such
as carpet, small rocks or imperfect surfaces. This
kit involves removing your robot’s wheels (and
encoders* if present), repositioning servos, and
adding the treaded drive train.
*The Tank Treads Kit is not compatible with Boe-
Bot Encoders or ActivityBot Encoders; both of
those rely on spoked wheels that are removed to
mount the treads. See Kit Compatibility on page 4
for tips on using the Tank Treads with other
Parallax Small Robot Kits and Accessories.
Bill of Materials
Part #
Description
Qty
700-00002
4-40 Machine Screw, 3/8”
8
700-00003
4-40 Nut – 700-00003
24
700-00007
4-40 Machine Screw, 7/8”
8
700-00028
4-40 Machine Screw, 1/4”
8
700-00059
#4 Lock Washer
8
710-00008
1.5” Screw
2
713-00003
1.25” Standoff
2
721-32009
Acrylic Side Panels
2
713-00027
Spacer Disks
2
721-28106
Plastic Wheel and Rubber Tread set
1
725-00013
Servo Horns – may be standard X-type or round disk
2
Tools Needed
You will need a #2 Philips screwdriver, wrench, and a 3/32” drill (or hobby knife like an X-acto
®
knife).
Assembly
Step 1:
From the set of wheels, cut out the following and trim off any burrs:
(2) large wheels (with teeth)
(2) large wheels (no teeth)
(6) medium-sized wheels (no teeth)
The remaining wheels are not used for this application. However, the wheels with sprockets can be modified
and used for customization if desired.
Copyright © Parallax Inc.
Tank Treads Kit (#28106)
v3.0 2/20/2014 Page 1 of 4
