3DoF Leg Assembly Instructions v1.0

Last modified by Eric Nantel on 2024/07/03 09:20

3 DOF Leg Assembly Instructions.

Updated 08/30/2007.

Safety first! Wear eye protection and never touch a powered robot!

Note: Do not use Loctite or thread locks on the assembly. They are not necessary and may cause damage to the Lexan.

Important! If you are building legs for the EH3-R using the Bot Board / Basic Atom 28, and SSC-32, then you need to build three right legs and three left legs. This is also true if you are building for a standard insect looking hexapod such as the EH3. However, if you are building for the EH3-R using the ServoPod then you need to make 6 right legs.

Image of completed Right (robot's right) leg.

Step 1.
Attach an "L" connector bracket to a Multi-Purpose bracket as shown, using two 2-56 x .250 screws and 2-56 nuts.

2 x	2 x

Figure 1.

Step 2.
Attach a Multi-Purpose bracket to the "L" bracket as shown, using two 2-56 x .250 screws and 2-56 nuts.

2 x	2 x

Figure 2.

Step 3.
Attach the ball bearing that comes with the Long "C" bracket or Lexan chassis to the Multi-Purpose bracket as shown. See the diagram below for detailed information.

Figure 3-1.

Figure 3-2.

Step 4.
Attach the "C" bracket to the Multi-Purpose bracket as shown. See the diagram below for detailed information.

Figure 4-1.

Figure 4-2.

Step 5.
Attach another "C" bracket to the "C" bracket already there, using two 2-56 x .250 screws and 2-56 nuts.

2 x	2 x

Figure 5.

Step 6.
Attach the "C" bracket to a Multi-Purpose bracket as shown, using two ball bearings. See the diagram below for detailed information.

Figure 6-1.

Figure 6-2.

Step 7.
Attach a Tubing Connector Hub to an "L" bracket as shown, using two 2-56 x .250 screws and 2-56 nuts.

2 x	2 x

Figure 7.

Step 8.
Attach the other side of the "L" connector bracket to the Multi-Purpose bracket as shown, using two 2-56 x .250 screws and 2-56 nuts.

2 x	2 x

Figure 8.

Step 9.
Connect a 3.0" tube to the hub using a 4-40 x .250" screw. Attach a rubber foot to the end of the tube.

1 x

Figure 9-2.

Step 10.
Install the servos as shown, using the included 3mm hardware, and two #2 tapping screws. Note, for quick prototype assembly, you can use rivet fasteners as shown in the image (sold separately: NSRF-01).

2 x	12 x

You can now move on to the body assembly instructions.

Figure 10.

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Created by Eric Nantel on 2024/07/03 09:20