A-Pod 3DoF Tail Assembly Instructions

Last modified by Eric Nantel on 2026/04/02 16:33

The A-POD Tail Assembly Guide

Updated November 4, 2011

Removing the Parts from the Panel

The PVC parts need to be carefully cut out of the panel. A thin, flat blade exacto knife will be very helpful. Simply cut through the tabs to remove the parts.

Important!

DO NOT overtighten screws on the PVC parts! The PVC will compress and will become weaker as a result.

Preparation

Remove the nylon servo horn from each servo and replace with a metal servo horn. Be sure to keep it in the same orientation.

A-POD Tail — Assembly
Step 1 / 10

Attach a ball bearing to a Multi-purpose bracket as shown. See the diagram below for detailed information. Make two of these.

Ball bearing assembly diagram
Figure 1.
A-POD Tail — Assembly
Step 2 / 10

Attach the two brackets together as shown using two 2-56 x .25" screws and two 2-56 nuts.

2x
2-56 x .250" Phillips screw
2x
2-56 nut
Figure 2.
A-POD Tail — Assembly
Step 3 / 10

Attach four 1.0" hex spacers to the "bad" side of the top panel with four 4-40 x .375" screws.

4x
4-40 x .375" hex socket screw
4x
4-40 x 1.0" hex spacer
Figure 3.
A-POD Tail — Install Electronics
Step 4 / 10

Using four 4-40 x .250" hex socket head screws, attach four 0.75" hex spacers to the Bot Board II as shown. Insert the Basic Atom Pro 28 chip into the socket.

4x
4-40 x .250" hex socket screw
4x
4-40 x .750" hex spacer
Figure 4.
A-POD Tail — Install Electronics
Step 5 / 10

Attach the Bot Board II to the top panel of the tail using four 4-40 x .375" screws.

4x
4-40 x .375" hex socket screw
Figure 5.
A-POD Tail — Assembly
Step 6 / 10

Slide the two "T" shaped PVC pieces into the slots as shown. Attach the bottom panel using four 4-40 x .375" hex screws.

4x
4-40 x .375" hex socket screw
Figure 6.
A-POD Tail — Assembly
Step 7 / 10

Slide the bracket assembly into place as shown.

Figure 7.
A-POD Tail — Assembly
Step 8 / 10

Slide a HS-645MG servo into the bracket and secure it using 3mm hardware as shown. Attach it to the PVC with four 2-56 x .375" screws.

4x
3mm servo hardware set
4x
2-56 x .375" Phillips screw
Figure 8.
A-POD Tail — Attach to Chassis
Step 9 / 10

Slide the tail assembly in place in the rear of the chassis.

Figure 9.
A-POD Tail — Attach to Chassis
Step 10 / 10

Attach a HS-645MG to the robot using 3mm screws, washers and nuts. Connect the servo horn to the chassis using four 2-56 x .375" screws.

4x
3mm servo hardware set
4x
2-56 x .375" Phillips screw
Figure 10.
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Created by Eric Nantel on 2024/07/03 09:20
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