Strider Camera Robot V8

This intructables show the building steps of Strider Camera Robot V8.

This is the 8th iteration of me building the Strider walking machine, you may find my previous related instructables here:

• Strider Camera Robot
• Strider Camera Robot V2
• Strider Camera Robot V6
• Camera Robot Controller

The materials required are very similar to Strider Camera Robot V6, just a little bigger Lipo batteries:

• TTGO T-Journal ESP32 Dev Board
• OV2640 or OV3660 camera module with a little bit longer FPC
• Two 4.3g servo with 360 degree rotation option
• Two 702024 Lipo Batteries
• 1mm Diameter stainless steel rod
• SMA Coaxial PCB mount Jack with a short SMA Antenna or other PCB Antenna
• Four 4mm M2 screws
• Around 60-100 pieces of 4mm (actually 3.6mm) M1.2 screws

Please download and 3D print the parts at Thingiverse:

https://www.thingiverse.com/thing:6324533

• leg1 - leg4 print 12 copies
• body and side print 2 copies
• all other parts print 1 copy

I suggest crankshaft mold should be the first printing, so that you can do next step in parallel.

The stainless steel Crankshaft is the special parts in this version, it should be less friction compare with V6. Stainless steel rod is a little bit hard to bend, I am using a special Dental Pillar to help me make it.

First you should mark the rod with all the bending point, it is at:

3mm, 7mm, 14mm, 18mm, 22mm, 28mm, 32mm, 36mm, 42mm, 46mm, 48mm

It will make a crankshaft in 4mm radius. Adjust the crankshaft in the right shape is arbitrary, so I make a 3D model crankshaft mold to help me check it in the right track as show at the above video.

Cut four 25mm long stainless steel rod for the leg axis.

T-Journal have an edge mount SMA connector originally. I would like the antenna perpendicular to the board, so I resoldering and replace it. There are various 2.4GHz antenna options you can find on the web.

The servo patching is as same as Strider Camera Robot V6 step 2 servo patch.

Install the servo horn to the servo. Use a 1 mm drill bit drill a hole from the horn side to the axis center hole. the servo axis will also make a pit at the same time.

In the body assembly video, it only installed 1 Lipo battery. Actually the body designed 2 room for installing two 702024 Lipo batteries. 2 batteries can give more battery life and better body weight balance.

The program step is as same as the Strider Camera Robot step 26-28.

It's time to show off this tiny gadgets to your friends!

This version 3D model reserved rooms for IR sensors, it can help to make the robot more intelligent. Hardware and software details will update soon...