OK, after spending almost 24hrs charging my batteries, installed them, did the charger on/off, turned him on and he did the start up routine.

Light saber worked
Arms worked
Put him into antomonous mode and this is where it went pear shaped, he just went round in circles, sounded like the leg motors weren't working properly.

He also just bumped into things and the leg motors kept spinning.

I have triple checked all the cables and they are correct.

Anyone else experienced this?

Before you posted your reply (thanks by the way) I tested him again, he jerked forward, rotates head.
Put in antomonous mode and he goes round in circles as if he is struggling to know the surroundings, so I'm thinking leg sensors (even though the checks during the build were ok)
The centre leg bumper sensor work.
What are the 2 sensors behind the grill suspose to detect?

How big is the space your testing him in.

What type of floor surface are you running him on.

You will need to double check the labeling of the wires and conections.

When he is turning are both motors running or just one this could point to where the fault is.

Ok space is good.

What surface is he running on?

The jump forward on switch on tells me the motors are connected correctly. If the wheels are spinning on a polished surface they will sound strained.

I have to ask questions that eliminate causes of a problem as I do not have your R2 in front of me.

A video would help a great deal thanks.

Hi, It looks to me that the foot sensors are picking up the grout lines in your floor and this is making him think there is a step there. If you look closely his foot runs over a grout line he stops and turns then it happens again when he hits the next one.

Can you test him on an untiled floor or a laminate one to see if he has the same reaction. I have laminate throughout the grond floor of my house and I dont get the reaction your getting on a laminate floor.

His foot sensors work.
His shoulder and front sensors don't work and those ones go into a separate module!
Possibly faulty module?

i bet that one or two cables are plugged in the wrong way on the main board.
another builder on the Facebook group had one cable backward the the whole r2 would not initialize.

so double check each sensor connection very carefully.

i think that mixed up cables will be the #1 problem folks have.

Im a little concerned in your video that the front of his body hits anything before even contacting the bumper on the foot. Or did i not watch it properly?

Did your sensor circuit board work correctly when we started the leg sensor testing? Iirc a few people had problems that nothing was working as instructed in the magazines etc. Replacing the circuit board corrected the fault at the time amd the tests worked correctly.