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Now that I have finished B.O.B., my get your feet wet bot, I have begun my next hack. This next robot will bridge the gap between Bob and my ultimate big robot. I am starting with a remote controlled B9 toy from Trendmasters. It was very limited in what it did, and the drive section was pathetic, but it was B9!
Before Pics:
Here is what B9 looks like now:
I have mounted clear LEDs in the appropriate colors in the chest at the bottom of the decal and have a flashing circuit that will blink them in the combination as seen on the series. Where the two large round circles are (white domes on the big guy) I will have my ping sensor. I have mounted pager motors in the antenna housings to turn the "sensors" as seen in the TV version. I have mounted red El Wire to his voice plate to emulate the original as well. I have also mounted a series of blinking LEDs to the "brain" section in the bubble.
Next is to work on the rotation of the bubble and torso, articulate the arms and claws, and make a real functioning tread section. For the tread section I am adapting the base from my RAD robot. I will keep you posted with pics as I proceed.
Thanks,
Bret
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Ndavid what controller are you using?
L298N dual H-bridge Specifically: cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160755601853
Ok that's what I sent Brett.
That's fantastic! Glad to know that 12v is the way to go. I think I will use a couple of those step down regulators so I don't overload them. Maybe one for left side and one for right side. I had just upgraded my wiring to 18ga, do you think that is good enough for the 12v?
@ndavid79 - that is the same motor controller I used in Bob. So that works well with your RAD tracks and 12v?
Don't worry about the step down/voltage regs on the track motors, just dial the PWM back, to the motors its the same difference, but should give better torque. I only ran mine for like 10min so far, as I just temp wired it to test before starting in on building it a body. IIRC, I had set the PWM at somewhere around 70-75% to get a decent indoor speed (meaning not to fast) with just the 6.2lb battery on it, unfortunately I don't know what gear it was in. Turning on these rubber tracks will always be much harder on the motors then going straight, mine (my RAD tracks & my complete unmodded RAD 2.0) makes a more struggling when turning as well. Can't promise anything, but I'll try to get it wired up again & take a video this week.
18ga should be good, it's what I'm using.
Brett I'm sending upgraded wire to go from batt to motor controller , and 12 ga pure copper multistrand from controller to motors , remember to twist the wires , it reduces electrical rd interference with WiFi and Bluetooth
You should have a goody box tommorow! Ha ha , lets see b9 on 12v