The bot uses the Lynx tracks and motors. The motor controllers are Parallax HB-25 (sold by Lynx). Radio is a combination of Hitec and Futaba. The chassis was designed and laser cut here. This was a blast to make and it performs very well. Can’t wait to demo it at the local club next weekend. The video is a bit “unusual”. Think you’ll enjoy it.
...Tiger
Note: I guess because this was my first post, the system won’t let me include the link. I modified the link above and you’ll need to add the dot com back in after tigertronics. I’ll see if I can get Jim to fix this tomorrow. Sorry!
Cool robot (and video). I want to do something like this to patrol my kitchen and chase my cat out when she wanders in there and I am not there. She opens drawers and such and gets in them. I mean she really gets IN them and hides. I already have my robot programmed to detect things coming up on it from behind. When it detects something from the rear, it will do a 180 about face and make a rude noise at the intruder.
Awsome! I always wondered how well the Lynx tracks worked on cement and outdoor ground, now I know they work great! Espcecially since the motors I have are a little more geared up!
Also, where’d you get the antenna from, looks good! 8)
The forum requires you to make a link free post, then wait 24 hours, before you can make posts with links. It’s a spam prevention thing.
That is the coolest video!
You did a great job on it!
This, from the same person who sent me the base rotate video… LOL
Inside joke really… The base rotate video has the injection molded base rotate, alone, nothing attached, panning slowly back and forth, back and forth, with classical music playing.
It was a theatrical masterpiece!
But this, this is truely incredible! Nice work. This video belong on youtube.
I like what you did! I have a question… how did you get the HB-25 motor controllers on there? Do you have a different base. I only ask cause I bought the set with the base and I don’t know where I am going to mount everything. I need to put on the hb25 controllers, a pan and tilt kit, a wireless camera and ping sensor on that, along with the propeller prototype board!
Tiger made his own main chassis panels to better fit the HB-25. Although they look really cool on the bot, the fans look like turbo jets, they are overkill on this chassis. The Sabertooth 2 x 5 will do the job.
Really enjoy watching the close-up shots of the Bot. Picked up on the fans on the rear - makes it look futuristic! Would be cool to use some of the PC fans that implement LED lighting into the fan unit! …now theres an idea…
What would be the advantage of using Two single Motor Boards over say a single Sabertooth 5 or 10W (that have dual motor control built-in)?
The HB-25 is a much higher current controller rated 25A continuous, 35A peak. Some of the newer sabertooth and syren controllers are at or approaching this level but I am not certain what is actually available yet.
I like the Sabertooth line - I’ve used the 2x10, and had no problems with it (running analog with PWM). I have the 2x25, although right now its sitting on my shelf waiting for us to get to that base. The motors I bought to drive with it are big 12 volt BaneBot gearmotors, that have a stall current of 42 amps.
The manual says 6-24 volt nominal, 30 volts absolute max. The switching frequency is 32 kHz.
You might want to look at the Devantech boards - they are single motor, but rated at 20 amps for 50 volts.
I already have my robot programmed to detect things coming up on it from behind. When it detects something from the rear, it will do a 180 about face and make a rude noise at the intruder. 