Yes powering the SSC-32’s VL (logic) seperately should prevent the SSC-32 from browning out (resetting), if that is what is happening. It will prevent it from loosing the servo offsets that are sent to it when you start the machine. Also remember to make sure the SSC-32 is on before you start the Atom. No you don’t need to change your program or reload it.
When the Bot Board is powered up, one of the first things it does is sends the SSC-32 the servo position offsets. The SSC-32 will remember these until it is powered off. So if the SSC-32 resets, you wouldn’t necessarily see anything unusual because the Bot Board is sending servo position updates constantly.
LOL, you just solved my problem for why the offsets work some of the time.
I often plug the Botboard in before the SSC-32. Sometimes the other way around. So i would guess it’s a combination of me powering the botboard first and also the SSC-32 resetting.
I remember thinking the other day when I was turning it on, “I wonder if it makes difference which board I power up first?” … “Nah, probably not.”
Here you go. I shot some video with my digital camera but it’s terrible quality, even after I enhanced it so it wasn’t so dark.
I have all the standoff braces off the legs except the front right so there is alot of sideways flex in the legs, except the front right. I’m changing them over to lighter ones but I’m waiting on my Carbon Fiber tubes to arrive. But if you want to see it anyways, here it is.
I still have to tinker with the programming a bit. The offsets aren’t perfect and the middles legs don’t work when I try to crab walk? But it moves forward, turns right/left, attacks, flies and crouches fine. It’s alot sturdier with the braces in the legs, as you could imagine.
I have about 6 videos but it takes so long for Photobucket to upload them.
Nothing like video of a hexapod that’s twice as big as a legal-sized filing cabinet.
Here is the first video: At the end you can see it’s confused when I try to get it to crab walk. Silly hexapod.
Very nice work! I am quite impressed with all you have done with this huge hexapod. I wish I had such mechanical and fabrication skills. One of these days we will see what I can manage with Walk 'N Roll. I figure all the side trips I am taking, like into the biped world, are just allowing me to collect brackets for Walk 'N Roll.
That was the default speed (rather slow). It goes alot faster but works better with the braces in the legs. It just too hard to position my camera on the desk, press the button without moving it and pick up t e controller at the same time. LOL
I’ll get someone else to film it when I get the standoffs back on the legs.
I got my Carbon yesterday but didn’t know it. So I have the new cross members installed and they make a huge difference. There is hardly any flex in the legs now. They are rock solid.
I was going to finish up the wiring and get some good video of it but our neighbors basement flooded today. I spent most of the afternoon and evening helping them move their stuff and pump it out.
I’m, working on the wiring now and if I get done soon, I’ll shoot a faster video for you. It is actually very quick.
I’m really happy with the results of this. I was worried the whole time that it just wouldn’t work or that I overlooked something. But it has alot of power and with programming aimed specifically for it, I think it would be very impressive. There seems to be a few things out of place when it tries to crab walk and walk backwards. It just sits there and wiggles around. Like it’s confused. But forward and rotating works great. Time to add the tracks once I get the walking bugs worked out…
Its most likely “confused” becuase the ofset values are wrong (if thats what their called). Once you fix that in the programming the servos should move accordingly to where they should.
