Thanks! :mrgreen:
You should strongly consider using larger wire to carry the 2-4 amps required by the robot. You might have 6.00vdc on the supply, but I doubt it is all making it to the servos.
Ok, I’ve run out of thicker wire so I’ll need to get some more. Thank you for pointing that out.
Awesome looking style!! I like the shape of your legs. Err, better make that the robots legs.
Also, the spider dance made me smile Im just curious, what is your goal for this robot?
Well to be honest, I just wanted to see if I could make a hexapod robot/quadrapod robot. It’s been a lot of fun so far and it’s actually made my brain think about design/aesthetics and other things (i.e. motion). If the robot was to have a purpose, then it would probably be a battle-bot; I’m working on a head with pincers/mandibles so that it can bite and grab things and then if I can make a few (with different designs), I can have a tournament with people fighting them against each other (like robo-one for hexapods). Seeing that would be quite cool! :mrgreen:
Cool! I started my project with the idea to build a robot that could compete in this competition: mech-warfare.com/ but what happened was I started getting really interesting in coding and the actual building itself, I have enjoyed (and been frustrated) at the long and fruitful journey of getting the bot to work how I want it to
Pincers does sound awesome though, Ill be excited to see how this project turns out!
I know exactly how you feel. For some reason, every time I find a problem, it makes me happy becuase I can then work out what’s wrong and then put it right.
I took a look at the site and some of those mech (thingys) are very cool. I’m assuming that any type of robot can enter becuase I saw bipeds as well as quadrapods. I’ll have the pincers ready soon becuase I’m currently working on a slightly new design for the robots parts (mainly the feet but the other parts will be different colours and will look nicer because I have chosen a partially-reflective material) but I’ll upload photos of the new parts so that people can vote on which they like better so that the nicest can be used on the robot.
I’ve finished cutting out the new feet for the hexapod and I would like people to give their opinions on which one they prefer - the original (RED) or the new (BLACK) one.
i think you are doing a nice job with your robot. thanks for sharing. i have concerns about the new black leg design. i feel that the foot or “Tar” might be sharing to much contact with the ground and this will course you walking problems. Best to keep the surface contact to a minimum.
Ok no problem, I can make it narrower but which do you prefer?
the black one. Although i would like to see it a bit thinner. its a very wide tibia. hope this is constructive.
maybe a slight outward curve towards the bottom too might look cool too.
I second Jonny. But even a tars with 3 points is going to be a problem. The length (and angle) between the servo axis and tars is very important. If you want a smooth movement, stick to a single pointed tars. When you’ve got more then 1 point, the tars can tip from one point to the other. This can change the length and angle of the tibia. This will mix up the IK solution.
Xan
Thank you for the new foot, the design is very useful because now I have a good photographic idea to work from.
I’ll change to a single “tars” (those are the spikes on the bottom of the foot, right?) for smoother movement so thank you Xan for pointing that out.
With all the new pieces, it’s starting to look like a pretty cool spider robot. I’ll upload some pictures when I’ve completed all of the modifications.
look forward to seeing your progress.
My advice would be to use two pieces attached with a spacer on the servo end, and directly together on the foot tip. This will add a lot of strength to what is normally flexible plastic.
Ok, I’ll do that. Thank you!
Here’s an updated version of the spider robot. I haven’t been able to make all the changes (i.e. making the feet thinner, etc.) but I’m working on it (slow and steady wins the race ).
I’ve realised that I don’t have enough space for the circuit board and the battery pack so I’ve decided to construct an abdomen to store the circuit board and then I’ll keep the battery pack in the body. I should have that completed in a day or so and then its onto the the head with the pincers - the final spider robot should look pretty cool! :mrgreen:
Maybe Board(s) on top, battery below?
Alan KM6VV
I thought of that at first, but then I wanted to have everything concealed/out of the way so I decided on the abdomen idea (plus the abdomen will probably make the whole thing look more like a spider :mrgreen:).
Hurray, I’ve finally got the HS-645MG servos and the robot is looking good!
I’ve got it walking (well, sort of anyway) and I’ll upload a YouTube video soon! :mrgreen: