Looking for feedback on a new 2 DOF hexapod design

Lynxmotion Legged Robots
20

I Still think the Lynxmotion logo needs to chnage colors; from Yellow outline to aluminum! 8)

21

Show me
 :wink:

22

Uh oh
 the glove is down
 :stuck_out_tongue: :wink:

23

You’re in beeeeg twubble now. :slight_smile: He knows you can do cool graphics


8-Dale

24

:open_mouth: Ummmmmmm
 Gulp!

You’re ON! :smiling_imp: :laughing:

25

I have noticed this as well when I tried getting stuff in blue or yellow. So, I guess the basic robot color is going to be black except where I can inject a bit of color into it. :wink: Black does look a bit more dangerous


8-Dale

26

While not necessarily revolutionary I have been experimenting with the tibia on this prototype 2DOF hexapod. There is a spring that allows the tip if the tibia to float while the hex is walking. The middle leg takes the brunt of the floating when the hex is walking forward, but the fore and aft tibias do more floating when the hex is turning in place.

The tibia needs to be made from aluminum, and I need to decide if the femur will be two plates or just the one. Trying to keep the costs down.

The chassis is now aluminum


Here is an image of the bot.

Here is a closeup of the leg.

Here is the chassis with the optional side panels.

27

WOW Jim, I love the one with the Optional Side panels. When would these be available?

28

Love it Jim.

I used to have the original hexapod 1, quadrapod, and hexapod 2 PE
 but those got stolen a few years back along with a bunch of my stuff! Coulda been collector editions! I’ll miss the yellow plastic look, but overall I think the aluminum designs are much more practical.

29

I’m sorry, it looks to good. you’re gona hafta re-do it. :laughing:

Are those Lynx made spring shocks?

30

I’ll bet they are! If you look closely, You can see the lexan.

31

The shocks are made from laser cut lexan. I may have them injection molded. I dunno yet. It’s getting closer


32

Put the CH3-R legs on this for a new 3DOF inline hexapod. :smiley: It would be (and look) wickedly cool! :slight_smile:

8-Dale

33

Nah. Leave it the way it is. It looks cool already.

34

I think Jim saw my Johnny 5 mods and got “Shock Envy”

:smiley:

35

I think you made Jim “a little bit shock-n-roll”

That shock on the J5 was a real shocker to see, I was quite shocked! :open_mouth:

36

Hey wait a second


Aside from my J5, I also had a suspiciously similar idea in Highschool! Proof is even posted on my project pages:

lynxmotion.com/images/html/proj029.htm

lynxmotion.com/images/html/proj037.htm

I demand royalties Jim!! rofl :laughing: :laughing:

37

You have some good ideas there! I can see some possibilities for adding contact and force sensors to a foot like that.

Hey Alan, are you listening??

8-Dale

38

Hi Dale,

What’s that? Let me turn up the volume a little


Yeah, that’s a foot alright! A little compliance in a leg wouldn’t hurt. Pad size is about right for a pressure or capacitive sensor as well.

I don’t quite see the function of the linkage on the new 2DOF 'bot (other then transfer of motion). Is it to provide some sort of “soft” linkage to the servo? The “Crust Critter” or some such 'bot was complaining about that, I think I read.

OK ready to copy. I’m just wondering whether or not to take time to check out the touch sensor chips I found. I’ll need to make up a little PCB with a PIC and the QT1081 8-KEY QTouch Sensor IC. Also need to have your I2C interface working! ;>)

It actually looks like a minimal mod to my aluminum tibia to incorporate this touch sensor. It could probably work with ANY of the tibia designs, as an after-sale mod.

I think I’m going to need a couple of Schmart boards (both QT and PIC are SMT). I’ve got a circuit design and the firmware already in mind.

qprox.com/products/qt1081.php

When and if to work on it is the question!

Alan KM6VV

39

WOW, how did this pass by my radar? :open_mouth:

Really cool Jim! I geuss the strength to weight ratio is much higher than the lexan version and also somewhat lighter becuase of less material? :confused: