Brian Lippincott's hexapod

Hi Brian,

Thanks for your comments.

That’s ok, no hard feelings :wink:
But I meant what I said, your hex really deserves to have his on thread! :slight_smile: Please feel free to let me know if you need some help with something.

Xan

Hi Brian,

Your hexapod are extremely well made, very pro looking. I love your tibia design and how well you made it fit to the custom servobracket. Looking forward to see it walk.

The only con is the MG995… To be honest I think your hexapod deserve more than that :wink: But it’s a great start and they can easily be replaced.

OK, I’m going to try some image posting of the Ox18 Hexapod. BTW, anyone have an idea or two for a better name? I just called it the Oval/18 servo Hexapod, or Ox18. . . .boooooooorring. . . . . . :unamused:
So I’ll try one and see the results, then post more.
http://img296.imageshack.us/img296/8131/ox18ps28ow8.jpg

Let’s see how that looks. I’m using the recommended size for forums as suggested by Image Shack.

COOL!!
Some of the pics I was trying to post when I first came to this forum:
http://img174.imageshack.us/img174/1631/ox18ps2js6.jpg
http://img524.imageshack.us/img524/8421/ox18ps24vi6.jpg
http://img521.imageshack.us/img521/4599/ox18ps27yk1.jpg
A close up of the “brains” showing the new “V2” chip I added to the SSC-32. I mounted the PS2 reciever ona piece of the same pvc plasic sheet I used under the boards, then bolted it to the fore deck with 1/4" standoffs. I just make all my own standoffs from 1/4" dia aluminum stock.
http://img257.imageshack.us/img257/2131/ox18wiredyv8.jpg
The stand the bot is on is a piece of 1/2" thick HDPE given to me by another machinist, and I welded bolts to the ends, then turned them straight on a lathe. The top of the stand screws into a Delrin block bolted to the bottom of the hex. It makes for a very sturdy stand for setting the legs, photo ops, and general maintenance.
http://img523.imageshack.us/img523/534/ox18ps212ta8.jpg
Bottom of the bot shows the battery and difference between the bottom deck and upper deck.
http://img222.imageshack.us/img222/3186/ox1829hr4.jpg
Thorax only. Shows board and battery layout. Cant’ wait to get some walking video . . . .

A couple more images from my robot works:

http://img82.imageshack.us/img82/1655/ox18ps29kz2.jpg
Examples of the CNC parts, some not used as yet.
http://img187.imageshack.us/img187/4285/ox1818br4.jpg
A prototype coxa joint and the final product - - - this time. 8)
A conventional machine shop is irreplaceable, but I LOVE CNC!! :laughing:

Nice work! I really like the CNC work. I too have been making my parts with CNC.

Current 'bot project will have wheels.

Alan KM6VV

Excellent! WOW :open_mouth: Your parts look really great!

Again I wish I had a CNC … :cry:

Great pictures!

I totally agree with Zenta and Alan! Damn those parts look cool!! Machine them by yourself or did you send drawings to a machine shop?

Xan

Xan wrote:

Thanks!! I have a conventional machine shop in my garage and am working on a small home-brew CNC router for bot parts, but it is not that far along yet :wink: A friend on mine loaned me his CAD and showed me enough about it to draw profile parts for cutting on CNC. One of his co-workers runs a really BIG cnc laser cutter. He is fascinated by what we are always making, so he cut out my parts from a lot of drop material as part of his daily duties. it took about two weeks to get it all done “on the side.” 8) A case of Budwieser longnecks mysteriously appeared in the bed of his truck that same week . . . . .

Awesome! I wish I had a little machine park like that! I would love to “orderâ€

yeah wow. oh and well done on posting pics.

I would love to own my own cnc machine. got so many ideas but no machine to cut them :frowning:

have you ever thought of making cnc parts to sell? ebay??

i would buy!

It’s finally up and running!!

I’m going to try my hand at posting a video linked to You Tube. hopefully this will work so I don’t have to make several tries.

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If this works, you will see initial demos of all the main movements & translations. This bot is a bit heavy, as it has a 7.2 volt “c” battery pack. It also has a lot of tibia drive train “sloppiness” on the left side, and the cables need a more professional looking run. It’s a work in progress. I’ll be back with some code questions later. Many thanks to Zenta, Xan, & Lynxmotion! :smiley:

Links not worked
always try a preview first.

found it…

Phoenix-like hexapod robot, kinematic translation, homebuilt
youtube.com/watch?v=cNvTGBXnNss

Phoenix-like hexapod robot, kinematic, homebuilt 2
youtube.com/watch?v=g9bHprxs … re=channel

Oops, that didn’t work. This should work better. More video as this project improves and evloves. 8)

youtube.com/watch?v=g9bHprxsDlE

youtube.com/watch?v=cNvTGBXnNss

It’s good to finally crawling on all six . . .

:wink:

Here are some newer pics taken last night, they show a facelift and some more proper cable techniques for servos. Happy Thanksgiving!! img143.imageshack.us/img143/8541/recable74137734gq6.jpg
img212.imageshack.us/img212/65/recable31119243nw4.jpg
img296.imageshack.us/img296/8464/recable21071264rx4.jpg
img234.imageshack.us/img234/6091/recable40840532ax9.jpg
Also here is a clip made while playing with the Xan 1.3 code:
youtube.com/watch?v=bZlYEOOEHSM

More to come, so many robots, so little time . . . .
Keep the those hexapods crawling! :laughing:

Very nice and neat!
really finishes off the look. 8)

Were can i find some of the cable tidy netting you have used?

looks good!

Thanks! I got my anti abrasion weave ( I think that’s what it is called) from a friend’s job. His company throws away a lot of extra and he collects it. The best places to look would be on eBay, or online electronics supply. One could also use heat shrink.

Hi!

Very nice project! The cables are incredible! Great job!

I have a question: :slight_smile:
I use MG-995 too. Where do you bougth these servo horns?

Thank you!

DigiKey and Mouser are sources, although free scraps are certainly better if you can manage it. :wink: Use “EXPAND BRAID SLEEVING” as a search in Digikey and it will get a list of the Alpha expandable braided sleeving products they carry.

Newark/Farnell also seem to have some but it seemed harder to find and when I did find some they didin’t seem to have as many sizes as Mouser or DK.