thanks Bob - I've got a 2020 Unity CV & would like to replace. I am leaning toward just covering over them. They are thin enough that I think it could happen. Any thoughts from you on this alternate idea, in hindsight?

mechanical legs look cool, but what if u get your finger stuck in them?

Roberts Robot. :) computing with right triangles is the easiest meth!

How long did they last after install

Good Work!

wow, this robot still have a lot of job to finished and it will take long time. add oil and keep go on. thanks for your sharing.

Thanks Bob! I look forward to seeing more videos on this project.

Hi @Bob! I thought this is something you might be interested. I made this hexapod robot inverse kinematics visualizer for the web, You can feed it the x, y, z translations rotations in the x y and z axes and it outputs the angles required to achieve this pose. It also has a wire model of the hexapod in a 3d plot, so you can see how it looks like. I hope you can take a few seconds to look at it and I hope you like it. - kzbin.info/www/bejne/fKnNl4eLn5d3oZI - hexapod.netlify.app/ - github.com/mithi/hexapod

Very much a treat to see your update! Looking forward to the next one. Beautiful work! You have been working on your hexapod robot about as long as I have been working on my omnidirectional standing wheelchair. The difference being that you know what you are doing and I don’t ...

very great job that you make it. thanks for sharing.

👏👏👏👏👏

I added a block and tackle to the ceiling joists to help prevent future tip overs! This event also caused me to re-do some coding and add software checks for various conditions before the legs actually start moving. Plus, I’m doing a better job of testing movements on the test stand than I did before, I was too eager to see the robot moving on its own and removed the test stand too early. But out of all mistakes I learned a lot that will result in a better result later. Thanks to everyone for watching, hopefully there wont be any other ‘failure’ videos!

Bob, Thank you for sharing your project. I have been watching you from the beginning. I became familiar with Parallax because I lived in Rocklin and was just a few miles away from them. My skills are at a very rookie level, although I have tackled building an omni-directional standing wheel chair, sporting Omni wheels. It is a long story, but at the moment I am nearly ready to get back to trying to get the chair to a point where I can attract some interest in it. It runs on PWM at the moment, and drives like it is drunk. The next step is to add encoders. Again, my programming skill is ... learning. Anyway, your project is inspiring and I'm glad you have stuck to it! Looking forward to the day when it walks up and down a shopping mall like it owns the place. Dale

Normally I don’t show my mistakes but this was an interesting failure! Luckily there was minimal damage. One motor failed and the main battery disconnect melted!

That would have been scary as hell for you mate! Projects of that complexity never work properly when you run that first test! At least you have it standing on it's own legs now, that is a big achievement in itself!

Excellent! That is a massive task you have set yourself. I am so glad you have been continuing with it!

Thanks for the video but I want the acid name to buy it in Egypt in Cairo please ant colors I can used it to paint clothes

Wow, Bob and Maggi! What a fantastic experience!

kzbin.info/door/LB7q57p7G_VTDJGlPPkWog

hi, your robot is very similar as mine. you can use CAN bus or PWM for prototype test

Very well done! Nice job on the modular hardware approach. Should be very straight forward to service. Looking forward to seeing it walk!

Where can one get that power source?

As far as I know only dilute sulfuric acid will work.

Ok in Canada we have a small problem buying battery acid is illegal seems some a hole made something with it, we won't even say what I am thinking, ok can I use hydrochloric acid or even easier to get at a paint store, muriatic acid....

for anodizing wheels, if i dont have a big enough tank, could i anodize only the face of a wheel, or does the whole part have to be submerged?

Looks like the vis was fantastic!! Did you dive the wreck in September? Looking to possibly dive it memorial weekend or the weekend after this year.

Hi Bob, nice setup. Thanks for sharing.

You sound just like Rand Paul

Hi man, I don't understand what's purpose do you use PID for hexapod? Can you give me more detail?

when hes not anodizing this would also serve well as a meth lab! joking, great video

Removing the anodize layer requires a strong caustic solution, I used a solution of lye and a scrub brush. Soak the part in the lye for a short time and then use the brush lightly to remove the oxide layer. Wear gloves while you do this and watch for splashing (a plastic chemical apron, safety glasses and face shield are recommended). You can see the layer as it comes off and back down to bare aluminum fairly easily

do u know how to seal de-anodized allu parts ? or what do i need to use to cook it in >?

👍

There is a balancing act when the current is applied where when the appropriate current is applied about 0.001" of oxide is formed in about 1 hour. Additional time doesn't make the oxide layer thicker but as I understand it from other sources, the acid wears away the layer as fast as it grows. The oxide itself is hard coming out of the process. The process for putting it in Nickel Acetate or boiling causes the open honeycomb cells in the oxide to close up, trapping the dye molecules in place. This information is available from a number of sources, if it is incorrect please point me to your sources.

Hi Bob , The aluminium doesn't dissolve in the acid the acid reacts with the surface of the aluminium changing it from basic aluminium to an aluminium molecule, aluminium oxide. It is this oxide that when first formed is soft and absorptive, once coloured with dye the oxide is hardened with either boiling water or steam. Regards MoK

I rarely go back to my videos, was surprised at the number of entries. To answer some questions: you have to use Sulfuric Acid, no substituents. I got the acid from a auto zone store. The plastic bin came from Walmart, just looked around and found something that was the right size for my application. The electric heaters were ordered on-line along with the stainless pots, don't remember where but there are a lot of places that sell them. Just look for a size that will allow you to completely immerse your project. The dyes were purchased from Caldwell, just google anodizing and it shows up pretty quick, lots of hints and ideas on the web site. I keep the setup in place in the basement, just cover up the pots and there is little evaporation. I have several 5 gallon pails with lids if I want to store the liquids away from the workbenches.

Your tooooo hot !

Can hcl substitute sulfuric acid?

I too am looking to find kind of a equipment list, the burners etc. If you could put something like that out Im sure that it would be greatly appreciated... thanks Bob L

do you have a write-up with the components you used? I'm looking for information on the containers/electric burners, chemicals, buckets,and power supply.

Great video!!!! Thanks for sharing your set up . Think I will he doing mine very similar to this

That is a beautiful machine you've made there. I saw your work in the Parallax site and will be looking forward to checking out the rest of your videos. Thanks for posting your work.

Very informative Thanks

I have heard there are catfish by the dam on bond st that are so big that divers were scared to go down there.