41

AI News / Re: LLaMA2 Meta's chatbot released

« Last post by spydaz on August 24, 2024, 02:58:36 pm »

I am reluctant to try it as I don't know what is in it.

LOL!
these models are actually the key to the future of AI !
currently i made over 350 model : lately i delete most and have 100 models left!
the training and moulding of the model is actually quite fun !
the systems that i have been creating have far supassed the past !
way in the future now !
I dont see any programming project as a challenge or new reverse engineering problem as any thing !
the quest for knowldge has not been easier !
ai is arriving !

42

AI News / Re: ollama and llama3

« Last post by spydaz on August 24, 2024, 02:55:13 pm »

Access to generative artificial intelligence just changed radically and for the better. Until recently our options were to use online services which were potentially very expensive and almost certainly heavily restricted, or to try to use open source models locally which required high end hardware to operate and which produced disappointing and mediocre results at best.

Last year we saw the release of ollama which made it incredibly easy to run just about any large language model locally no matter what platform you're on. You still needed a powerful system but at least you didn't have to learn a lot of obscure methods to use it.

https://ollama.com/

Last month the open source large language model llama3 was released. It has proven to be as capable as models two hundred times its size and is so efficient you can run it on a Raspberry Pi 5 if you want to, though it might take some patience.

I've been experimenting with it and it seems to be as good as any of the models that I have used online. I am running it on a Linux system with 24 cores, 64 GB of RAM, and 16 GB of video RAM. The smaller 8 billion parameter model responds to my queries almost instantly while the larger 70 billion parameter model can take a minute or two. Mostly the results produced by the smaller model are quite good enough.

Yes i think we need a area just for hugging face posts !
https://huggingface.co/LeroyDyer

43

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 23, 2024, 12:03:04 am »

so here i've done up the head a bit more to match the legs. (and the stuff is inside, fitting.) - sortof, you can see it poking out the sides and bottom, im just gonna go put some lime green caps on it and call it done, for now.




you can see the kinect mounted vertically in the middle of the front of the head.
The problem with that is i have the horizontal res as the vertical, so it means it sees more up and down than left and right,   I guess that'll make him have better feet detection for the pose detector, so maybe it might not be that bad.

So its just too many pipes for the double actuator system, its 12, and they all have to be in a line across the bending plastic to keep the volume the same throughout the angle change  and they are just too skinny,  they are only about 2mm pipes and the resistance is all the way to the actuator AND back... but I can get it to 6 if I make it single actuator, and the path is only down the leg once. so Ive reduced it to one and am going to implement suction for the reverse actuation.   Ive worked out how im going to get the suck energy, its a bit of a bitch of a build but  i should be able to do it.

So now I just have to organize everything nice and snug inside its head, I think I have enough space,  I gave it a fairly eggy head so I could fit it all in.


<edit>


here he is with the caps.  he looks like hes got decoy eyes! q:)

</e>

44

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 22, 2024, 02:52:05 pm »

I dont know if this is going to work,   I havent even built the test actuator yet. 

There is two actuators one for pushing left and one for pushing right, it goes 45 degrees each polarity for a total of 90 degrees.    so its only low flexability, I think I can get the robot to walk with only low angular freedom, if I'm flexing plastic to turn it I thought I'd better keep it down for this first one,  more chance it's going to work.

The animation I made doesn't express the full flexability of the system, it looks a little short stroked but thats cause I didnt do the animation properly,   it has more flexability than whats shown.   but it is just 90 degrees total for each leg,  I thought if I keep it down its got more chance in working.

So I dont know if its got enough power to just push its way back through the other "vein" back into the other actuator,  if it doesn't,  I might have make it pull as well as push but then the internal resoviour is alot harder to make push and pull, so I'm trying to get away with it.

45

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by WriterOfMinds on August 22, 2024, 05:58:22 am »

Your bellows actuators look to be grouped in pairs - is each pair associated with one joint or two? How many degrees of freedom does each leg have total?

46

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 21, 2024, 10:17:02 am »

Here he is,  with the kinect and jetson nanos and arduino placeholders there.



also in the body, is alot of rechargable batteries, one per actuator,   its one battery and hi-voltage generator PER actuator!  I need to make sure I have the amp requirement! (even tho its electrostatic i do have to hit the microamps or it doesnt work!  Actually I dont even know for certain but best be safe and sure.   and then theres a big circuit board full of high voltage switches I'm going to drench in timber oil to get a nice hi-voltage seal on. (if a spark plug gets oil on it, it actually cant make it through!)  and thats all I need,  but with only 22cm cubed to put it in, its going to be a tight fit to get it all in the little box.

47

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 21, 2024, 04:30:41 am »

so, heres the fixed one.       it wasnt quite what i was expecting, it seems fairly monstrous!!! (like a little too freaky for my liking)  but I dont know what to do about it,    The project is still a go, It's good enough better not complain.  having that full retractable leg makes it walk a little funny, but its not too bad,   ill have to see what the computer comes up with,  these walking animations arent used in the finished thing!

48

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 20, 2024, 11:26:54 pm »

Its not right yet, theres some improvements, but the new configuration works alot better,

the limbs are fully retractable, and it can walk in its retracted state, so it makes it through doors easy even tho it has a crab like posture.

It took me a while to get the leg ordering right in the movement,  its not a gallop exactly,  its like a gallop crossed with a walk,  so its not pearling around 1234,  its actually 1324, slightly different, to get the two front legs 180 out of phase, instead of 90.  and the other thing was to get the sides swapped between front and back, so its not landing the same side at the same time.   then it looked about right.

but my unit isnt going to be using IK to do its motions,  this is just an animation test in open s-cad.

49

Home Made Robots / Re: Hi IM BAA---AAACK!!

« Last post by MagnusWootton on August 20, 2024, 09:11:09 pm »

I did some walking tests,  and it needed a reconfigure,  I've already got it lookin' nice! and I dont want to ruin the look of it,  but the walking was pretty bad (but still showing a little potential)  So this is the reconfigure, and ill have a walking vid tomorrow.

I'm going to be getting my print done,  but maybe I need 2 weeks before I do it.  this is the first time ive built anything this professional!  Im really excited.

All this extra effort has gone into something important,  I need retractability of the legs so it can make it through tighter door-ways,  if it cant fit through the door it cant protect me inside, and thats usually where you invited the vampire in,  so it needs to be in-doors.

50

Home Made Robots / Re: Attempting Hydraulics

« Last post by MagnusWootton on August 19, 2024, 04:03:23 am »

Really impressive work, and u just helped me countless amounts!  thank you.

In my one I just go bag to bag,   I have a flat bag where the water is in area only, and it goes to a circular bellows kinda like one of those air blowing bellows with air out the centre, the bellows crushing rotational-wise between your hands like a door hinge.  So you put your foot on it, and it transfers to the arm,  I'm not sure what my pipe and actuator sizes need to be,   if the pipe is too small theres too much resistance and I'll need more force to push it down, and the bigger the cap is at the end the more torque I get I think, but the slower the actuation is.

It comes down to metres a second required for the flow rate,  but to get metres a second requires force.

So to actuate the flat bag, Im going to use capacitive actuation to shoot it out into the actuator.  And that gives me the possibility of maybe recharging the battery with it after I've used the energy to charge it,  because its a capacitor and the charge remains in the cap after uve fired it!    but u need an extra transistor for that, and u open the cap up to the battery after uve used it. (when u want to release)

I also use a double pipe system,  where I come out of the resoviour bags, to the actuator,  where it then fights against another actuator, which then carries its water back to the resoviour,  so I have a push only resoviour it doesnt pull, but it means I need to twice the pipes and actuators to do it,  to get the simplified resoviour,  which is just a pack of bags, one per actuator, with the copper tape taped onto em,  then I stack em like a book behind the arm.  (and it gets a little technical lookin' doing hydraulics.)

Thats what I'm doing - untested yet,  I seem to have not your magic ability to go from theory to practice in such speed.   it takes me ages to do anything for real out of the computer....