Additional Servo in RN arms
Additional Servo in RN arms
by hivemind
Sat Aug 26, 2006 4:11 pm
Hello all,
I have removed my two servos in the legs for rotation because i wanted to expirement with new dof in the arms (I only have so many servos). So I fabricated a new bracket (1 for each arm) which I made out the same .04 in. extra-strength aircraft aluminum. I bought a 12 in. by 24 in. sheet for $8 from Enco and I have found that it is both stronger and lighter than the original aluminum used on the RN-1.
My new DOF allow rotation of the arms at the elbow and obviously make the arm another servo longer. You'll have to excuse the odd ape-like look of Thor at the moment as his shorter legs are now not in proportion with his arms. Once the new servos come in he will be proportional
As you can see, I still have not had time to make another new hand, so i will continue to show off Matts gripper
And to show my prototype I will post a video of the arms in action:
New 5-DOF arms
Feedback is certainly welcome, thanks!
I have removed my two servos in the legs for rotation because i wanted to expirement with new dof in the arms (I only have so many servos). So I fabricated a new bracket (1 for each arm) which I made out the same .04 in. extra-strength aircraft aluminum. I bought a 12 in. by 24 in. sheet for $8 from Enco and I have found that it is both stronger and lighter than the original aluminum used on the RN-1.
My new DOF allow rotation of the arms at the elbow and obviously make the arm another servo longer. You'll have to excuse the odd ape-like look of Thor at the moment as his shorter legs are now not in proportion with his arms. Once the new servos come in he will be proportional
As you can see, I still have not had time to make another new hand, so i will continue to show off Matts gripper
And to show my prototype I will post a video of the arms in action:
New 5-DOF arms
Feedback is certainly welcome, thanks!
Re: Additional Servo in RN arms
by CaptKill4Fun
Sat Aug 26, 2006 6:14 pm
hivemind wrote:Hello all,
I have removed my two servos in the legs for rotation because i wanted to expirement with new dof in the arms (I only have so many servos). So I fabricated a new bracket (1 for each arm) which I made out the same .04 in. extra-strength aircraft aluminum. I bought a 12 in. by 24 in. sheet for $8 from Enco and I have found that it is both stronger and lighter than the original aluminum used on the RN-1.
My new DOF allow rotation of the arms at the elbow and obviously make the arm another servo longer. You'll have to excuse the odd ape-like look of Thor at the moment as his shorter legs are now not in proportion with his arms. Once the new servos come in he will be proportional
front
side
As you can see, I still have not had time to make another new hand, so i will continue to show off Matts gripper
And to show my prototype I will post a video of the arms in action:
Feedback is certainly welcome, thanks!
Hi, So, now my ideas are right? Because hivemind is using them on his bot? or because he made them out of .04 aluminum rather than stiff paper?
Which is it? Because it's not his original idea ... that elbow (or as I put it as a wrist) design is in the some of the images I posted online, my avatar and videos (Large video & Small Video) I made of my bot with my stiff paper NovaGrabbers! I explained how I could pronate and supinate the NovaGrabber to rotate like a human hand. But the feedback I got is ridicule from hivemind, Bullit and beermat ... ???
Somebody building my designs (even hivemind) with metal doesn't bother me ... it shows that I was doing my job right, that my ideas are right.
All I'm trying to do is find more people who want my ideas on their robots so they and I can have them laser cut in a real machine shop and not have hacked-up sharp metal edges hanging off our robots.
But trying to steal the designs is simply stealing ...
Last edited by CaptKill4Fun on Sat Aug 26, 2006 7:32 pm, edited 1 time in total.
by hivemind
Sat Aug 26, 2006 6:54 pm
The wrist sits directly on the hand, this is unlike both of our arms. Your wrist (so it appears by the small video) sits above the hand, 25mm sticking out. My design is an elbow, not a wrist, and sits a servo up extending the arm by about 42mm or so.
My design is a prototype, yes, made out of .04 in. aluminum, correct again. This is stronger than stock aluminum, and thus according to the dictionary definition of a prototype, it will perform as the final product is expected.
Nobody is stealing your mods. I also do not claim to have an original elbow. Given the simple nature of the design it is the most plausable idea that came to me, meaning that it wont interfere with other motions, just adding some weight and length. It works well. If you are referring to a previous reference to your own design, I also posted mine in that thread as well. It can be found here.
Thank you Pev for your comment. I think the best plan is to keep it simple stupid
My design is a prototype, yes, made out of .04 in. aluminum, correct again. This is stronger than stock aluminum, and thus according to the dictionary definition of a prototype, it will perform as the final product is expected.
Nobody is stealing your mods. I also do not claim to have an original elbow. Given the simple nature of the design it is the most plausable idea that came to me, meaning that it wont interfere with other motions, just adding some weight and length. It works well. If you are referring to a previous reference to your own design, I also posted mine in that thread as well. It can be found here.
Thank you Pev for your comment. I think the best plan is to keep it simple stupid
Last edited by hivemind on Tue Aug 29, 2006 12:10 am, edited 1 time in total.
by CaptKill4Fun
Sat Aug 26, 2006 7:39 pm
hivemind wrote:The wrist sits directly on the hand, this is unlike both of our arms. Your wrist (so it appears by the small video) sits above the hand, 25mm sticking out. My design is an elbow, not a wrist, and sits a servo up extending the arm by about 42mm or so.
My design is a prototype, yes, made out of .04 in. aluminum, correct again. This is stronger than stock aluminum, and thus according to the dictionary definition of a prototype, it will perform as the final product is expected.
Nobody is stealing your mods. I also do not claim to have an original elbow. Given the simple nature of the design it is the most plausable idea that came to me, meaning that it wont interfere with other motions, just adding some weight and length. It works well. If you are referring to a previous reference to your own design, I also posted mine in that thread as well. It can be found [url=://robosavvy.com/modules.php?name=Forums&file=viewtopic&t=442&start=0]here[/url].
Thank you Pev for your comment. I think the best plan is to keep it simple stupid
Hi, So now you see it's there in my video ... and yes it is sticking up because it is not being used during that video and it is tied directly to the bracket that is the forearm of the NovaGrabbers not anywhere else as you seem to be trying to convince people I'm different ... and the connecting bracket from the upper arm is the same as mine too ... just like you see in my avatar ... or posted on my web site ...
A big difference is my designs are fewer metal parts (cheaper) and they all do the functions 100% ...
And another big difference is I have LiPo feet, arms, SwivelHips and hands I'm trying to find support for to make the cost of manufacturing even more affordable ... I've already done all the work ... and like I said before; copying it for your own robot is fine, just don't try and pass it off as your own designs when mine have been posted for several months already ... and they all integrate into the original RoboNova-1 keeping with HiTecRCDs original look and almost the exact same size ...
However, I haven't displayed my best hand design because it provides the ability of the hand to use multiple snap-on tools ... Yes, now the robots (not just RoboNova-1's) can quickly and easily connect to different tools for performing different tasks by simply snapping the tool onto the unique hand design ... and my final hands have articulating knuckles which gives the hand itself much more function ...
BTW, maybe your dictionary say's one thing about prototype but even NASA didn't build a prototype space shuttle that flew and did all the functions of the flying shuttles first ... the first full size prototype was made from plywood and putty and was stuck on a peg in the wind tunnel at NASA AMES in Sunnyvale, California so they could test the wing and body designs to see if the full size body worked as well as the miniature models did in the hypersonic wind tunnel.
If NASA can call that plywood 'n putty space shuttle a prototype I can call my stiff paper brackes prototypes.
by beermat
Sat Aug 26, 2006 9:57 pm
Oh God, it's nothing like your pathetic piece of cardboard nonsense, Capn. Now I know why your sites URL is 'brainless.org'.
It says 'Pat. Pend' on your video, huh? What's the patent number? When did you file it? What country? I'd like to see that patent - give me the number, I can look it up online.
The best news is, though, that you're trying to make your designs 'work' with other robots. One presumes that means you're going to have to move onto other robot forums instead of this one?
It says 'Pat. Pend' on your video, huh? What's the patent number? When did you file it? What country? I'd like to see that patent - give me the number, I can look it up online.
The best news is, though, that you're trying to make your designs 'work' with other robots. One presumes that means you're going to have to move onto other robot forums instead of this one?
by fatman
Sat Aug 26, 2006 10:26 pm
the hands look pretty cool hivemind...
my KHR-2HV should arrive here early next week....
will be trying to make hands/grippers as well
i also want leg rotation
so have some work ahead im sure.
my 2cents worth
ummm cptnkiill4fun....dude relax...make sure you take your meds - and if none prescribed self-medicate
fatman
ps. when i do get parts designed, would you help?
need a friend with cnc machine
my KHR-2HV should arrive here early next week....
will be trying to make hands/grippers as well
i also want leg rotation
so have some work ahead im sure.
my 2cents worth
ummm cptnkiill4fun....dude relax...make sure you take your meds - and if none prescribed self-medicate
fatman
ps. when i do get parts designed, would you help?
need a friend with cnc machine
by hivemind
Sat Aug 26, 2006 10:47 pm
I'm glad most people like my new DOF
It's unfortunate that you seem so uptight about the design Capt. Ithonestly shouldnt be such a big deal. I still guess I do not understand where you are coming from. I have reviewed your video again, and I will post some images of what I saw.
I see here that you do have an additional servo, but as stated in the image, all four arm servos are on the same axis. Lets call that the X axis. The shoulder is the Y axis and I added another for the Z. I am puzzled, your video may just be too dark, but I just do not see an resemblance.
As for stealing your bracket design. I am afraid not. Here is yours:
And here is a sketch of mine:
As you can see I have four holes in mine which corespond to where the servo idler would be. Your design leaves room for the horn itself.
As for your "Swivel Hips" I found those on your website here And it states that the bracket kit you made would sure, only raise it by 5mm but it would put 47mm on each side! Also it pushes them forward by 20mm. That just seems absurd.
Your frakenfoot/Big foot design also seems a little illogical. When i want to put batteries on my robot I want a lot of power (I want to use it for a long time, so more than 700 mah, I want 2200 or so). And most of the LiPo batteries I look at that are the newest generation are at least 14mm in height (the smallest dimension). That is for a 2200 mah battery. Granted one doesnt need two of those, but even one cell in each foot still raises the bot up considerably.
I am open to good ideas. But I prefer you not accuse me of stealing yours when your design is A) not even close, B) not as you explain it (doesnt have rotation in arm) and C) made out of 'stiff' paper.
As for NASAs plywood spaceship, it is still wood, I have also seen robots made out of wood. There is nothing wrong with wood. But it isnt paper. That is fluid dynamics in a wind tunnel, not robots with hands.
To be honest, I love robotics. I love designing, both graphically and mechanically. But please do not verge off the topic of this thread. You are welcome to create your own, but there is no reason to get so upset. Just relax man, its the internet.
fatman, congrats on your KHR-2HV goodluck with hands and grippers, if you need any help getting started let me know!
cheers
It's unfortunate that you seem so uptight about the design Capt. Ithonestly shouldnt be such a big deal. I still guess I do not understand where you are coming from. I have reviewed your video again, and I will post some images of what I saw.
I see here that you do have an additional servo, but as stated in the image, all four arm servos are on the same axis. Lets call that the X axis. The shoulder is the Y axis and I added another for the Z. I am puzzled, your video may just be too dark, but I just do not see an resemblance.
As for stealing your bracket design. I am afraid not. Here is yours:
And here is a sketch of mine:
As you can see I have four holes in mine which corespond to where the servo idler would be. Your design leaves room for the horn itself.
As for your "Swivel Hips" I found those on your website here And it states that the bracket kit you made would sure, only raise it by 5mm but it would put 47mm on each side! Also it pushes them forward by 20mm. That just seems absurd.
Your frakenfoot/Big foot design also seems a little illogical. When i want to put batteries on my robot I want a lot of power (I want to use it for a long time, so more than 700 mah, I want 2200 or so). And most of the LiPo batteries I look at that are the newest generation are at least 14mm in height (the smallest dimension). That is for a 2200 mah battery. Granted one doesnt need two of those, but even one cell in each foot still raises the bot up considerably.
I am open to good ideas. But I prefer you not accuse me of stealing yours when your design is A) not even close, B) not as you explain it (doesnt have rotation in arm) and C) made out of 'stiff' paper.
As for NASAs plywood spaceship, it is still wood, I have also seen robots made out of wood. There is nothing wrong with wood. But it isnt paper. That is fluid dynamics in a wind tunnel, not robots with hands.
To be honest, I love robotics. I love designing, both graphically and mechanically. But please do not verge off the topic of this thread. You are welcome to create your own, but there is no reason to get so upset. Just relax man, its the internet.
fatman, congrats on your KHR-2HV
goodluck with hands and grippers, if you need any help getting started let me know!
cheers
Lay off the Capt.
by Ghostrider
Sun Aug 27, 2006 12:01 am
Come on guys. Give it a break.
The Capt obviously has some major problems. The names he picks, like OPEC and "CaptKill4Fun", are a huge "Kick Me" sign that he wears proudly. 8O
He wants you to keep baiting him. It's how he gets significance in his life. It makes him feel important. "My designs are worth stealing", and "I'm important enough that people are constantly trying to rip me off."
This is like one of those Star Trek episodes where the more they shot at the alien energy beast the stronger it got.
The Capt obviously has some major problems. The names he picks, like OPEC and "CaptKill4Fun", are a huge "Kick Me" sign that he wears proudly. 8O
He wants you to keep baiting him. It's how he gets significance in his life. It makes him feel important. "My designs are worth stealing", and "I'm important enough that people are constantly trying to rip me off."
This is like one of those Star Trek episodes where the more they shot at the alien energy beast the stronger it got.
Blaze is my name,
Robots are my game.
Robots are my game.
by Dimitris
Sun Aug 27, 2006 1:41 am
Ahem... Captain, can't you see that the whole issue is not about the cardboard???
It's about your general negative and know-it-all insulting attitude in the forum. Every single post you make has some kind of pety insult or some wining about something. Maybe you don't see it when as you write it, but your general stance on issues is generally negative. People in a forum like this are generally just trying to be helpful and no one likes being openly attacked for no reason. How can you be the one who's right when the majority of the forum has made up a bad image about yourself?
As for the recent insults against you, they were just inevitable as you kept busting everyone's @@'s in the past. People didnt' wake up one day and say: 'today I think I'm not going to be friendly towards Capt', you gave them reasons to dislike you.
And the designs were not 'stolen' from you, in fact they look very different. Lots of people have thought of the idea of adding extra degrees of freedom in the past, whether to the arms, legs or whatever. If you told 10 people to add an extra dof to an arm, they would probably come up with 10 different but fairly similar solutions, it doesn't mean they copied YOU.
The best thing you can do right now is drop the subject, stop deleting all your older posts (...), and generally be friendlier to people. Peace!
It's about your general negative and know-it-all insulting attitude in the forum. Every single post you make has some kind of pety insult or some wining about something. Maybe you don't see it when as you write it, but your general stance on issues is generally negative. People in a forum like this are generally just trying to be helpful and no one likes being openly attacked for no reason. How can you be the one who's right when the majority of the forum has made up a bad image about yourself?
As for the recent insults against you, they were just inevitable as you kept busting everyone's @@'s in the past. People didnt' wake up one day and say: 'today I think I'm not going to be friendly towards Capt', you gave them reasons to dislike you.
And the designs were not 'stolen' from you, in fact they look very different. Lots of people have thought of the idea of adding extra degrees of freedom in the past, whether to the arms, legs or whatever. If you told 10 people to add an extra dof to an arm, they would probably come up with 10 different but fairly similar solutions, it doesn't mean they copied YOU.
The best thing you can do right now is drop the subject, stop deleting all your older posts (...), and generally be friendlier to people. Peace!
by Dimitris
Sun Aug 27, 2006 1:54 am
...one more thing... Why are you so hellbent on turning your ideas into a mass-production profit-making venture? Your 3D designs in your signature look pretty good and if you remember the initial response to your designs was positive (http://robosavvy.com/modules.php?name=F ... opic&t=442), but from then onwards your attitude just put people off. Moving from a cool 3D design to reality and gaining people's acceptance is possible, but doesn't happen over night.
Just take a chill pill, forget all this happened, turn over a new leaf and try to get on with people.
Just take a chill pill, forget all this happened, turn over a new leaf and try to get on with people.
by CaptKill4Fun
Sun Aug 27, 2006 3:37 am
hivemind wrote:I'm glad most people like my new DOF
It's unfortunate that you seem so uptight about the design Capt. Ithonestly shouldnt be such a big deal. I still guess I do not understand where you are coming from. I have reviewed your video again, and I will post some images of what I saw.
I see here that you do have an additional servo, but as stated in the image, all four arm servos are on the same axis. Lets call that the X axis. The shoulder is the Y axis and I added another for the Z. I am puzzled, your video may just be too dark, but I just do not see an resemblance.
As for stealing your bracket design. I am afraid not. Here is yours:
And here is a sketch of mine:
As you can see I have four holes in mine which corespond to where the servo idler would be. Your design leaves room for the horn itself.
As for your "Swivel Hips" I found those on your website here And it states that the bracket kit you made would sure, only raise it by 5mm but it would put 47mm on each side! Also it pushes them forward by 20mm. That just seems absurd.
Your frakenfoot/Big foot design also seems a little illogical. When i want to put batteries on my robot I want a lot of power (I want to use it for a long time, so more than 700 mah, I want 2200 or so). And most of the LiPo batteries I look at that are the newest generation are at least 14mm in height (the smallest dimension). That is for a 2200 mah battery. Granted one doesnt need two of those, but even one cell in each foot still raises the bot up considerably.
I am open to good ideas. But I prefer you not accuse me of stealing yours when your design is A) not even close, B) not as you explain it (doesnt have rotation in arm) and C) made out of 'stiff' paper.
As for NASAs plywood spaceship, it is still wood, I have also seen robots made out of wood. There is nothing wrong with wood. But it isnt paper. That is fluid dynamics in a wind tunnel, not robots with hands.
To be honest, I love robotics. I love designing, both graphically and mechanically. But please do not verge off the topic of this thread. You are welcome to create your own, but there is no reason to get so upset. Just relax man, its the internet.
fatman, congrats on your KHR-2HV
cheers
Hi, So, you tried to show off the wrong bracket ... made notes on a few stills of my video whcih clearly shows the servo horn connector bent outward rather than in its intended position.
Here's the correct bracket for the arm ... you posted a different bracket designed for a different job ... but notice I also include a bore for the servo body's 12mm base to allow the servo to fit snugly against the bracket ... not sticking out as your pencil drawing depicts ... and I have correct RoboNova-1 bracket shape and it's positioned properly so to fit the end of the servo whereas your drawing shows four small bores symmetrical to the bracket ... which puts the center of rotation further away from the centerline of the arm ...
Then you say a Thunder Power TP2000-2S1P or TP2100-2S1P isn't enough power even though that's what the LipoFoot and BigFoot feet designs are made for? The TP4000-2S1P isn't enough power for the FrankenFoot?
Then you mock one of the SwivelHip designs ... that's just one idea and NOT the final solution ... if you understood the description you'd be able to clearly see that in the images online ... the final design hasn't been offically published publically yet ...
Hence why you haven't copied that design ... yet!
by bauermech
Sun Aug 27, 2006 4:07 am
My goodness...
We must have ripped of eachother because...
Actually I seem to remember Tony Ohm's (of Hitec) 'RN-1E' had a similar design to ours at RoboGames in June... what does it all mean? Probably that we each can make a bracket.
Come on, show of hands... who's having fun w/ their robot? Remember fun?
We must have ripped of eachother because...
Actually I seem to remember Tony Ohm's (of Hitec) 'RN-1E' had a similar design to ours at RoboGames in June... what does it all mean? Probably that we each can make a bracket.
Come on, show of hands... who's having fun w/ their robot? Remember fun?
