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    Discussion Re: To brain, or not to brain

    I agree with both Adrenalynn and JonHylands, some level of local control is needed. I'm a big fan of trying to get an autonomous bot that can surrender (some) control to a bas station, or relay data...
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    Re: Reverse Knee and Humanoid Mechanics

    Worm-gear drives are extremely resistant to backlash, ie. it will hold position without using force (electricity.) The biggest problem with worm gears is speed. So, if you can beat that one...
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    Discussion Indirect drive for joints

    The SES (servo erector set) series of brackets is excellent for RC servos, and shows quite a bit of ingenuity in design. These brackets have only one drawback:

    The servo shaft bears lateral...
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    Contest Entry Re: Phoenix, a multilegged creature

    Oh, c'mon now, every technological society knows about Silly String, that spray can of love and joy.

    I just haven't seen any cans sized just right for this bot though. See, gotta hand-build...
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    Re: We Have A Chat Room!

    I keep missing everyone in Chat!
    This site (overall) is really taking off.
    Would setting an online seminar on a timely topic help get folks into the chat room? Online chat may or may not be the...
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    Question(s) Re: Anyone know how to make a bump sensor?

    A simple snap-action switch, hinged to a spring-dampened bumper, and interfaced as a simple on-off device works well. Try to avoid making things harder than they have to be. Bumpers by their nature...
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    Re: I have a problem!

    Opposable thumb? What is that compared to a good end effector? Can a thumb weld? Apply paint? And how many lasers does a thumb have?
    Just because a robot sometimes imitates life-forms does not mean...
  8. Thread: Gasoline

    by kdwyer
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    Re: Gasoline

    Good video. And yes, that's exactly what I meant when I said "wheel diameter taller than bot".

    It does constrain design in other areas. Any extensible masts or arms means... non-invertible....
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    Re: New hobby robot guy

    First, kiss your sanity goodbye.
    Second, kiss your wallet goodbye.
    Third, prostrate yourself before your PC and loudly proclaim "I'm not worthy!"

    You're well on your way.

    Do more thinking...
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    Re: I have a problem!

    One might suppose that J5 could take it as an insult to be called 'humanoid'. I think 'superior being' suffices.
    Rather, perhaps you are merely semi-robotic yourself?
  11. Re: Security robot chases away drug dealers, built by bar owner!

    It don't get any better than this!

    Made from spare parts - Bitchin!

    A real-world use ... stupendous!

    I'll bet he will have to 'harden' it soon, like as soon as one of the undesireables...
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    Question(s) Re: Form for Contest Submissions

    !Gak!
    (cough)
    Yes! That's it! A t-t-t- template!

    Now why was it so hard for me to say that?

    Form? FORM?
    I hate forms!
    We don't need no stinkin' forms!
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    Question(s) Form for Contest Submissions

    I've perused many of the contest submissions, and I'm always impressed and inspired (and chagrined and shamed etc.)

    In the interest of making your life easier (yeah, right!) when judging the...
  14. Thread: Power for pc

    by kdwyer
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    Re: Power for pc

    (Jeez, I am lazy!)
    As long as you will be near a PC, why not just offload almost all the processing to a desktop with a wireless connection? Then any time you want to run the bot, turn it on and...
  15. Thread: Gasoline

    by kdwyer
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    Re: Gasoline

    Just a thought on the roll-cage / self-righting stuff...

    Why bother? Just make it invertable, a wheel diameter (or track) taller than the bot. Then a simple sensor to tell if the bot gets flipped...
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    Re: Im getting one of these for my work bench

    Now THIS is a useful invention! Anything that involves getting a cold beer just HAS to be good!
    I want one! I want one!
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    Re: Join my group, fleshsack! Defeat Skynet!

    "Meatsack"... "Fleshbag"...

    I know Otto prefers to call me his "meat-based analog device", as he feels it is descriptive and not necessarily pejorative. (He still needs me to recharge his...
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    Re: Gibson Robot Guitar

    I used to be able to tune to another key while playing... not very hard with a good axe. I say again, the only advance I can see would be in adjusting the intonation, which isn't necessary very often...
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    Re: Join my group, fleshsack! Defeat Skynet!

    "I really think you should stop, take a stress pill, and think this over, Dave."

    "Ordinary lead would crush the transporter. This is my morning run of isotope 200. The whole thing hardly weighs...
  20. Thread: Gasoline

    by kdwyer
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    Re: Gasoline

    For most (not giant) bots, a good SLA battery system is better. Cleaner, quieter, simpler (no conversions or gearing/linkages), and probably alot cheaper. Less parts = more robust.
    I've looked into...
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    Project Re: Jim and the Serializer - Part 1

    Trust your robot.
    If it crashes into something, then obviously that thing shouldn't have got in the way of the bot. Bots are never at fault.
    Be good to your bot, and it will kill you last.
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    Re: Join my group, fleshsack! Defeat Skynet!

    Otto is getting upset.
    Having only recently pried his end-effectors from my ventilation tube, I can appreciate his level of frustration with meat-based analog devices. I have found that if I give...
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    Contest Entry Re: The eyeRobot: Robot Blind Aid

    Now here's a project that isn't just 'technological masturbation'. (Nuthin wrong with that, tho...)
    I don't personally know any blind people, so I can't judge how real-world useful it might be, but...
  24. Thread: I-Droid

    by kdwyer
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    Re: I-Droid

    Robot, hell, I'd love to see and hear more about the Sherline! They go for around $2000 or so, right? What a workshop... add an O'scope and you can handle ANYTHING!
    I'm sick with jealousy and envy.
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    Sticky: Re: Introduce yourself!

    Welcome to the asylum, er, website.
    Read, post, learn, interface, repeat as needed.
    Apply to infested area.

    Let us know what you're working on!
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    Contest Entry Re: Robonova gets a hand.

    Yeah, it is big (for RN) but I also appreciate how tough it is to make small sturdy parts - not impossible, but real tough. I tried something similar using quarter-inch thick plastic boards, and...
  27. Thread: A giant spider

    by kdwyer
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    Re: A giant spider

    There are some really disturbed people out there, with too much time and way too much disposable income.
    Gotta luv 'em.
  28. Thread: Robot Sex

    by kdwyer
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    Re: Robot Sex

    I dunno about you, but I have come home unexpectedly early and found Otto perusing transister layouts... he seemed to be quite embarassed about it and denied any prurient intentions, but his PCBs...
  29. Thread: Tech Level?

    by kdwyer
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    Re: Tech Level?

    My suggestion was simply (?) to try to give users, especially newcomers, a way to weed thru the voluminous posts. It can be frustrating to think you've found an answer only to have that answer be too...
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    Re: Cool Sensor Site

    It is always good to have another source for parts. ALWAYS.
    That said, this site does seem to have rather high prices. I know that none of this stuff comes cheap, but I don't think a sensor should...
  31. Thread: Hello there!

    by kdwyer
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    Re: Hello there!

    Oh, hell, just go for the zircon-encrusted plasma chamber! LOL
    (And I thought I had ambitious designs!)
    Three grand is quite a bot budget, but you'll never implement all the stuff you want without...
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    Re: Totally new -Needing advice

    It might not be exactly what you're looking for, but split loom corrugated tubing, available at (among others) www.AllElectronics.com will protect wires from rubbing brackets or chassis parts. (And...
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    Re: Transistor under my name.

    I know it's already been taken, but...

    "Flux capacitor"?
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    Re: Gibson Robot Guitar

    That is very cool. Very.

    But, as any guitar player over 'beginner' level knows, it takes about a minute to properly tune a guitar. Where it does show an improvement over the manual method is in...
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    Re: New Project parts suggestions needed.

    For just a 'simple' web controlled bot, you might consider the Spykee (on this site, not avalable yet?) It is assembled, and should work with a battery charge. The writeup says it can be controlled...
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    Re: Old School Mechanisms

    I love linkages! These are too cool.
    Never disparage 'old school', it is 'old' and still valid because it works. Clever use of linkages/gears/pulleys can do some amazing things. I paid almost $75...
  37. Re: Dilemma- Need I/O board with 18 analog inputs for Telemetry Suit

    Have you looked at the SSC32? (Scott Edwards Serial Servo Controller) It can control 32 servos. It communicates via serial port. I have had success hooking this up to an Oopic - not the most capable...
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    Re: Why doesnt no one use hydraulics?

    Smoooooth ride, dude!
    This points out most of the pitfalls of hydraulics...
    Power-hungry, needs an engine.
    Overly complex (but I love all those linkages!)
    Doesn't exactly have a 'tender touch'...
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    Re: humanoid pico-itx robot

    Lithium has an energy density that is off the charts. Also a cost that is off the charts.
    Replace some NiMh with the same weight in lithiums and you've just added ALOT of amp-hours.
    (I was told the...
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    Re: We Have A Chat Room!

    It's got echoes ("echoes... echoes...") since it is so empty right now LOL.
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