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mosen57
เข้าร่วมเมื่อ 2 พ.ย. 2009
Even a cat can open this door...
KPHOB | Did I lock The Door? There Is a Gadget For That!!!
www.kickstarter.com/projects/1634324894/133155390?token=ee4bfe8f
www.kickstarter.com/projects/1634324894/133155390?token=ee4bfe8f
มุมมอง: 55
วีดีโอ
KPHOB | The Key Fob, | Smart key fob for burglary prevention and more...
มุมมอง 4.3K8 ปีที่แล้ว
Did I lock The Door? KPHOB registers the time and date of each entry or exit. www.kickstarter.com/projects/1634324894/133155390?token=ee4bfe8f More info on www.kphob.com Music Credit: "Swingin' Jazz Blues" and "Let it be Christmas" by Nicolai Heidlas Music
KPHOB Intro
มุมมอง 368 ปีที่แล้ว
Did I lock The Door? KPHOB registers the time and date of each entry or exit. More info on www.kphob.com Music Credit: "Swingin' Jazz Blues" and "Let it be Christmas" by Nicolai Heidlas Music
Recumbent bike- rear wheel steering
มุมมอง 56K12 ปีที่แล้ว
Rear wheel steering/ front wheel drive recumbent bicycle. It Is not yet ridable and I have not had time to redesign and give it another try... if you know about dynamic modelling of vehicles, dont hesitate to contact me...www.mohsen-saleh.com
Building integrated concentrated solar facade-BIPV
มุมมอง 4.9K12 ปีที่แล้ว
Concentrated solar facade... more info: www.mohsen-saleh.com/2011/10/light-farm.html Lightfarm is a system that utilizes building facade and rooftop for collecting and concentrating light rays which then is used for heating and power generation by HCPV photovoltaic cells. This kind of PV has an efficiency of 40% and is suitable for concentrated light up to 500 to 1000 times the intensity of sun...
LIGHTFARM ( CPV facade light harvesting system)
มุมมอง 1.5K12 ปีที่แล้ว
Concentrated solar facade... more info: www.mohsen-saleh.com/2011/10/light-farm.html Lightfarm is a system that utilizes building facade and rooftop for collecting and concentrating light rays which then is used for heating and power generation by HCPV photovoltaic cells. This kind of PV has an efficiency of 40% and is suitable for concentrated light up to 500 to 1000 times the intensity of sun...
planet agent introduction
มุมมอง 23114 ปีที่แล้ว
It happens to many of us to pass by an unpleasant scene of destroying our planet, but not every one has the motivation, knowledge and resources to bring a civil action against this cases, but as a planet Agent we can report these kind of information by taking a photo or recording a video and uploading it to a website dedicated to environmental activists, to gather information from all over the ...
Semi-wireless mp3 player
มุมมอง 1.7K14 ปีที่แล้ว
designger.blogspot.com/ Lescord is a mp3 player which the player and its headphone has been integrated together in a compact way to facilitate using mp3 player by shortening headphone wire as much as possible. Lescord mp3 player would be placed on one ear; it has one headphone integrated with the player body and another retractable headphone for the opposite ear.
automatic meat slicer
มุมมอง 3.3K15 ปีที่แล้ว
hand function stimulated in a meat slicer, designed for Berkel in a university project
Revolver Dishwasher brake system
มุมมอง 78415 ปีที่แล้ว
this is the system which stops the movement of rack as soon as the user releases the handle...solidworks animation ( motion study )
and when its time to ride the video stops, LOL..
Naked velomobile.
Hoe hard would be making by own and adding eletrical assistance, perhaps adding fairing?
muito este sistema de trassão
It's a beautiful bike. Too bad you never got a chance to improve it.
Nice! Well done! Good looking model too!
th-cam.com/video/9ijzld_X0eg/w-d-xo.html
No chain ! Amazing creative ideas !
Salam Mohsen, your 2-wheeled (RWS is different ball game that requires different set of motor skills...) If U change it to FWS, it will work in shaa Allah ;-) Bro. Danial
What is there no footage of riding it?
A door having multiple keys will throw the state machine off unless the keys communicate
Yes!! Simplicity!
I can't believe I haven't seen this before. I was literally cheering at my screen! In-hub gearing and a trapezoidal steering link! Are you still working on this? I have a design for a 3-point trapezoidal steering linkage that incorporates suspension, that I dreamed up many years ago but never did anything with.
Don't like to meddle in other's lives but I'm designing a trike, care to share? :D
@@pedroclaro7822 Hi Pedro! I've got a huge imagination that sometimes spills over into the comments section. I'm more of a dreamer than a doer.
What is the bgm? So unique!
I'd like to contact you regarding this bicycle design in particular. I've visited your website and can't find an email corresponding to you. I've seen your trikes, which look beautiful. I'm concerned about friction in your drivetrain, though, and was wondering if you're interested in discussing some of this idea in particular. Thanks. Matthew I will give you my email if/when I get a response, thank you!
How can I build a sun Gear like yours
One of the coolest designs... Too bad you can't buy it :p
Der Witz ist: Ja, es funktioniert scheinbar, zumindest für eine gewisse Zeit!! Und man kann das schon auch nachbauen und es würde sich auch eine Weile drehen, ABER.... das Ganze funktioniert eben nur eine Gewisse Zeit!! Der gute Herr hier hat offenbar noch nichts von magnetisch induzierten Wirbelströmen gehört, die Magneten werden dadurch auf Dauer immer schwächer! Wenn man die Magneten wieder auffrischen wollte, müsste man (auf Grund verschiedener Verluste) noch mehr Energie reinstecken, als man vorher raus bekommen hat (somit bleiben die bisher unwiederlegten, physikalischen Grundgesetze der Thermodynamik erhalten...). Das ganze wäre dann also nur so etwas wie ein extrem leistungsarmer, schwerer, großer und teurer Energiespeicher, der am Anfang die Vormagnetisierung der Magneten ausnutzen kann. Technisch also wenig sinnvoll, daher auch nicht gebräuchlich.
hi can your gear design be install on a wheelchair wheel
Hi where is the freewheel
A shallower rake angle on the rear steering wheel would help this. Otherwise a great design.
Where can you buy these bikes or are they custom made?
my fist thoughts [ without reading everyone else's] (b4 reading that it may not balance) was that your interesting/peculiar steering pivot, in those combined radii, was to make the steering wheel track off-centre to the side it is steering towards !! But it wasnt.. I noticed when trying to ride a normal bike backward, was that the problem was; to turn left, the steer wheel would track out from under centre of gravity, to the right side, contrabalancing = bad. Perhaps all you have to do is to make your steer wheel track off centre to the side your steering to!!??,, by re arranging your combined radii arms!!!?? Lemmie knO whatchi think
Nice concept, bug there is one thing i dont get. when you disengage the brake on the outside gear, the wheel and its fixed central gear become the élément with the more résistance, and nothing prevent the outside gear to run backward, leading to loss of speed, up to complete stop, unless you are one a steep climb and the bike Will go backward ! i'm very curious to know, thank for answer. is this a school work or personnal hobby ?
Victor Vernay guy 4 get here 56j join I'm joy
Victor Vernay hello, I think this animation shows the sun gear (center gear) moving when the brake is disengaged, however it should not be moving. There's a freewheel mechanism that will make the ring gear to act over the wheel instead of the sun gear. Really nice design by the way.
According to control theory, a bike with backwheel steering is theoretically extremely hard (if not impossible). That is because the pole is to the right of the zero of the transfer function of the bike, where the transfer function for a basic bike with backwheel steering is: G(s) = C*V*(s + V/a)/(s^2 - g/h), where C is a constant, V is the speed of the bike, a is the distance from the center of mass (CoM) to the back wheel, h is the height of CoM and g is the gravitational constant.
We really want dual-wheel steering.
No idea what that means
@@DwAboutItManFrprobably not alot of folks do.
he needs 2 wheels on a chain driven live Axel in the front
You might want to contact me. I have an IHPVA article by Craig Cornelius. He did extensive reasearch into a RWS recumbent. His final bike, the "Vel-Aero" was very ridable. Also, there is another guy here on TH-cam with a successfull RWS recumbent. You have great fabrications skills by the way. Your planetary setup is really interesting and novel.
Dennis Renner might be the name of the other guy.
Correct
Recumbent bike- rear wheel steering? it is crap! Whats the point of building something that is not useable? This is not a bike, so it can not steer. ITS BULLSHIT. Sorry I hate to waste my time watching baloney.
+ShutterGuts Try thinking outside the box. I tried the same idea on my first Steampunk bicycle ,it didn't work ! But plan B will !! In the process of designing a FWD trike and most likely this will !!
+jesikebiking I have investigated the possibility for a rear wheeled steered bicycle. And i concluded with others that it is not going to work. So when I saw your titled of this video, I was highly anxious to see what you may come up with. You may see my disappointment when I come to find out there is NO riding bike in it. I suggest to rethink the title of the video cause it is misleading. Something like: rear wheel bike in progress. Its great that you develop bikes and I do like to see your progress in the development. A rear wheel trike has been done before more then once so that would be less of an achievement.
+ShutterGuts I agree with you 100% that 2 wheel FWD rear steer won't work, BUT- what about.......a delta trike ?? (( in the end will Steampunk it, that will make it different from the other rear steer trikes)) I've been working on mine for about 6 months with a lot of trail and error and am making progress will keep you posted
+jesikebiking for a delta trike or a quad it maybe better suited. But you'r still faced with some problems but due to the more stable bases due to the more wheels it's less of a problem. The main issue is the very direct steering character which could easily translate in to oversteer. Something needs to balance this out or it would be much to dangerous at any real speed (20 km/ph). The complication factor is that this balance needs to adjust to speed you're going. With front wheel steering this occurs automatic cause the steering will need more force when speed increases. With the rear this effect is opposite. When at more speed your steering input is multiplied in the output. This results in a very tricky steering character. There have been many experiments to showcase. Please keep us updated about the progress and show us new video's :)
+ShutterGuts I know what you mean. Over the last 5 years I've built some 75 to 100 , trikes recumbent steampunk and all of them have different ride features. No 2 handle the same .Learning to rear steer will take some practice . Hopefully my experience as a fork lift driver (80's-90's ) will help Only time will tell ! I'll start out on a large parking lot early Sunday morning LOL :-)
no brake?
freeman king why brake if it can't ride?
how is the gearing set up ,l live in fla. but do a lot of long rides [key west to bar habour main ]for domestic violence awareness,and fund raising, next i would like to ride to west coast of USA ,for this cause, ,is it good on hills ,ps lm no spring chicken, cheers Alexander.
sucks its not ridable it looks so cool defs like the front wheel design
A friend of mine could ride a bike sitting on the handlebars and pedaling backwards...
With fiberglass enclosed cabin and electric assist, you have the perfect city vehicle.
A rear-streered 2 wheeler is NOT ridable.....never !!! Sorry for the nice work !!
You are absolutely right. Well, until someone comes around and builds one proofing you wrong: th-cam.com/video/9ijzld_X0eg/w-d-xo.html Sorry for your broken prejudice.
How bout if you had the wheels all pointed in different directions to steer it in different ways.
maybe a video of someone ACTUALLY riding it would help convince us of its stability and reliability... I think you coul've done it it 18 months...
Весьма оригинальный лигерад! Хотелось бы увидеть его в движении! Браво!
Не увидите - мадам и десяти метров не проедет, как завалится на бок. Заднее управляемое колесо штука сложная.
True, Doc. My view also. But the key point is that the rider sits on the front part of the bike, driving the front wheel, with the steering head behind him -- and actually with the axis of steering running up behind his back and through his shoulders/upper back. An unusual centre-steer, with the pivot right at the back of the centre section, perhaps. Great bike though. The one in his vid is Mark 2. He sent me stills of his Mark 1. Slightly less easy ride, I believe. M2 is the real easy.
More than a year from this video and no road test.. So i think that it's not stable and drivable. What a shame! I like this configuration so much.. Brakes it's not a problem and a gear-pack into the hub with 11 speeds are available. An hydraulic fork on the rear would be easily mountable.. but.. if there isn't a road test of this prototype, probably, this project don't work.
Dennis Renner's beautiful creation is not really a true RWS set-up though. I'd class it more as 'Centre-Steer' (like a Python), just with the pivot slightly further rearwards than usual (for a Python).
Brakes?
We can have all the drama on the build, but the trick to to get a RWS ridable. This being 9 months ago, I assume it is not.
wow! how did u cut the saw wheel???
Dennis Renner has cracked the problem of a stable, practical, easy-ride FWDRWS. See his videos at recumbentartandpoems.
Hermosa !
innovative and very clean. curious about the stability and ease of correcting slow-speed imbalance. any video riding it?
I have such respect for your abilities. Why don't you try what I tried- make the rear wheel point at the point of contact of the front. This might require a (wobbly?) trapezium linkage but to my mind is the only way to get stability. Good luck. Mike.
Cool drive. Can you ride it yet? I tired building a rear wheel steer, front wheel drive recumbent 30 years ago, but I couldn't ride it.
absolutely brilliant!:D well-done mate;)
How is the ride?