Screw Drive Vehicle - Extreme Off Road - Part 10 - THE END 

This video is getting a lot of extra views because of Colin..

@@896gerard it's good for this channel, check out his videos he's doing great stuff ❤️

Will be an interesting comparison. Cause furze is building his ground up. Where as this is a ride on lawnmower conversion.

I searched for this

Me, 2 days later.

Thanks man! Glad you liked it....its a work in progress, hehe. Im on part 12 now! Geeze....

mashcus "screwed" lol

mashcus

,,

umar

Decent !!

*****

Better with her having a screw machine?

Your wife isn't nearly as cool now.

Depends what she wants to do with it

They use them on the Model T. 1929.

heman691 yes I saw the video on YT

But it wasn’t reliable, it would break if it hit rock etc

Still produced and used "ЗВМ-2901"

+PiperCub49 thanks!

Da Man l'm dead you bitch 😂😂😂😂😂

+Darth Annoyance yeah you are very right!

+Darth Annoyance I was thinking: "I would have used hydraulic motors directly, instead. See if anyone else said it.."; First comment! What did scare the shit out of me though, was what might happen if you fell off, or something got caught in those screws (or the open drive chains).

+George Bowles thanks for the input! check out my newest video, i would be interested to see what you think of the size of my new screws. thanks!

+REDNIC79 you my friend are a beast

+George Bowles 100 bucks says this guy don't own a toolbox!! armchair pencil pusher LOL "my father has built many different things" pshhhhhhh

+K0AXE Think what you want, but, you do realize that I made a typo. The "torque on the chains" was incorrect. Should have been tension on the chains. Armchair pencil pusher? Hehehe. I laugh. But, you are correct. I don't own "a" tool box. I own a full set of tools plus a pretty extensive one for both the car and the truck. So, egg on your face, however, I won't hold it against you because my typo made my paragraph sound stupid. Also, when I said "My Father" that actually "My Father and I" since I often had a fair amount of input. Regardless, how was your comment helpful? I was at least attempting to help, though, it looks like this guy's mechanical abilities don't need much support from me. Please, try to be nice instead of criticizing people.

+George Bowles Ehh why feed the Troll's? Keep up the creativity & fun, Thanks for sharing with us! :D

+Zach Hoyt thanks! mower boat? sounds interesting

Mower stripped down put on aluminum frame + aluminum jon boat. I was trying make it a 4x4 but wasnt successful so settling for 2w.

+Zach Hoyt right on! so it would be amphibious?

+Zach Hoyt Pond with too many reeds in it?

No lots of gators lol

mazdalorean

5 aawqq

+justin taylor hehe, thanks!

Trevor Lahey

thats a big moose eh?

+Nad Ronnoco Art thanks!

+decoysk Will this fit on my Honda?

+decoysk Yes, they actually need to have enough buoyancy to float the vehicle.

+kenya catholic Yes exactly, that's what I was thinking. They need to be like pontoons that way you have the buoyancy and stability needed to carry a much heavier drive.

+decoysk Right a tent stake would stop it now.

+stroull thanks for the support!

stroull

Kriss Femmpaws yeah your are right in some ways for sure....although i still needed a way for the transmission to 'slip' in high load situations, such as a jammed screw. thanks for the input!

REDNIC79 Use a shear bolt like they use on a lot of farm equipment it's easier to replace than a jam screw. Go look at an old hay rake or bailer,

Kriss Femmpaws you are the first person to mention that idea. It so simple i cant believe it had not crossed my mind, hah, if i would have done that, im sure i could have saved it! Some times its so hard to not over think things, i get caught up in my own mind. Thanks, thats great stuff, so simple, so smart.

REDNIC79 one advantage I have is 45 years working on or building stuff so I have a good background. I would say make your pods about 4 feet longer and the helix pitch about half of what it was. By making it longer you will have room to put in failsafe in the system. I would look using belts for steering clutches and that would be your safety.

REDNIC79 stvarno :) hahahahahaaaaaaaa very first person....hahahahaaaaaaaaaaaaaa it is serbian idea 1950's russian army very used this serbian idea.

+luciano gianfiori That's what I was going to suggest as well.

thanks! i havn't given up, check out my channel, rednic79

REDNIC79

Jay Berry 6

Zach Gregor b

most inefficient machine i have ever made :)

Nicholas Sanche

Nicholas Sanchez

Nicholas Sanchez

wes

+Mr G thanks! Check out my channel rednic79, im still workin on it!

He didn't invent it ... It was invented in 1907..

+Todd Verdin yep, its quite fun

o

Dan Grecu what

Grumpy ol' Boot yeah i'm thinkin thats the best bet....seems hard to find a cheep wrecked one here, i've been lookin around though. sideways roll would be sweet! thanks for watchin

REDNIC79 Quite welcome, always fun to see people's creations. Which ofcourse means I often end up in the russian part of youtube ... and *man*, they got some weird stuff over there! >_< Alternatively, you could make it into a tracked vehicle, that could be fun too.

Grumpy ol' Boot yeah i really love some of those russian creations, people think you crazy build that kind of stuff here, but its sooo much fun!

Grumpy ol' Boothehe

+RAFAEL MUNOZ thanks for the encouragement!

Wasn't the concept developed in the 40's or something ? Pretty incredible performance...interesting idea.

Jeremy Harany yes is been around for a while...look up fordson screw drive. thanks for watchin

RoadCaptainEntertain He shoulda said a little man prayer before starting

If the women don't find you handsome, they should at least find you handy.

+JR Conner i'm workin on it. almost got the new screws done, check it out on my channel, ru-vid.com thanks for watching!

But bigger screws requires more torque, so that's harder on the trans.

Steven King But powering it by hydraulics would remove the transmission from the picture

Steven King Sure would. Maybe do some gear reduction after the transmission... To reduce the stress on the trans itself. Interesting and cool project for sure.

kens97sto171 That's a damn good Idea!!!

kens97sto171 Good Day kens97sto171 . This drive mechanism is is what I thought up about 20 yrs ago , it'sa very intriguing ; helicoidal drive , screw drew drive , spiral drive . Just like a mechanical "helicoil" I, m an aircraft technician since 1980 , I went through college for tool & die design and started out out in Military Turbine engine . Toronto , Ontario , Canada . When you're explaining an idea to engineers or tool & die makers it always works to make use of an example . Could you please extrapolate with this example of hydraulic drive in this application ? . Do you mean a torque converter drive ?

joe muncey its not costly, the builders over here like Howe and Howe tech just use ZTR mowers to source all the parts.

Diesel Ramcharger kg. Gvhgh fb and q12eeetr

william mayor Yup, you're an idiot. I totally agree!

Well I'm guessing my kids have been playing with my phone again. Thanks mate

william mayor lol well that makes total sense then!

+Greg Campbell thanks for the comments! yeah I'm still workin on the current design....the tractor has sentimental value to me :) I think you are correct though. thanks for watchin. more to come

Use larger sprocket might help

So how is it going? I want to see more of it. Its undeniably slow but its fantastic!

🤔

quite the prophetic comment

wingman358 no i have not done any force analysis, but i would love to know how. is there some kind of equation as far as augers are concerned? if i do decide to go hydraulic, it would be very helpful to know torque requirements. any insight?

REDNIC79 To determine what the maximum forces are put on the drive shafts, do this: take the total weight of the vehicle + cargo + driver, and that is the total force that the pair of augers must be able to exert into the ground. That total weight would be if you were driving straight up a wall somehow. Obviously not possible in reality, but easy to think about. In most cases, the augers won't ever need to exert that much force, but it is handy to know the upper limit. Now take that weight/force and divide by two (for each auger). Multiply by the radius of the auger, this is the torque required to turn the auger (at the maximum condition). Divide that by the gear ratio between the driving shaft and the auger, and you get the torque the driving shaft must achieve to turn the auger. Divide by the radius of the sprocket on the drive shaft, and you have the force that the shaft is putting on the chain. That force is the same force that the shaft must hold. The more force and the further away the force from the support, the stronger the support must be. In this video it looks like that support is the transmission housing/transmission bearings. It's no wonder the case cracked! The easy solution is to add more supports and have them close to the applied force (the sprocket). So in your case you should put bearings at the end of the drive shafts. Even better would be two bearings for each shaft, one on either side of the sprocket, as close to the sprocket as possible. To take it a step further, you would want bearings on the ends of the auger shafts too, otherwise you are likely to bend those shafts. Another thing you could do is to beef up the shafts. An increase in shaft diameter of 10% is a 100% increase in moment of inertia (resists bending), so small shaft increases result in much more strength. That might eliminate the need for more bearings. I'd recommend both though if you really want to make it killer. I think your set up is very close to being bullet-proof. You should look at your design and build as very successful, since you were able to drive it and you did get through the flat mud. I am very impressed. The motor seems strong enough, the concept is proved, all you need now is a little reinforcing at the shaft ends and it should be 10x stronger.

does that work out? i'm thinking the resistance that needs to be overcome to turn those screws would play a factor in the torque calculation. the weight of the vehicle is a factor in that resistance but torque requirements will change depending on what torque screwing through would they not? if i was going straight vertical through a bowl of wet concrete, the wet stuff must factor in compared to looking at it as just the diameter of the screw itself. actually there is an interesting paper on the internet about it. check this out. scholarcommons.usf.edu/cgi/viewcontent.cgi?article=4774&context=etd

This looks like a great paper. I think the mathematical analysis there is lacking, but its descriptively pretty good. Good place to start. The off-the-cuff calculation I wrote earlier was a bastardized way to arrive at an absolute max, neglecting many things such as actual inclination of the vehicle, screw pitch, submergence of the screws, friction, rotating inertia of the drivetrain, drivetrain frictional losses, etc etc. I still think it would be handy to know in a quick and relatively easy way what the approximately very worst case scenario might be, because if your vehicle can withstand that, it should be more than adequate everywhere else. You probably don't need to do a whole lot of calculation anyways. I think you could easily add a couple more bearings and conquer the mud pit.

wingman358 yeah, its hard to say, the calcs would come into play when deciding on what hydraulic motors to use

moulin6801 yes when its turned off

+Randy Smith thanks!

+Iver Jacobsen wow that's very cool! I wonder how they made the screws strong enough? must have been quite the machine! thanks for the comments, and for watching!

Hahaha

😆

Nicholas Cabrera Screwed X2 at the same time. I have seen X3 before butt that's a different story

Nicholas Cabrera....wow i didn't even catch that until now... I guess i should be pun-ished

Cabby Cabby j

Put a bigger motor on that thing you crazy?

Н

underated comment

Sorry, I gotta bolt

Hahahahaha

He screwed up

my thoughts exactly

Good idea, but cost is what made him do it with what he had available. If you don't fully understand how hydraulics work, you can really waste a lot of money really fast. Keep it simple unless you're made of money.

@@scottmackenzie6796 Hydraulic is actually quite cheap!