@rctestflight how much torque does it have? Could it pull/tow you in the snow or on the sand ?

I'm building a power wheelchair I don't have all the kinks worked out..but I want to use hub motors so I can do 40ish

what song did you use for the montage at 7:45? the description is sadly incorrect. clicking on the link leads to a different song for me, and searching for the song on youtube leads to a completely different one, neither of which sound like the song used.

Hey, idk if you see these comments but what if you made it a little larger and heavier so you could either put 2 motors in the front and back instead of just the front or put 2 in the front and 2 in the middle with a support wheel in between the and then have a dead axle kinda deal in the back where all the controls and batteries etc are

Seen goliath in battlefield 5? Imagine this shit wired with explosives cruising at 70 km/h towards enemy tanks.

technically the RC tanks can already fly, just not controllably

*ground effect tank

Oleg Antonov enters the chat

The Aerogavin shall be real!

Mike Sparks will finally be validated

The rc snowmobile community has had the tracks going 60+ mph it's insane how the links hold up! Note they are not rc test flights tracks

3D-printed plastic is solid indeed

That was my first thought - that the treads would stretch at high speeds, and any wobble would send them flying.

😲

Yeah, I was going to say "all that weight and plastic gears!!". Good going.

while he terrorizes geese and rips up the lawn at the public park...

@@travissabo8792bro is a lawn 😅 what he ruining??

These snow-cats seem to make great hound baits to get the doggies running

Taking a hit from that snow-cat looks painful! Hope the dog is okay.

@@Mattle_lutra I was gonna say this, that thing's pretty heavy and getting hit with the moving treads can't feel good.

Imagine if they mounted a camera on one of the dogs :)

@Repent and believe in Jesus Christ Thnaks for this irrelevent fictional interlude.

Yes, definitely very cool, almost looked like a video game to me)).

1m/s = 3,6km/h

That's insane ! Basically highway speeds there. I'd definitely be scared to drive at those speeds without generous distance between me and other vehicles. Also the acceleration! Probably because it's relatively lighter than a motorbike. I wonder if it could reach speeds of gas powered ones on a tarmac with an appropriate track / wheel?

@@dmitriiar2178 definitely felt like video game footage with the drone recording!

That's what she said

Why the Bible verse?

​@@PCrailfan3790some kind of mental disorder

DANG that is FAST

@@YoursUntruly lol

Solution: don't use plastic?

Softer/more flexible plastic, or tougher plastic. Something like Nylon.

TPU?

@@ldub0775 ah yes, just add a zero to the cost. The optimal solution.

Polyurethane

First thing I noticed... Other than happiest dogs alive finally giving chase to a worthy adversery XD

it was well built, motors are sync and the board is long enough to reduce the derivation

Its likely it could stay on top of the water for a short time because it's mad of plastic and the tracks are reasonably wide. Probably not waterproof though...

Some pontoons to keep it afloat to test?

@@Gainn nah, this thing has enough power to skip right on top of the water, I'm not sure how stable it would be. but the speed is more than enough.

@@MrGuliton I'd agree it has the power. The problem is if it stops.

@@Gainn the problem is *when* it stops

1 like in 2 weeks

@@FLYBIRDSS I am not here for likes bro.. Ive had as many as Ive needed in my life :) I came here to congratulate a fellow OG KZfaqr on a great idea

@@TheRealRCSparks im not hating im just saying...

The AR platform rifle tends to perform better in the muddy and wet environments then the looser tolerance AK style rifles. While the AK performs better in the sand. Both perform pretty awful if you let them get really wet and then freeze though 😂.

@@BodilyFunction I've heard the best thing you can do for freezing conditions is to strip all the lube out so it can't freeze

@@Synergy7Studios it kinda depends on the kind of lube. A bit of oil based lube is ok in some areas but water based lube is no go. It also depends on actual temperatures aswell as just where the water gets to.

@@BodilyFunction I just remember the soldiers in Korea found that their garands ran better in the harsh winters when they ran them dry. Their oil must have had a high freezing point.

@@Synergy7Studios makes sense but also garands are a bit different to ARs.

Yes! As a bonus, add in pitch control to hold a perfect wheely for max acceleration!

@@ericcmcgraw thats what i was thinking, since he already has an ardupilot install. I THINK Rover has pitch control in one of the modes. I know it has yaw control that countersteers when you get too much roll because I'm using it right now.* *although it's a little laggy and gets into weird oscillations on rough ground that lead to rollovers anyway

thank god someone else saw it too

Just make sure everyone uses the same motor as the only limitation. And then let them race!

@@AndreyAntonchik Why not open class? Push it to the limit. May the best builder win!

@@pineapplepenappoodlepen while fun, that also quickly becomes "may the builder with the deepest pockets win". Definitely would still want a class with spec limitations in order to get more people to participate.

@@pineapplepenappoodlepen People would just build buggies or truggies similar to what you can buy right now as those are basically proven to be the fastest designs.

did you not see 8:46 ? rip doggo

There are also hard acrylic conformal coatings designed with high electrical resistance as well.

Yeh, really a shame this isn‘t a product you can buy. Maybe outsource the whole packaging and distribution to some rc-company? I‘d love to build one if I ever find some time to do so..

How much would you pay for this?

@@johnjallen The initial buy in I remember being good value, I would have jumped in if I wasn't tight on cash at the time

Looked faster than 15mph

Let’s see some of them!!!

​@rctestflight I'm curious how much did this cost you to build this little RC tank?

@@Nightowl5454 easily $1000-$2000

I think he's using cast tracks and not printed so they sould be plenty strong as is, it's just that hey are too wide to cope with the forces of such high speeds on solid ground, though on deeper snow wich they are designed for they seem to do just fine

Lmao, watch the latest Zach Friedman filament video. That stuff is awful

​@@FayezButts Are you talking about the "CF-TPU by SmartMaterials"? Because that's a completely different filament. The standard hard TPU from Extrudr is one of my favorite Materials ever. It's super tough, easy to print and I'm pretty sure that the CF stuff is awesome too.

To reduce internal friction you could print the track guides out of a filament composed partly of teflon. There's a couple out there now and supposedly they feel so slick that they almost feel waxy.

I also wonder if you could reduce the air resistance of the snowcat by deflecting the airflow upwards before the treads. Downside would be reduced downforce and therefore traction.

The only issue i see with this is that the side of the track in contact with the ground should be under tension, so a long toothed belt would be needed to transfer the drive from the motors up front to the track drive sprocket at the back. That said, the track tension could be high enough for it not to be a problem! It worked well in the snow going backwards! 😄

I read that as testicle monsters from Mimic😅 Had to re-read it realize what you were talking about 🤦‍♂️

it looks like that scene at the end of the movie with the water and the damaged plane.

Look up your local maker spaces and go talk to companies that might have cnc machines. My local machine shop went belly up, but guys that worked there put up their own company and owners dad that was going to retire still works there as a hobby and to help out. I can get machining jobs done fore fraction of the cost since i'm not in hurry to get anything done so they can fill their schedule with my jobs when there is spare time around in shop. Same thing with welding jobs and anything really. Most welders dont mind doing quick job on the coffee brake or afterwork if its not that time sensitive or large and usually pack of coffee (around 5€) is fine for them as they get more life juice into break room. So my advice is to talk to people. This is how you learn about possibilities around you. For making RC parts, most can be done with basic CAD (cardboard assisted design), jigsaw, hacksaw, grinder and some files. Holes with drill press specially if you are using aluminum. Just be patient.

any suspension would reduce the acceleration and the battery, to much energy lost in the suspension. Maybe if you just find a way to allow suspension only when not accelerating or under 90% of max speed, since suspension could improve durability at max speed ^^

@@alixhascour1715 I wouldn't be so sure, if it has more constant contact with the ground across the length of the tracks it could actually improve on acceleration simply due to better grip, especially with the high torque of these strong motors. Battery life loss probably will be mostly negligible.

The tracks are cast. Idk what exact material they are, but 3d printing will be worse.

Doesn't tp lack stiffness and strength though? I think you could get a lot of mileage out of a dual-extruded composite of tpu and something strong like PC or PA. But maybe figuring out how to make the best gcode to tune the mechanical properties you want is a PhD-worth of work.

@Charles Lambert TPU 3D Printer Filament Definition Explanation (Thermoplastic polyurethane) is a type of flexible and elastic 3D printing filament. Its rubber-like elasticity, resilience, and durability make it suitable for uses requiring impact-absorption and a soft-touch surface.

@VulpeculaJoy they are not cast, they are 3d printed, he shows in previous videos he 3d printed the entire tracks

Bearings arent possible with all the dirt and sand they fail very quickly, even real tanks and bulldozers dont have bearings in there tracks.

Mechanical roller/ball bearings would not be a good fit for this purpose, but a bronze bushing would fit this purpose very well

@@jonasstahl9826 You're right that the large tracks used on excavators and bulldozers don't have them but the OP's point was about the centrifugal forces tracks experience at significant speeds. Even fairly fast tanks are unlikely to face stress from centrifugal forces that even approach the forces from the usual driving torque acting against the vehicle weight/inertia and a bulldozer clearly _never_ would.. I don't know if bearings are the only solution but I don't buy the idea that sealed bearings couldn't be *a* solution -- if a slightly costly one.

@@whatelseison8970 The problem is the weight of the bearings, if I remember correct each of his tracks has 60 links, you need 2 per links, means for both sides you need 240 bearings. The cheapest sealed I have found are roughly 0,60€ means 144€ in total. Also the weight lets say there are 10 grams each that makes 2,4kg/ 5 pounds. You also need enough material thignes to fit the bearing, that makes it even heavier.