MOTORS ON THE BIG 3D PRINTED TANK!
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- เผยแพร่เมื่อ 16 ม.ค. 2020
- This video was sponsored by Skillshare. Click here to explore your creativity and get 2 free months of Premium Membership: skl.sh/ivanmiranda6
Finally, I put motors on the big 3D printed tank! I made an 8:1 reduction box made from sprockets that run chains so they don't break as has happened before with belts. I'm pretty happy with the reduction boxes and the motor power but the mix of sensorless motors and those VESCs is not very good for precision and control so I'm planning a small change that I hope will make a huge difference. Stay tuned (and subscribe) for the next video so you don't miss what I have on storage for this tank.
The VESCs were down-powered to 10% power and motor RPM because I have had a few scares in the pasts with those and didn't want to risk a crash in the first test. There's plenty of power on the motors, those are 4000W motors and we'll hopefully put all that power to good use soon. Enjoy!
All the sprocket brackets and spacers where printed with Matterhackers NylonX on the PulseXE, you can find it here:
(affiliate link) bit.ly/2LSzveK
If you want to support this channel you can do it here:
Patreon: / ivanmiranda
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This gets more and more amazing as you get further and further along with it!
I bet it's bringing you memories 😉
Can't wait to see this tank with A CANNON :) I think there is one that can fit )))
hmm Joel you could put the open rc inside that tank with an exit ramp ;)
For controlling the tank while sitting inside you can use servo testers. You plug them on the ESC-cable like your reciever, one for each motor, and attach a lever to the potentiometers.
Giant tank vs Giant Open RC car
Careful drilling holes that large through those jackshafts, you're dramatically reducing the amount of torque they can withstand. I've done the same thing before and had them break on me.
@NW3D When you make an intelligent comment, I'll listen.
I would have replaced the bolts with a spiral pin.
Everybody else: "MAN! You can't 3D PRINT A RED PLASTIC TANK large enough to drive around it ???
Ivan Miranda: "Hold my cerveza ... "
An hour ago I wondered when you would have another video. Now I know. So many times I'm watching other peoples videos and I think to myself - They need a "spacer". Great fun!
SPACER!
Best 3d-Printed Projekt ever on TH-cam ;)
Please never Stop bulding Things like that.
Trying my best, thanks!
@@ivanmirandawastaken The Heart is gone :( In the moment you gave it to my I edited my comment
@@huemm1 Fixed
@@ivanmirandawastaken Thanks
Everyone: Wow that tank looks pretty powerful!
Ivan Miranda: I'm only using 10% of my power.
Us plebes: ...of course.
When he said 10% power I was like.... That's just nuts. Not gonna lie. I thought w/ all that resistance and weight those motors would struggle. I need to use a couple of those to make an ebike xD
Check Tom Stanton videos
wtcamer one of them is more than enough if you don’t want to go 100kmh. They are probably around 3000w motors that’s more power than most motor scooters.
Let’s start a conspiracy theory about how he’s the descendant of shaggy!
He's like red Shaggy
This guy is next level maker.... I just love that red filament...
Me too!
*mirament
@@ivanmirandawastaken it's hard to get in Australia sadly
It looks like a Lego brick
@@RamjetX Even more sadly AprintaPro since september is no longer making filaments...
Store: So how much red filament you want?
Ivan Miranda: yes
Finally, the tank is baack!
Yeah!
i genuinely love ivan at this point. he's probably the happiest guy who does this that i know of
Look into a track tensioning system cause it looks like when your tank goes from forwards motion to backwards motion and vice versa alot of slack is thrown under the sprocket wheels which could cause wearing problems or could cause a track throw. Lessening that slack would also make it more receptive to forwards and backwards motion and make it easier to replace tracks.
Not the issue
You're going to get slack at one end or the other, depending on which way you move; you can see it on real tanks as well. Given the materials, a track tensioner is probably not needed because the components wll wear enough to need replacement before a tensioning adjustment is needed. Still, having watched so many of The Chieftain's Hatch videos, it seems almost sacrilegious to show off a tank and not have a segment showing off how to adjust the track tension...
@@DmdShiva you chose well my friend Nicholas is one swell guy
@@ivanmirandawastaken If you can, I would recommend making the driving sprockets bigger, the same size as the road wheels ideally. Almost all real-life tanks have that in order to reduce track slipping and a few other benefits. Either way great work on this so far, it's really one of the first of its kind out there!
I actually drove an M60A3 Patton tank when I was in the Army. I saw your videos and watched you build this and I am very impressed!
Excellent work! I can't wait for your next video!
Yay! Pilot approved!
Wears a shirt that says "This (screwdriver) is not a Hammer"
Hammers bearings with a screwdriver
Perfect
Makes perfect sense to me 🙃
@@ivanmirandawastaken love that shirt. and the one that's a play on space invaders.
Well according to Adam Savage every tool is a hammer
@@emiliskog and according to snap on screwdrivers are not pry bars chisels or punches no mention of hammer
Rene Magritte ring any bells?
"ceci n'est pas une pipe"
I swear to God this tank looks like the British WW2 prototype the A-32 a.k.a. "Excelsior"!!!
Well done Ivan!
Didn't know of its existence, I'll have to check it now.
@@ivanmirandawastaken sorry, little correction, its called A-33, not A-32!!! Sorry!
@@i.b.9946 Noted!
The coolest skateboard i've ever seen!
Not for long...
I'm going to take a minute and let sink in and appreciate how much you put into this and how awesome this project has become over time. as well as how much joy it (and your person and presentation) has given me. well freakin' done and thank you, Ivan! can't wait to see what's in store for the rest of it and you. you have so outgrown that Ikea closet!
what kind of people disliking this video ?!!!!!! one of the best makers on TH-cam ever !!! keep it going Ivan !!
И вновь Вани строят танки)
And again, Ivans are building tanks.
You freaking madman, you did it, the tank is absolutely beautiful and seems super super fast, now you gotta put a seat on it and take it for a top speed run!! amazing work Ivan
Thanks!
Great to see you back, fridays have been boring without you.
Had a rough last month, upload frequency will hopefully be better from now on
Watching you make these things is amazing, I hope that you continue to experiment and make fun things to enjoy!
Of course!
when the tap broke, I cringed, but was amazed at how you easily worked it out with patience. nice job.
I hit subscribe as soon as you said "sponsor time!". The joy and energy with which u said that communicated a level of love and passion for what you do that can't be faked and I love to support creators like that! keep it up man!
not to mention the level of craft is crazy. fkn love it guy
wow great editing too objectively great video srsly
"this is not a hammer" great brand message too im officially a fan hahaha need the merch now too
Yay! Thanks and welcome!
Use bolts with an unthreaded shank section long enough that there are no threads within the holes in the axle shafts. That will greatly increase the shear strength.
Why anyone would give this a thumbs down is beyond me. This is just awesome. No other word describes it. Ivan, you would be a heck of a fun dude to know!!! Can't wait to see the next video!!!
This is insane (in the good way). One mechanical note: If you start watching at about 13:35, watch the trailing end of the treads. There is some slack in them. Looks like almost enough to cause trouble, when you get out into the world. Maybe see if you can take out a tread? If not, try adding a tension roller somewhere on the top if the tread?
Keep it going. Can't wait to see this thing finished.
Damn, this guy needs a million+ subscribers.
Agreed
While building tanks with lego, it always helped to use 4 motors instead of one. It drove more strenghly. Also, when you finished the tank pleas build in a screen inside connected to a camera and drive im public with the top closed on it
Great video ivan, your content always makes me smile.
Mission accomplished!
Hands down the best channel of 3d printing and its possibilities.
Thanks!
Love the noise of the tank traveling along the floor, sounds great. Great job with the BIG build :)
It's even better in real life
Great project! You need encoders and ODrive ;)
Shhhhh!
And maybe a better gear ratio would help. A cheap Chinese planetary gearbox or something, if only someone had a super cool TH-cam channel with many videos on the subject.
Seriously nice to see my favorite TH-camrs watch the same videos.
AWWW YISS!!!!!! Finally!! You certainly haven't disappointed! 😂 It's glorious!! Broken or not, I can't help but squee with delight!
Yassss!
Yesss i missed this tank🔥
I have to give it to ya, that gearbox is a thing of beauty.
Now you gotta make it so you can drive it while being in the tank your self that would be really cool to see
That's the goal
Happy to see you getting more tools in your shop! Wishing for your success! Your videos have always been something I look forward to each week. Have a good year Ivan!
This is amazing to see it from the start to now is super amazing I cant wait to see it finished with a turret on the top keep up the great work
Thanks!
Wow your drill press is very quiet
A good trick to get a broken tap out is an automatic center punch. The tap is hardened but not tempered so the punch will shatter the tap.
Thanks for the tip!
As always, mind blowing!!!
Thanks!
Nice.. Congrats on getting it motorized!! Next up Launcher!
Yesss!
Who else was not surprised that the part that failed was made of steel! :o)
Me
To do something like those intermediate shafts, you could save yourself a whole lot of effort by buying shaft with keyway already cut in it, and then just print your bushings with keyways in them. No marking and drilling necessary.
A 3D printed keyway wouldn't last a 10th of a turn
I'm not sure where you have received that information but that is absolutely 100% false. It is by far the strongest way to secure an object to a shaft against rotational forces. The surface area is significantly larger than a through pin, and it doesn't significantly weaken the shaft like cross drilling does. I would be shocked if you don't break a shaft soon now that you have moved to an M5 hole. The only time a rotational load is secured to a shaft with a through pin is actually when it is intended to be a failure point to prevent damage. For example, the screw in a snow blower is secured to a shaft with a pin so that if you hit a rock with the screw the pin will sheer and not damage the entire machine. You have essentially secured it with a sheer pin. In the next couple of weeks when I have time I will make a video testing a 3d printed keyway versus a through pin and make a video for you with the results.
Some kind of seat back that acts as a protective shield between the driver and those motors would be a good idea.
Thank you for sharing your work. Results are great and really inspiring. I also appreciate a lot the way your video are, based on realisation instead of theory, which makes them entertaining too !
Thanks!
And here you can see Ivan Miranda in his natural environment aka around red filament.
🙃
I can't watch this without a big ass smile on my face because you made a damn tank lol
YES!!!!! I's a TANK!!!!!!! Great job!!!
This is incredible to see moving under it's own power. Looking forward ( and backward ) to the next instalment. Cheers, JAYTEE
Thanks mate!
Hola Iván. I've noticed your tracks have a bit of slack. That can pose two problems: 1 a lack of control, as the lower side of the track has to get in tension to start pushing on the tank. The second one is that until that tension is reached, the sprocket has time to speed up and then it suddently grips, causing a huge stress on every part of your transmission. That may be a cause of your bolt breaking haha. I don't know if you already had that in mind and you are going to fix it, if not, well, I'd be glad if my comment helped you. However I would be careful tensioning the belt too much, as it could snap easily. You're a very smart guy and surely you'll find a way to fix that. Me encantan tus vídeos, sigue así máquina 👍🏼
Just wait for it...
Looking good! Good to see the tank moving under its own power! Setup exponential rates on your transmitter or ESCs. That will allow for finer control at slow speeds and makes movement smoother.
That's not the issue, the issue is that the VESCs don't know where the rotor is due to the motors being sensorless and the low speed. I have a fix for that... 😉
This will be the new craze,
Tank surfing
U spend an 2 hours driving that thing and you'll be a pro. Its like the first time using a zero turn mower, your all over the place, but once you get the feel its beautiful.
Congratulations Ivan. This is awesome. Really impressive that in a modular 3d printed design, the weak point was a steel m4 bolt. Shows the quality of your design and engineering.
Great to see it finally moving! I'm wondering though, what about cooling those motors (and ESCs)?
Those are (for now) under no stress whatsoever, completely cold. Will see what happens in the next video though...
@@ivanmirandawastaken Fingers crossed!
something else will break before those are a problem
I was convinced the thumbnail was clickbait, but holy shit this dude is serious!
There needs to be an award for breaking a tap in plastic
That was steel my friend
@@ivanmirandawastaken what was that usual surface finish from? it looked like the bottom layer of a printed part
Badly machined steel
this would make a sick tool cabinet
Ah finally :) I was just waiting for this video. Checking almost every weekend. This project made me so anxious. Please don't keep us waiting long for the next video. Would love to see some adventures outside on the beach and hilly terrian.
amazing that the 3d prints hold!
ok Mr. Madlad here is a little something you can do to improve steering a bit. see those support wheels in the middle? if you make it so they are (in the case of this build) about 1 to 3 cm higher than the rest of them, you will increase the ground preaure in the middle while reducing it on the ends, this will allow the threat belt to slide better on the ends, thus increasing turn control and efficiency.
You're correct, but I have something better in mind (mwahahahah!)
You madman! This thing is so cool! Now i want to go and make something :D
Something to consider that could leave you a little more space for the motors, Instead of a multiple sprockets to get your reduction , could try worm and wheel instead, would have the added bonus of when the motor is not turning the drive wheels are locked (can't back drive a worm and wheel setup).
Also a flat ground into the shafts might work better than drilling a hole through the rods and forcing all that shear force onto the bolt shafts (think grub screws like how you attach a coupler to the shaft of the stepper motor).
Wow! That’s awesome. Keep up the good work!
Thanks!
Amazing!!! Great job Ivan!!! Please keep making awesome things for us!
Thanks! I will
You know what they say... "It's not the best choice, it's Spacer's Choice!"
Ivan you're cool! And you've just made the sentence spacer awesome.. S-P-A-C-E-R-!
SPACER!
My heart goes out to you with your tap breaking. I know the feeling
This dude seems so genuine , I’m subscribing
That tank looks really great!
Thanks!
GOOD JOB IVAN,,,,,LOVE FROM INDONESIA......
Thanks!
It's not too grippy, it just doesn't have enough torque to overcome the friction
Those two things are inevitably correlated
I want to make big project like you, its Amazing !
Maybe you should put an arduino in the tank and pass the control inputs through a moving average filter or limit their slew rate. This smoothes out the spikes of acceleration you're having trouble with.
Nope, not the issue, wait and see...
This is going to be an awesome machine!
Yessss!
Would adding some 'non-linearity' to the controller axis aid in low speed control?
The tracks are looking like they need some tension, they look slack
Cant wait for the next video mate!
Not the issue, you'll see
5:50 Hoo boy. When one of those screws works itself loose, that's going to make such a wonderful noise.
Try adding negative exponential on your left and right, this should cause the inside track to reverse or reduce its speed faster, giving you better steering control. Set it at -10, and keep decreasing until you feel the effect is where you want it.
That's not the issue, you'll see
It's been a long journey Ivan, Congratulations, it's that much closer to the finish line. :)
this put a grin on my face
Yasss!
Just incredible mate
Thanks mate!
Nobody:
Ivan: SPACER!
SPACER!
@@ivanmirandawastaken Loving the enthusiasm Ivan, also this thing is absolutely epic!
This is completly insane.... but COOL !!!
i wish spacers made me that happy.
Find yourself in need of one and you'll see
this needs more views, this is amazing!
This man is ready for the boogaloo
looks like the right vehicle to go grocery shopping with
its a good start to something bigger , think a heavy frame and drivetrain and tracks with 3D printed parts instead of 100% 3D printed , it will survive longer
Once completed you should sit inside the tank with the cover on and fit a camera to the front. Using this camera drive around your town/city and get reactions
Awesome, it's finally done!! That tank is massive!!! You know Colin Furze mentioned something about making a tank soon, you should have a tank battle! 😛
This just the beginning.
The problem i see is colin has a known love for fire. 3d printing and fire dont mix
@@gazeddy haha....So true! 🔥🔥
You should use bolts with shoulders(those bolts that dont have the thread along the whole lenght of the bolt) where sheer is expexted
I have none the length I needed
@@ivanmirandawastaken Or use hardened steel pins
Again, none in stock, if I go and buy every single "ideal" component I would make a video a year 😂
Should make a printed rideable hovercraft next!
Now I want one!
Looks like the suspension is a bit tough for the weight of the tank (for now), maybe you should consider making a more light suspensionso it dampens better the movements, your tank is amazing and looks robust but it's still plastic fighting against metal , Great video
Think about how the suspension works...
So much fun.
Should probably look into high grade metric bolts for the axles, like 10.9 or 12.9. They're much stronger than regular 4.8 or 8.8 metric bolts, in some cases by double or triple tensile strength.
You should attach something with Ardupilot Rover and a GPS module, so it can drive around autonomously... would be cool with a big thing like this!
Really fantastic job, Ivan!!! Really well done! 😃
But those motors are tiny! 😬
Those pack a punch, you'll see 😉
Thank you for clearly indicating sponsor time!