It does a good job, however needs more damping indeed. Switching point of interest instead of accurately following it is what's needed. And personally I'm used to a signature steady wide open shot with a lot of machinery in the frame. Change is not always good. A lot of videos today are dynamic and shot from a handheld cam. James style stands apart and that is good IMO.
@@kittguy And another bunch of videos are filmed on a tripod, with wide shots. James' style wasn't special at all, in fact a robot filming him IS a special style he needs. Just needs some tuning, that's all.
It's a VERY good machine to carry a quite massive load and for keeping it level and stable. But for it carry you a beer while you're feeling lazy... well I think it would be warm by the time it got there lol. You did mention that it was overly complicated, and I agree... for SIMPLE tasks. But it really is the perfect design for what it was based on (cleaning the stairs)
If I were to do this project, I would cheat and mount a track on the wall that the robot could attach to and drive itself up the wall like one of those stair-lift-chair things. Or attach and detach itself to an installed winch or crane. That would only help for a home use that's planned ahead of time like that - not really as robust as a solution as this robot that could go up many different types of stairs. EDIT 12:32 in the video he has the same idea haha I wrote this comment before finishing the vid
The new camera rig seems like it's working out great, but with this project, because you've already added the 2kg weight shifting element, why not just use two sets of balancing wheels and a single actuator between them?
Funny - I had the opposite thought - since it's using 6 wheels, why have a shifting mass when you could just add a static mass to the middle section? :P
I'm pretty sure sensors were limit switches when I was learning robotics back in the 80s. There were infra-red sensors too, but there's nothing wrong with an, *ahem* _simple touch sensor_ AKA limit switch. :)
What would be super cool is if someone could make like a rail system around a house that bots can attach to and ride around. For the stairs the rail could go up a wall and then across the ceiling out the way.
Love the multiple different types of pullies and different engineering designs in this. On a quick note you should try to use mecanum wheels, they give lots of control when used right and you can go in almost any direction you want!
🤣 You think a university would only take "years"? 😂😂 An academic would sit on a problem like for his/her/its entire career. And in that time he/she/it would build a medium size research group, obtain squillions in taxpayer funded grants to fund said group, reach full professor relatively early compared to a more esoteric academic colleague and then spend the rest of his/her/its career dining out on his/her/its one pony trick without any of his/her/its sponsors ever really achieving a commercially viable product. Even more sadly he/she/it will successfully supervise higher degrees and they too will follow in his/her/its path at his/her/its institue or some other. And so and so on and so on. 🤣😂🤣
I gotta say I switched to Onshape about a year and a half ago when I switched to Linux and coming from fusion I gotta say I love it and I love to see them sponsoring you
nice automatism . You can also try triangular wheels (one wheel on each vertices), all three powered by a central sprocket , and the triangle turns and grips . Like a powered climbing stairs cart
I see you use your camera robot for filming now. Thats pretty awesome that you get something really useful out of your inventions as well from time to time.
If you can find it have a look at the British Army's "wheelbarrow" from the 1980s. It is an EOD robot that carries tools and can negotiate stairs no problem. It uses tracks and has a hull that slides fore and aft for centre of gravity control. Well done on this design...
Awesome job man. One suggestion. Instead of shifting weight, you can use flywheels. You can control their speed and direction to adjust the angular momentum. I think it will be comparatively simple and compact.
At least, I think you can automate the stair climb with 1 sonar sensor on the front: You still have control of the driving of course. You can drive it up to a step, and hit a button that will start the stair climbing (maybe with the same button to stop the auto-climb so you can take over too). The program will first make sure it's close enough to the step, maybe even bumping into the step. It will then raise the front section until the sensor doesn't detect a close object. It then drives forward a set distance, stopping if the sensor gets too close to the next step (if there is one). I'm not going to write out the whole thing, but I think you can get the idea for the algo from this. Just one sensor needed! :)
If the compartment of the battery can move to accommodate for the change of weight in the direction needed, that's a huge win for efficiency. Now imagine being able to do this with more than one battery separately for even more control and capacity.
I know for a FACT you used your camera bot and damnnnnnnn that lil homie was build by a pro cause it didn’t miss a shot. Love the video have a great day!!
Fantastic as always. I thought that seven minutes to get up the stairs was quite impressive. :) A few weeks back I thought that your motion camera rig was another amazing project. However, when you use it now, there are parts of the video (like the closing section here) where I have to look away as they make me fill quite ill very quickly -- the mimicking of a drifting hand-held camera with no stabilization is too good! :) But this may be just me.
Such a cool concept! Well executed too. I'm curious if you think it can make it down the stairs in its current form? Also a stair-lift robot that can interface with other robots would be amazing. Retrieval / delivery robots on each floor plus the stair lift robot to take a mass from one level to another. What an awesome home-automation system you'll have soon!
I was thinking you could mount a rail To the wall just have it extended out and enter so and have the robot be able to connect to that and drive up the rail… who knows if that would work though. And in theory that should be able to make it down the stairs it just goes in reverse
a couple rails with a section of teeth in the middle would make it easier for a small robot to quickly climb the stairs. depending on size you could get it to corner on the rail and even a weak, slow climb would still probably be faster than all the stop and go with this bot. this robot is amazing in its own way and if it was only a step or two it would be fine but 7 min is a while and then you need a good bit of sensors to keep it from just driving off the edge.
Not bad for a first step... I'll see myself out now. In all seriousness though, it reminds me of the way a baby climbs stairs. Functional, effective, but very slow. Very interested to see what else comes out.
How about a hopping / pogo stick robot that can hop up the steps? Would need some kind of active damping on the beer carrying arm though. Sounds right up your alley with some reaction wheals and or gyro's for stability and inducing forward motion and rotation etc
Wouldn't you simply drink the beer before climbing the stairs? And what is so important at the top of the stairs anyway? Tell her to come down, you're too busy watching the cricket
Great video! I had a thought though, and I'm not sure if I'm missing something (in which case, please correct me), but if you have the moving mass that can change where it balances, why couldn't it be just two segments? Like, it puts one segment up one step, shifts weight onto that one, lifts the back segment up, transfers weight onto that one, etc.
Always enjoy seeing your solution to hese problems. Adding a payload area seems like it might get dicey. You're already fighting balance issues. Seems like figuring out additional weight distribution could be a challenge. Thanks for sharing!
Thank you for your video, as I also need to make a 'scooter' that can go up stairs, and I am thinking of using a segway type device that has large diameter wheels and you can shift your weight forward. It needs to go faster than you can do it yourself with your legs or it won't be useful....It would be great if you could figure this out. The track system might work if it has large diameter more like a wheel. Cheers, Jack btw, a simpler method is to fire a hooked cable to the top of the stairs and just winch yourself up, doesn't need anything but a single winch and some wheels. Can go back down too. And very quickly too if you don't mind some bouncing.
interesting project well for starters how about acceleromter(?) in the middle so it can calculate tip forwards and backwards for balance, simple switches in front on both side for step placement.
For a vacuum/sweeper, this kind of mechanism makes some amount of sense as it sweeps each step before progressing. But for anything else that needs continual progress up a flight of stairs, tis is insanely inefficient. Unless legged robots become more prominent where they can actually _step_ up the steps, any other form of robot will have to be bound to a rail system to retain any amount of movement efficiency; that's just the reality of robotics at the current moment. Sure there may be some atypical wheel and linkage designs that makes traversing stairs more possible, but you also have to consider what sacrifices those atypical designs are making when it comes to typical movement. Honestly the best of both worlds, stepping efficiency and rolling efficiency, might just be a Spot on skates, but then you're also pretty deep into hardware costs just so it can occasionally step; though this would be good for terrains where wheels don't make much sense either.
All those are fair points. And James probably thought of them, as did many people for many years. Boston Dynamics Spot can handle stairs. But hey, if stair lift is what you need for your robotic butler to get you a beer, thats a small price to pay i think.(btw, if you want "typical" movement, human movement, then you have to go with legs)
@@greenanubis Did you comprehend any of the comment? They already stated legged robots are what's efficient for stairs, why be utterly redundant in your statements? They also stated the fact that a non-legged robot would optimally use a rail system to traverse stairs efficiency; again, comprehension issues? Your argument of typical movement also has no basis in anything, they had stated that _atypical wheels and linkages,_ such as tracks or treads, sacrifice efficiency when it comes to typical movement just to traverse large vertical disparities, such as when you have multiple secondary wheels around a primary pivot to climb steps via rotation of the secondary wheels, you'll be sacrificing rolling efficiency due to much smaller wheels by comparison to a singular wheel that fits the same radius from pivot center to the secondary wheel's circumference, thus your 'typical movement = human movement = need for legs' argument is entirely baseless and counters absolutely nothing they had said; again, did you not comprehend a single thing? Where did this argument even come from? You do realize typical movement for a wheel is rolling, yes? Are you high or just a moron? Stair lifts aren't the only rails stairs have, btw, not that any robotic platform would interface with a typical stair lift anyways but rather use its own rail with open ends and without other devices on the same rail; again, another moronic statement. Maybe rather than be an illiterate moron, you go educate yourself a bit. As for James thinking about movement efficiency, absolutely not, he saw a robot and made his own lesser version of it, as he typically does. As for other people having thoughts of movement efficiency, obviously it's not a primary topic, nor a topic widely discussed, if even a topic of consideration; reference atypical wheel and linkage designs that sacrifice efficiency in their primary mode of movement just to climb stairs, tell me where the movement efficiency is, reference the fact that legged robots might have a more efficient mode of movement on paper but are not efficient in the slightest due to _rotational_ motors being used for multi-hinge legs and gaits, there's reasons why natural joints have limitations in rotation and why muscles are linear devices in vertebrates. Tell me how cock tastes, because you sure are sucking off a lot of people right now.
Make the weight mechanism have 3 stages, when you lift the first wheels the system automatically first has to have the weight on the first stage, when you lift the middle the weight automatically moves to middle, and when you lift the last wheels the system automatically moves the weight to the last stage, this removes two buttons and stream lines the process so that if further autonomy with sensors may be easier.
In engineering this is what we call the "brute force" approach. Normally when somebody says "Just add more actuators!" you know a dumpster fire is in your future.
Love the content. My first thought on stabilization was legs/pylons to extend forward or back (similar to a light crane or boom lift), which would maybe be more complicated but less tipsy... Props - this channel is an inspiration.
I think it only needs to drive the front pair of wheels when the middle pair is at the same level as those front pair. This means you could simplify by having a simple gear or friction drive that takes the drive off the middle pair and supplies it to the front pair when they are at the same level?
What about 3 vertically sliding links with each having a track so when the first link encounter the stair the track will pull it up while the rest will press it to the stair so that it has traction, and once its goes up the next one climb etc.
Interesting concept, but if I want something, I just going down the stairs to get it myself. Now if you were able to get a robo flying drone that can carry a load, that could bring things up fast.
Yes, the back wheels are a bit unnecessary when you have the top weights going back and forth. Although it would be a bit wobbly so you'd have to drive slowly to not tip over on flat ground. And you'd have to use the front wheels to actually drive up the step, because when you're lifting up the front wheels it's basically balancing on the back wheels.
It's would be hard to lift the middle section though, unless each section has four wheels on it - but they would be very close together on the soft carpet.
Rather than sensors for detecting the distance to the next step couldn't you use switches on each side (front left and front right) and let the robot bump into the stair like the early roombas did to detect the stair and then orient itself correctly (straighten out and then move to the correct distance for ascending)? Couldn't you also automate the ascent process rather than having to control it all manually with a remote? It seems like it's a fairly repetitive task that would be easy to set up macros for each of the different movements and their timings
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You could make the weight shift automatically depending on which linear motor you enable? I.e. moves forward before moving rear wheels etc.
Camera bot doing a great job holding the camera!
Got a little seasick at the end, maybe need a bit more damping.
It does a good job, however needs more damping indeed. Switching point of interest instead of accurately following it is what's needed.
And personally I'm used to a signature steady wide open shot with a lot of machinery in the frame. Change is not always good.
A lot of videos today are dynamic and shot from a handheld cam. James style stands apart and that is good IMO.
@@danielf3623 Same, at the end it was a bit too much haha
@@kittguy And another bunch of videos are filmed on a tripod, with wide shots. James' style wasn't special at all, in fact a robot filming him IS a special style he needs. Just needs some tuning, that's all.
@@daftbence Solid point actually, I haven't thought of it this way. 👍
It's a VERY good machine to carry a quite massive load and for keeping it level and stable. But for it carry you a beer while you're feeling lazy... well I think it would be warm by the time it got there lol. You did mention that it was overly complicated, and I agree... for SIMPLE tasks. But it really is the perfect design for what it was based on (cleaning the stairs)
brits drink their beer warm anyway
If I were to do this project, I would cheat and mount a track on the wall that the robot could attach to and drive itself up the wall like one of those stair-lift-chair things.
Or attach and detach itself to an installed winch or crane.
That would only help for a home use that's planned ahead of time like that - not really as robust as a solution as this robot that could go up many different types of stairs.
EDIT 12:32 in the video he has the same idea haha I wrote this comment before finishing the vid
He's English, warm beer is the go.
If anything, there's a risk he'll have to drink his ale cold.
instead of 3d printed part for ads it was more struddy to use only aluminum parts and make a mini fridge as counter mass
That worked so much better than I was anticipating. Excellent results
Brilliant!
As a proof of concept you've created a lift for elderly or handicapped that doesn't need rails and is portable. Truly brilliant!
The new camera rig seems like it's working out great, but with this project, because you've already added the 2kg weight shifting element, why not just use two sets of balancing wheels and a single actuator between them?
Funny - I had the opposite thought - since it's using 6 wheels, why have a shifting mass when you could just add a static mass to the middle section? :P
i think a servo with a stability plate at each set of wheels would assist in this if needed
CAMERABOT is doing a great job man. i think you're the only one i know off on youtube to have that. brilliant
Gotta love the camera work 👍
Besides being educational, your videos are always fun to watch. The music for this one was perfect.
Amazing. I’d love to see an autonomous version of this that can go up and down. But also excited to see the Roomba stairlift!
So very cool, well done James and thanks for what you do for the Robotics community and STEM learning in general.
Onshape is about 3x the prices of FUSION 360. Why would I switch?
Instead of sensor, limit switch for hitting side of the stairs is probably easier to implement.
Maybe some problem though with that fuzzy carpet
@@bluemamba5317 Maybe a limit switch with a bigger bumper?
I'm pretty sure sensors were limit switches when I was learning robotics back in the 80s. There were infra-red sensors too, but there's nothing wrong with an, *ahem* _simple touch sensor_ AKA limit switch. :)
This is what I imagine a stair climbing Dalek would look like. Pretty interesting design though.
not going to lie but I use Onshape and it is pretty good for most applications including 3D printing
What would be super cool is if someone could make like a rail system around a house that bots can attach to and ride around. For the stairs the rail could go up a wall and then across the ceiling out the way.
Love the multiple different types of pullies and different engineering designs in this. On a quick note you should try to use mecanum wheels, they give lots of control when used right and you can go in almost any direction you want!
Could you make the counter weight automatically balance the robot to remove a few steps from the climbing sequence?
Impressive! James does in weeks what industry does in many months and universities take years to accomplish.
🤣 You think a university would only take "years"? 😂😂 An academic would sit on a problem like for his/her/its entire career. And in that time he/she/it would build a medium size research group, obtain squillions in taxpayer funded grants to fund said group, reach full professor relatively early compared to a more esoteric academic colleague and then spend the rest of his/her/its career dining out on his/her/its one pony trick without any of his/her/its sponsors ever really achieving a commercially viable product. Even more sadly he/she/it will successfully supervise higher degrees and they too will follow in his/her/its path at his/her/its institue or some other. And so and so on and so on. 🤣😂🤣
But can you make stairs that climb robots?
Next joke?
Objective achieved. Nice.
Hey Jim, I'm still loving the autonomous camera man 😉
New camera guy is really putting in the work
I gotta say I switched to Onshape about a year and a half ago when I switched to Linux and coming from fusion I gotta say I love it and I love to see them sponsoring you
Yeees! The stair roomba is coming! Thank you!
robot cameraman john is legitimately really good. its a good handcam feel. John has been replaced!
Love the robot camera Is doing a great job
A few weeks ago I was thinking about the same idea, designing a segmented stair climbing robot. Nice to see someone doing it.
You make it look so easy. You must have a ton of experience. Wish I could learn from you in person
Aargh! he always finishes projects that I am working on before I do
Really cool video and what an amazing 3D printers ! Mouth watering...
Excellent project 👍
I love your soundtrack!
Loved the new vid, cam bot is working great! I miss the old 3d print music though.:(
Your robot camera man is still killing it. Good job James, you're the best evil scientist on TH-cam.
Thanks, although opinions are mixed ;-)
i appreicate the background music during the build montage!
It's not the robotics I'm impressed by, it's the time to finish that is amazing.
nice automatism . You can also try triangular wheels (one wheel on each vertices), all three powered by a central sprocket , and the triangle turns and grips . Like a powered climbing stairs cart
Quite the accomplishment James.
Love the dynamic camera!! Also, your content is pretty dope
you are underrated engineer. woow I m bafed
I see you use your camera robot for filming now. Thats pretty awesome that you get something really useful out of your inventions as well from time to time.
In order to automate, can you simply detect the first stair, input the length and height of each tred and then let it run?
Cool video. Looks like you got the robot camera rig working. Nice! Mahalo for sharing! : )
If you can find it have a look at the British Army's "wheelbarrow" from the 1980s. It is an EOD robot that carries tools and can negotiate stairs no problem. It uses tracks and has a hull that slides fore and aft for centre of gravity control. Well done on this design...
Awesome job man. One suggestion. Instead of shifting weight, you can use flywheels. You can control their speed and direction to adjust the angular momentum. I think it will be comparatively simple and compact.
Your builds were already impressive with the BB8 but this is very cool.
Really good explanation of the problem and your solution 👍
At least, I think you can automate the stair climb with 1 sonar sensor on the front:
You still have control of the driving of course. You can drive it up to a step, and hit a button that will start the stair climbing (maybe with the same button to stop the auto-climb so you can take over too).
The program will first make sure it's close enough to the step, maybe even bumping into the step.
It will then raise the front section until the sensor doesn't detect a close object.
It then drives forward a set distance, stopping if the sensor gets too close to the next step (if there is one).
I'm not going to write out the whole thing, but I think you can get the idea for the algo from this. Just one sensor needed! :)
Honestly thought James had hired a camera man for a bit. Then I remembered the last video! Great work James!
Fantastic, thank you!
One of these days we're going to see you make a 3D printed full mech/Gundam suit.
the camera work is pretty spicy in this video, very nice
That's the camera robot?
If the compartment of the battery can move to accommodate for the change of weight in the direction needed, that's a huge win for efficiency.
Now imagine being able to do this with more than one battery separately for even more control and capacity.
I know for a FACT you used your camera bot and damnnnnnnn that lil homie was build by a pro cause it didn’t miss a shot. Love the video have a great day!!
This is an awesome build...
Fantastic as always. I thought that seven minutes to get up the stairs was quite impressive. :)
A few weeks back I thought that your motion camera rig was another amazing project. However, when you use it now, there are parts of the video (like the closing section here) where I have to look away as they make me fill quite ill very quickly -- the mimicking of a drifting hand-held camera with no stabilization is too good! :) But this may be just me.
Bold choice on the new music!
Imagine getting your morning coffee from this.
I would love to see more Robot Dog stuff, I think you can keep pushing it
I keep forgetting you're using the robot camera operator. Awesome.
Hi Jim! Love your creations! The plastic they're made out of remind me of my 90s childhood for some reason. 1:54am in NY here, cheers!
Really a great job. It is not easy to make a robot that can climb such stairs. Now maybe you can use it as a platform, add more automation etc.
Great ! You should add this mass moving system on your useful robot so he can actually lift heavier objects without balancing problems.
Such a cool concept! Well executed too. I'm curious if you think it can make it down the stairs in its current form?
Also a stair-lift robot that can interface with other robots would be amazing. Retrieval / delivery robots on each floor plus the stair lift robot to take a mass from one level to another. What an awesome home-automation system you'll have soon!
I was thinking you could mount a rail To the wall just have it extended out and enter so and have the robot be able to connect to that and drive up the rail… who knows if that would work though. And in theory that should be able to make it down the stairs it just goes in reverse
a couple rails with a section of teeth in the middle would make it easier for a small robot to quickly climb the stairs. depending on size you could get it to corner on the rail and even a weak, slow climb would still probably be faster than all the stop and go with this bot. this robot is amazing in its own way and if it was only a step or two it would be fine but 7 min is a while and then you need a good bit of sensors to keep it from just driving off the edge.
Excelente work... Greetings from colombia.🎉
I love it.... Glad were back to awesome robots..
Not bad for a first step... I'll see myself out now.
In all seriousness though, it reminds me of the way a baby climbs stairs.
Functional, effective, but very slow.
Very interested to see what else comes out.
How about a hopping / pogo stick robot that can hop up the steps?
Would need some kind of active damping on the beer carrying arm though.
Sounds right up your alley with some reaction wheals and or gyro's for stability and inducing forward motion and rotation etc
Wouldn't you simply drink the beer before climbing the stairs? And what is so important at the top of the stairs anyway? Tell her to come down, you're too busy watching the cricket
Great video! I had a thought though, and I'm not sure if I'm missing something (in which case, please correct me), but if you have the moving mass that can change where it balances, why couldn't it be just two segments? Like, it puts one segment up one step, shifts weight onto that one, lifts the back segment up, transfers weight onto that one, etc.
For a "proof of concept" or version 0 it's amazing!
Always enjoy seeing your solution to hese problems. Adding a payload area seems like it might get dicey. You're already fighting balance issues. Seems like figuring out additional weight distribution could be a challenge. Thanks for sharing!
Awsome! Great build!
Bring back the old printing moment music :'( (awsome as always)
enitre video i was thinking of doing this to a rumba, and then you said it.... can't wait for that one... :)
Nicely made as always! I think with mechanical switches tho, you could double the motor use, rather than simply using the main motors one at a time
This is an AMAZING project! Can the robot go downstairs? I think it can, just reverse the steps should work
Thank you for your video, as I also need to make a 'scooter' that can go up stairs, and I am thinking of using a segway type device that has large diameter wheels and you can shift your weight forward. It needs to go faster than you can do it yourself with your legs or it won't be useful....It would be great if you could figure this out. The track system might work if it has large diameter more like a wheel. Cheers, Jack
btw, a simpler method is to fire a hooked cable to the top of the stairs and just winch yourself up, doesn't need anything but a single winch and some wheels. Can go back down too. And very quickly too if you don't mind some bouncing.
this is very cool and i love the solution but i think it needs to go FASTER!!! i hope next episode is a faster version. you make cool stuff 😊
No wonder the daleks just settled on levitation as the easy solution to stairs
interesting project
well for starters how about acceleromter(?) in the middle so it can calculate tip forwards and backwards for balance, simple switches in front on both side for step placement.
I look forward to your post amazing job again. Thanks
For a vacuum/sweeper, this kind of mechanism makes some amount of sense as it sweeps each step before progressing. But for anything else that needs continual progress up a flight of stairs, tis is insanely inefficient. Unless legged robots become more prominent where they can actually _step_ up the steps, any other form of robot will have to be bound to a rail system to retain any amount of movement efficiency; that's just the reality of robotics at the current moment. Sure there may be some atypical wheel and linkage designs that makes traversing stairs more possible, but you also have to consider what sacrifices those atypical designs are making when it comes to typical movement. Honestly the best of both worlds, stepping efficiency and rolling efficiency, might just be a Spot on skates, but then you're also pretty deep into hardware costs just so it can occasionally step; though this would be good for terrains where wheels don't make much sense either.
All those are fair points. And James probably thought of them, as did many people for many years. Boston Dynamics Spot can handle stairs. But hey, if stair lift is what you need for your robotic butler to get you a beer, thats a small price to pay i think.(btw, if you want "typical" movement, human movement, then you have to go with legs)
@@greenanubis Did you comprehend any of the comment? They already stated legged robots are what's efficient for stairs, why be utterly redundant in your statements? They also stated the fact that a non-legged robot would optimally use a rail system to traverse stairs efficiency; again, comprehension issues? Your argument of typical movement also has no basis in anything, they had stated that _atypical wheels and linkages,_ such as tracks or treads, sacrifice efficiency when it comes to typical movement just to traverse large vertical disparities, such as when you have multiple secondary wheels around a primary pivot to climb steps via rotation of the secondary wheels, you'll be sacrificing rolling efficiency due to much smaller wheels by comparison to a singular wheel that fits the same radius from pivot center to the secondary wheel's circumference, thus your 'typical movement = human movement = need for legs' argument is entirely baseless and counters absolutely nothing they had said; again, did you not comprehend a single thing? Where did this argument even come from? You do realize typical movement for a wheel is rolling, yes? Are you high or just a moron? Stair lifts aren't the only rails stairs have, btw, not that any robotic platform would interface with a typical stair lift anyways but rather use its own rail with open ends and without other devices on the same rail; again, another moronic statement. Maybe rather than be an illiterate moron, you go educate yourself a bit.
As for James thinking about movement efficiency, absolutely not, he saw a robot and made his own lesser version of it, as he typically does. As for other people having thoughts of movement efficiency, obviously it's not a primary topic, nor a topic widely discussed, if even a topic of consideration; reference atypical wheel and linkage designs that sacrifice efficiency in their primary mode of movement just to climb stairs, tell me where the movement efficiency is, reference the fact that legged robots might have a more efficient mode of movement on paper but are not efficient in the slightest due to _rotational_ motors being used for multi-hinge legs and gaits, there's reasons why natural joints have limitations in rotation and why muscles are linear devices in vertebrates. Tell me how cock tastes, because you sure are sucking off a lot of people right now.
what if you had a handrail and the robot could attach to the rail and roll up on the rail avoiding the complicated stair climbing all together.
Yes that's what I said
Make the weight mechanism have 3 stages, when you lift the first wheels the system automatically first has to have the weight on the first stage, when you lift the middle the weight automatically moves to middle, and when you lift the last wheels the system automatically moves the weight to the last stage, this removes two buttons and stream lines the process so that if further autonomy with sensors may be easier.
In engineering this is what we call the "brute force" approach. Normally when somebody says "Just add more actuators!" you know a dumpster fire is in your future.
Cool build but guess the beer will not be cold once it arrives 😉 Thanks for sharing 👍🏼
7:10 Why not use the battery pack as a counter weight or mass, instead of adding even more weight/mass?
Love the content.
My first thought on stabilization was legs/pylons to extend forward or back (similar to a light crane or boom lift), which would maybe be more complicated but less tipsy...
Props - this channel is an inspiration.
I wonder if Bambu labs would sponsor you.
Print speed is ridiculous!
smart design !
haha new printing music is great :P
I think it only needs to drive the front pair of wheels when the middle pair is at the same level as those front pair. This means you could simplify by having a simple gear or friction drive that takes the drive off the middle pair and supplies it to the front pair when they are at the same level?
What about 3 vertically sliding links with each having a track so when the first link encounter the stair the track will pull it up while the rest will press it to the stair so that it has traction, and once its goes up the next one climb etc.
Is the axial load of the ball screws entirely held by the spider coupling set screw??
Interesting concept, but if I want something, I just going down the stairs to get it myself. Now if you were able to get a robo flying drone that can carry a load, that could bring things up fast.
Can't you remove the 3rd set of wheels due to the existence of a moving counterbalance weight?
Yes, the back wheels are a bit unnecessary when you have the top weights going back and forth. Although it would be a bit wobbly so you'd have to drive slowly to not tip over on flat ground. And you'd have to use the front wheels to actually drive up the step, because when you're lifting up the front wheels it's basically balancing on the back wheels.
It's would be hard to lift the middle section though, unless each section has four wheels on it - but they would be very close together on the soft carpet.
Rather than sensors for detecting the distance to the next step couldn't you use switches on each side (front left and front right) and let the robot bump into the stair like the early roombas did to detect the stair and then orient itself correctly (straighten out and then move to the correct distance for ascending)?
Couldn't you also automate the ascent process rather than having to control it all manually with a remote? It seems like it's a fairly repetitive task that would be easy to set up macros for each of the different movements and their timings
Cool, but I wonder if you could build something like the wheelchair tank style treads in the Mark Rober video .