Yes! Thank you for announcing the next DroneBot episode about rotary encoders, that's exactly what I need where I am on my own robot build! And thanks for your excellent CZcams channels!
This is exactly what I need, for years I've been trying to build a base for my robot, but couldn't figure out what motors I needed to carry the payload, now with the tools he recommended I can do it!
Bill, awesome as usual. I love the attention to detail and the effort you put into everything - from the quality of graphics/illustrations to continually changing camera positions to keep things lively. One point I’d like to make - relying upon independent bearings/axle for the wheels vs using the motors bearing/axle (mounting the wheels on them directly) will make your chassis much more versatile and capable. True for any car, buggy etc. Of course you would have to rely upon some kind of belt, chain or shaft drive - which will add to cost/complexity. But the result will be more long lasting and reliable.
Bill, I have always thought of Canada as a very progressive country.. But your lack of circles has me rethinking this!! I am glad how ever you were able to overcome and adapt to the lack you found. Good video on motors! I was a "car guy" in my youth and I know about gearing and it's importance (trannies and rear ends) But I would never have thought about the wheels so I am geared up (as we say) to hear your next bot video.. and as usual can't wait for saturday to see the video on encoders.. I am going to build that other kit robot you built with my grandson this summer when he comes to visit me.. But I would like to build a handy dandy robot of my own just to prove I am not to old to learn something new.. Although my coding is weak my mechanical mind is still somewhat attached and while it still lives... well you know what I mean... Carry on my friend thumbs up and thanks for the share.
Well it's an election year so perhaps we can make our lack of circles an issue - whoever promises to provide circles for everyone in Canada will get my vote! The robot kit wil make a great project with your grandson. I can relate to the "mind thing", thats why I'm building this now while I'm still able to. I'm turning 60 this year but I think I still have a few good years left in me (I hope)!
@@Dronebotworkshop Bill you will have many years left to enlighten us all because this is what you do.. now if I was still able to build or work on cars I could teach it for many many years to come ( I am 67 here in 2 months) I just started to tech myself electronics about 4 months ago.. Carry on my brother.. and I will see if we just can back some circle politicians there in the great white north..
@DroneBot Workshop Bill - What would be the pros and cons of mounting the 2 motors in a "diagonal" configuration. ie. One motor on each corner front/back. That way the robot could be "less wide". Great series... thanks....
@ 16:25 RE: Upping the RPM + Upping the Torque. I believe these are opposing factors. If you want more torque out of same size motor, RPM output will need to be lowered via internal gears. If you want more of both, you will need a bigger size motor.
Thank you for another great video. My kids and I have been working on our own robot for a while now and I've learned a lot from this channel. We are using stepper motors for the sake of precision instead of using rotary encoders. Would steppers have any advantages/disadvantages over using the gear motors and rotary encoders? It was great to hear you talk about de-coupling the motors from the wheels with beveled gears because that's what I have done. Thank you also for mentioning the wheels, I hadn't considered the weight on the actual wheels. With the motors and the battery Rover is already getting heavy and we haven't built his arm yet.
Actually steppers have a lot of advantages, especially their ability to move with a lot of precision. The main disadvantage woudl be cost and current consumption - as you may have seen in my video on controlling DC gearmotors my cheap motors have no problem moving a 10 Kg (22 lb) load, they might even handle a load twice this size. But otherwise steppers are great. I would love to learn more about the robot you are building with your children, sounds like a wonderful family project!
I really knew very little when I started and I chose stepper motors for the precision because we eventually want to have Rover navigate around the house and I was thinking about set routines to get from one place to another. Now that I have learned more about sensors and navigation (especially your video on the pxy camera) I think I could use this to have him recognise certain landmarks around the house.You're definitely right about the current consumption, that caused some issues and I have now upgraded from the A4988 to the DRV8825 to allow for more current. The wheels were turning when he was on a stand, but not powerfully enough to move him. I should be able to reassemble and test this in the next day or two. We went with a 6 wheeled rocker bogie type design so he will be able to get up and down stairs (if I get the power requirements sorted). It's made from 35mm PVC pipe at the moment and uses an Arduino Mega, this should let us control movement, an arm and eventually a webcam, microphone, speaker and of course a nerf gun attachment.
hi . i am making a robot with motor connected to the wheels through bevel gears of 1:1 ratio what are the things i need to keep in mind while using this setup and are there any problems if we use 1:1 ratio.?
I have been working on my own linear actuator using a 37D 12 volt bldc motor with a 64 bit encoder built into it. I can control them with IBT-4's, and can easily drive them using just about any MCU or SBC that is Arduino IDE compatible and has serial TX/RX out pins. The end goal is to make a hinged joint actuator to be used as an armature; built to hold a heavy weight using 3D printed and common construction parts, such as 2020 v or t-slot extrusions. I want to get one going as a arm, and then build 2 to work together as legs. My desire is to create a more biomimetics dog robot with legs that are more anatomically correct in their function, but an overall simple and practical design that's easy to reproduce.
Great video im following you since a wile and i like the way you explain things. I have one question about how do you atach thr bearing yo the Shaft to support the weight of the robot instead the motor, because i have a robot made this way AND i want toda change it. Thank you again and keep going!!
Hi David - The bearings I used (which are detailed in the article) are beveled - they for a 1/4 inch shaft and they have a 1/2 inch outside diameter. The Actobotics channeling has 1/2 inch holes, so the bearings just pop in and are held in place by the bevel.
DroneBot Workshop Does the ‘beveled’ mean ‘flanged’? If not, could you tell me where to buy? I couldn’t find one anywhere. Thanks for your brilliant lecture series!
I thought that every acrylic square had a circle inside it? Just stroke it firmly with a suitable band or hand saw. That's probably why Plexiglass circles are relatively rare.
I was thinking of cutting it myself but I have some doubts about my ability to do it without it ending up looking like more of an egg than a circle! Although I DID build the workshop entirely myself I still think my mechanical skills are lacking - my strengths are more with electronics and programming. So I'm trying to build the chassis using as many "off the shelf" components as possible.
5201 Series, 53:1 Ratio, 105 RPM Spur Gear Motor w/Encoder: Speed (No Load)* 105 RPM Torque (Stall)* 720 oz-in In 16:00 , your calculated RPM is 188.07 RPM. So why did you choose this motor ?
Because in the video I specified 1 meter per second as the top speed but I actually should have used 0.5 meters per second, which is the speed I wanted DB1 to max out at. I just randomly chose the 1 meter value when I filmed the video. The 5201 series also has one that is twice the speed which couldhave done the job at 1 meter per second.
Considering how difficult it was to get a acrylic circle I think Argon Ion thrusters might be even harder to find. And Scott makes a good point, I'm quite fond of having air in my workshop. Maybe I'll consider it for DB2.
I would bet one or more of your viewers have CNC, 3D printers, or Laser machines that would have sent you a disk. You provide so much to us for free. You should reach out to your viewers.
Yes! Thank you for announcing the next DroneBot episode about rotary encoders, that's exactly what I need where I am on my own robot build! And thanks for your excellent CZcams channels!
Can't wait for that encoder episode :P That's gonna be useful for me!
Excellent work, Bill!
DB1 is taking shape nicely! Really enjoying this series Bill along with the Saturday videos. Great work as ever. Thanks.
This is exactly what I need, for years I've been trying to build a base for my robot, but couldn't figure out what motors I needed to carry the payload, now with the tools he recommended I can do it!
I don't know why there are people dislike this valuable information, I really appreciate your work and the high level of education that you have.
i have been watching your vidoes from about 8 months. one thing i can say is " I'm not wasting my time". your videos are very helpful for me.
Bill, awesome as usual. I love the attention to detail and the effort you put into everything - from the quality of graphics/illustrations to continually changing camera positions to keep things lively. One point I’d like to make - relying upon independent bearings/axle for the wheels vs using the motors bearing/axle (mounting the wheels on them directly) will make your chassis much more versatile and capable. True for any car, buggy etc. Of course you would have to rely upon some kind of belt, chain or shaft drive - which will add to cost/complexity. But the result will be more long lasting and reliable.
Fantastic as usual! Keep up the great work.
Great teacher,Thank you.
Thank you for this video on motors. I've forgotten much on motor selection.
Awesome. Very informative video. Thanks
The best ever tutorial to select motor for a robotics project!
Wow, seriously these videos are fantastic. Thanks!
That's very nice of you to say, thank you!
damn that's the most perfect 'making things move' tutorial I've seen. You've made it really simple!. THANK YOU!!!!!!
Thank you, I'm glad you enjoyed it!
Thank you, sir. The video was so amazing and very helpful.
Thanks again teacher. Great channel.
Please continue this series
I do really follow you here in Puerto Rico, in the Caribbean sea. Your's is a very excellent example to follow.
Excellent 👍👍👍
Bill, I have always thought of Canada as a very progressive country.. But your lack of circles has me rethinking this!! I am glad how ever you were able to overcome and adapt to the lack you found. Good video on motors! I was a "car guy" in my youth and I know about gearing and it's importance (trannies and rear ends) But I would never have thought about the wheels so I am geared up (as we say) to hear your next bot video.. and as usual can't wait for saturday to see the video on encoders.. I am going to build that other kit robot you built with my grandson this summer when he comes to visit me.. But I would like to build a handy dandy robot of my own just to prove I am not to old to learn something new.. Although my coding is weak my mechanical mind is still somewhat attached and while it still lives... well you know what I mean... Carry on my friend thumbs up and thanks for the share.
Well it's an election year so perhaps we can make our lack of circles an issue - whoever promises to provide circles for everyone in Canada will get my vote!
The robot kit wil make a great project with your grandson. I can relate to the "mind thing", thats why I'm building this now while I'm still able to. I'm turning 60 this year but I think I still have a few good years left in me (I hope)!
@@Dronebotworkshop Bill you will have many years left to enlighten us all because this is what you do.. now if I was still able to build or work on cars I could teach it for many many years to come ( I am 67 here in 2 months) I just started to tech myself electronics about 4 months ago.. Carry on my brother.. and I will see if we just can back some circle politicians there in the great white north..
@DroneBot Workshop Bill - What would be the pros and cons of mounting the 2 motors in a "diagonal" configuration. ie. One motor on each corner front/back. That way the robot could be "less wide". Great series... thanks....
First to watching, as always, v good explained
In Latin America those things are very expensive to get, even build a simple proyect,
I got a lot of ideas see your projects
Thanks
@ 16:25 RE: Upping the RPM + Upping the Torque. I believe these are opposing factors. If you want more torque out of same size motor, RPM output will need to be lowered via internal gears. If you want more of both, you will need a bigger size motor.
Thank you for another great video. My kids and I have been working on our own robot for a while now and I've learned a lot from this channel. We are using stepper motors for the sake of precision instead of using rotary encoders. Would steppers have any advantages/disadvantages over using the gear motors and rotary encoders?
It was great to hear you talk about de-coupling the motors from the wheels with beveled gears because that's what I have done.
Thank you also for mentioning the wheels, I hadn't considered the weight on the actual wheels. With the motors and the battery Rover is already getting heavy and we haven't built his arm yet.
Actually steppers have a lot of advantages, especially their ability to move with a lot of precision. The main disadvantage woudl be cost and current consumption - as you may have seen in my video on controlling DC gearmotors my cheap motors have no problem moving a 10 Kg (22 lb) load, they might even handle a load twice this size. But otherwise steppers are great.
I would love to learn more about the robot you are building with your children, sounds like a wonderful family project!
I really knew very little when I started and I chose stepper motors for the precision because we eventually want to have Rover navigate around the house and I was thinking about set routines to get from one place to another. Now that I have learned more about sensors and navigation (especially your video on the pxy camera) I think I could use this to have him recognise certain landmarks around the house.You're definitely right about the current consumption, that caused some issues and I have now upgraded from the A4988 to the DRV8825 to allow for more current. The wheels were turning when he was on a stand, but not powerfully enough to move him. I should be able to reassemble and test this in the next day or two.
We went with a 6 wheeled rocker bogie type design so he will be able to get up and down stairs (if I get the power requirements sorted). It's made from 35mm PVC pipe at the moment and uses an Arduino Mega, this should let us control movement, an arm and eventually a webcam, microphone, speaker and of course a nerf gun attachment.
@@orionthegsp How is the progress, it would be awesome if you upload a video of your progress
Your Mastercraft tools scream Canadian 😂 great videos
Proudly Canadian, and I love to get things at CT when they are on sale (which is pretty well every week).
Best
Could the actobot channel be used for 3d printer looks perfect for it as I am putting a 3d printer on my robot project
👏👏👏
hi .
i am making a robot with motor connected to the wheels through bevel gears of 1:1 ratio
what are the things i need to keep in mind while using this setup and are there any problems if we use 1:1 ratio.?
I have been working on my own linear actuator using a 37D 12 volt bldc motor with a 64 bit encoder built into it. I can control them with IBT-4's, and can easily drive them using just about any MCU or SBC that is Arduino IDE compatible and has serial TX/RX out pins. The end goal is to make a hinged joint actuator to be used as an armature; built to hold a heavy weight using 3D printed and common construction parts, such as 2020 v or t-slot extrusions. I want to get one going as a arm, and then build 2 to work together as legs. My desire is to create a more biomimetics dog robot with legs that are more anatomically correct in their function, but an overall simple and practical design that's easy to reproduce.
Great video im following you since a wile and i like the way you explain things. I have one question about how do you atach thr bearing yo the Shaft to support the weight of the robot instead the motor, because i have a robot made this way AND i want toda change it. Thank you again and keep going!!
Hi David - The bearings I used (which are detailed in the article) are beveled - they for a 1/4 inch shaft and they have a 1/2 inch outside diameter. The Actobotics channeling has 1/2 inch holes, so the bearings just pop in and are held in place by the bevel.
@@Dronebotworkshop thank you so much for your answer. I'll gonna try with bearings. Great channel you have!!
DroneBot Workshop Does the ‘beveled’ mean ‘flanged’? If not, could you tell me where to buy? I couldn’t find one anywhere. Thanks for your brilliant lecture series!
Try Tap Plastics. A 10" disk of 0.118 is $10 US. Plus postage. 0.236" is $14.70. I don't know if you need exactly 3/16".
I thought that every acrylic square had a circle inside it? Just stroke it firmly with a suitable band or hand saw. That's probably why Plexiglass circles are relatively rare.
I was thinking of cutting it myself but I have some doubts about my ability to do it without it ending up looking like more of an egg than a circle! Although I DID build the workshop entirely myself I still think my mechanical skills are lacking - my strengths are more with electronics and programming. So I'm trying to build the chassis using as many "off the shelf" components as possible.
Circle is a geometric figure. What you bought is a disc, platter, or a round base/platform.
but how do you source a motor? where can you go and say i need a motor with these specifications?
multiple layers of music record albums might substitute for that disk.
Can't help myself got to say it. A 45RPM vinyl record would make a good circle. Even glue two together, $1 Ea. Better than spending $50
5201 Series, 53:1 Ratio, 105 RPM Spur Gear Motor w/Encoder:
Speed (No Load)* 105 RPM
Torque (Stall)* 720 oz-in
In 16:00 , your calculated RPM is 188.07 RPM. So why did you choose this motor ?
Because in the video I specified 1 meter per second as the top speed but I actually should have used 0.5 meters per second, which is the speed I wanted DB1 to max out at. I just randomly chose the 1 meter value when I filmed the video. The 5201 series also has one that is twice the speed which couldhave done the job at 1 meter per second.
Where are you from? Canada? Good country :D
Historical trivia: Canadarm (arm on the Space Shuttle) was limited by software to 2 ft per second and 2 degrees per second unloaded (no payload).
where is a calculator?! give us a link
this software didn't consider the friction between the tires and the floor
Shouldn't you be using Argon Ion thrusters to move this robot about?
Ion engines don't do well in a non-vacuum ;)
@@UReasonIt
Then build a vacuum workshop.
Considering how difficult it was to get a acrylic circle I think Argon Ion thrusters might be even harder to find. And Scott makes a good point, I'm quite fond of having air in my workshop. Maybe I'll consider it for DB2.
Guys from south park have known something about the lack of citcles in canada :)
I would bet one or more of your viewers have CNC, 3D printers, or Laser machines that would have sent you a disk. You provide so much to us for free. You should reach out to your viewers.
Too bad you couldn't find an old LP album. IT would have been a black circle. And it would probably have been cheaper.
70th comment 😈
big lezion
Circle's aren't common in Canada? Yet another instance where South Park was lying to us this whole time.
They have a Polar Circle, but only 1% of Canadians live there...
@@michaels3003 I was just teasing Bill; I love this channel really.