Recent Posts

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21
Robot Videos / Re: Wall Art Printing Drone
« Last post by Julian D. Powell on October 27, 2019, 06:38:44 AM »
I wonder if it can work on any kind of vertical surface?
22
Robot Videos / Re: Wall Art Printing Drone
« Last post by roineust on October 26, 2019, 10:26:25 AM »
Thanks!
23
Robot Videos / Re: Wall Art Printing Drone
« Last post by Julian D. Powell on October 26, 2019, 06:44:19 AM »
Nice! Really awesome
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Robot Videos / Wall Art Printing Drone
« Last post by roineust on October 17, 2019, 06:41:04 AM »
Please look at the video of a wall art printing drone that i have built:

https://www.youtube.com/watch?v=Hj9UDmWpyks&t=3s]https://www.youtube.com/watch?v=Hj9UDmWpyks&t=3s

Also, here is the printing-driving module of the drone, at work on a horizontal surface:

https://www.youtube.com/watch?v=sJ8g01swOR4&t=3s]https://www.youtube.com/watch?v=sJ8g01swOR4&t=3s

https://www.youtube.com/watch?v=w7mBPC7YXgc&t=3s]https://www.youtube.com/watch?v=w7mBPC7YXgc&t=3s
25
Electronics / Re: Current Draw of A Voltage Regulator
« Last post by pragash on October 12, 2019, 08:10:46 AM »
hi, dunk,
good explanation. how if it is a switching regulator?
26
Mechanics and Construction / "Motors that can do overkill"
« Last post by Bill. on September 24, 2019, 09:27:50 AM »
Hi,

On this page:
https://www.societyofrobots.com/robot_tutorial.shtml

It says:
Quote
"get motors that can do overkill"

My first project will be ...

small 2 wheeled, differential drive, robot car
a third wheel (ball caster) for balance

Controlled by a Raspberry Pi and a RoboClaw

3" diameter wheels

My approach to pick an RPM was to walk 15 feet at a speed that I thought was OK for the car.

That took 7 seconds and about 19 revolutions of the wheel.

That equates to about 163 RPM.

My thought was to pick one of the micro-gear motors at ServoCity or Pololu.

Question: does "do overkill" mean I should pick a greater RPM like 220 or should I stick with the 163-ish range and pick a motor with more torque (hmm, but that could lead to a larger battery and more weight).

Thanks,
Bill
27
Friend has this and it seems to power up but no controller or software. is that stuff hard to come by? googling seems confusing and I am over my head. Thanks in advance...
28
Misc / $10 Grab Bags!
« Last post by ServoCity on September 20, 2019, 08:40:32 AM »
The chance for a steal of a deal! We're clearing out some of our inventory at a massive discount. Every bag is at least a minimum of a $40 value for a bargain of only $10! Each Grab Bag is completely unique and random (while supplies last)!

Below are just a few of the many items your bag could contain.

    Receivers
    Servo Wiring
    Servo Gears
    Tubing
    Shafting
    Servo Horns
    Connectors
    Heat Shrink
    And more!

Actobotics Grab Bag https://www.servocity.com/actobotics-grab-bag
Miscellaneous Grab Bag https://www.servocity.com/miscellaneous-grab-bag
29
Software / Re: Autonomous robot's navigation
« Last post by EDV on September 06, 2019, 02:49:16 AM »
As I said on the other forum you also posted this: You should go for finding YouTube and Netflix that the user might like. Broadcast/Cable TV is dead (it just doesn't know it yet.)

Unfortunately but now we can't get reach such big companies (it's not so easy to get the decision makers there).
30
Software / Re: Autonomous robot's navigation
« Last post by EDV on September 06, 2019, 02:47:15 AM »
I've prepared InvariMatch presentation:

[youtube]Gp-0CtAMdRo[/youtube]

I'm sorry for my English in this presentation I was try my best :)

It's hard to believe that all this stuff has grown up from robot navigation (there is the same Associative Video Memory algorithm that is used for matching of video content).
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