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Topic: My new Electronics Channel - Fun With Electronics (Read 1 time) previous topic - next topic

HitRatio

Dec 15, 2018, 09:11 am Last Edit: Dec 15, 2018, 09:15 am by HitRatio
Hi Guys,
I am a 12 year old kid who loves electronics and programming. This is my first post here.

I just started my youtube channel - Fun With Electronics - I am trying to make a Robot Arm as my first project.

Would be very grateful if everyone in this forum can see my videos and let me know if I am doing a good job.

Love Arduino. Thanks everyone.

https://www.youtube.com/channel/UC4CeF_3aUdlMTY3orUAy_vQ

pert

Great work!

One minor suggestion: OSOYOO gave bad advice about how to install the GRBL library. You should never install anything to the Arduino IDE installation folder because it will all be lost when you update to a new version of the Arduino IDE. Instead, you should install to the sketchbook folder (as configured at File > Preferences > Sketchbook location). The Arduino IDE has a very useful feature for installing libraries: Sketch > Include Library > Add .ZIP Library. This will ensure the library is installed correctly. If you prefer, you can also install the library manually to the sketchbook, similar to how you installed it to the Arduino IDE installation folder.

HitRatio

Thank you for your feedback Shannon. May I request you to kindly post this comment in my youtube video so others may read it also. I will also mention it in my next post.

Thanks.

ardy_guy

Thank you for your feedback Shannon.
His name's "pert" not Shannon, which is his (or her?) forum membership level.


ardy_guy

I can't see your arm working with those huge heavy motors out on the ends of the arm segments. I think you need to look at an arm design that keeps those motors closer to the base and uses levers to do the actuation.


HitRatio

Sorry Pert. My first day here. Thanks for your feedback Ardy. I think that is a great idea. Will reconsider the design to move the motors closer to the base.

pert

No worries. I kind of enjoy it when people call me "Shannon". I'll miss it after I hit the Brattain level.

GoForSmoke

Look into linkages and leverage.

Wire is great for pulling, light weight and strong, can pull against weight or spring. Stainless > Steel > Iron > Copper for wire.
2 wires could pull 1 lever, if one lets up the arm swings the other way and wire slack is zero.

You keep the motor(s) near the batteries so the power runs can be thick and short for less loss. If you ride a bicycle, consider how hand brakes and gear shifts apply hand power to cantilevers at wheel rims and hubs?

Find the full length video of Ralph Steiner's Mechanical Principles on Youtube, you might want to capture a copy. Most of that can be done with light materials, see what's inside of a Furby (net search).

1) http://gammon.com.au/blink  <-- tasking Arduino 1-2-3
2) http://gammon.com.au/serial <-- techniques howto
3) http://gammon.com.au/interrupts
Your sketch can sense ongoing process events in time.
Your sketch can make events to control it over time.

Paul_KD7HB

Well done! Remind folks to always turn the power off before adding or removing wires, etc.

Wires and cables are always used where weight or access is a problem. Think of airplanes before electronic and hydraulic control were possible. Cables controlled ALL the moving surfaces. Pulleys are cheap and light weight.

You can even do what cats do with feet. One tendon pulls the toe down and another tendon pulls the toe up. But when BOTH tendons are pulled, the claws extend. That might save the use of an additional servo or solenoid.

Paul

HitRatio

Thanks Paul, Thanks GoForSmoke... The mechanical design will be a challenge. But I have all you wonderful people to help me so things should go well...

Looking forward to the mechanical part.

ChrisTenone

No worries. I kind of enjoy it when people call me "Shannon". I'll miss it after I hit the Brattain level.
Cause then they will call you "Brat".
What, I need to say something else too?

larryd

@HitRatio

Hey, let us know when you start up a Microsoft/Apple like company ;)



No technical PMs.
The last thing you did is where you should start looking.

HitRatio

Hi Guys,
I just uploaded my 3rd episode on my channel - "Fun with Electronics" - Making a Robot Arm.

This video starts the journey of how to make a custom PCB and then later bring it into the Arduino Eco-system.

I hope you guys will subscribe to my channel and we all will build many custom Arduino PCBs in the future.

Thanks.

HitRatio

https://youtu.be/N83nVlQvGQU

HitRatio

Hey LarryD, Thank you. The important thing is that I have fun with electronics... :)

HitRatio

Hi Guys,
I just posted a detailed tutorial to create your own 6 Stepper Motor PCB from scratch. These videos will take you step by step on how to create your own shields for Arduino.

Please comment and Subscribe.

https://www.youtube.com/watch?v=CxjG14y4uNs

Enjoy.

HitRatio

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