[Sticky] Project Corner

@robotbuilder

Sorry to bother you, just thought that you could help me out on future projects if you were and the way you replied about the video I thought you were, again sorry. 

@no-hair

Nothing to be sorry about.  You stated you wished you had the code so I tried to type it from the video.

Videos like that seem pointless. More of "aren't we clever" rather than something to share.

You could figure out the circuit  by stopping the video at intervals but that would also take some time.

I have a project

My niece finally saw Star Wars for the first time, and she thinks R2D2 is "cuite", so I decided to build one for her

Not full size, she's in college, so she doesn't have the room for that sort of thing. It's gotta fit on her desk

It's gonna be about 7inches tall. Work is going sorta well-ish

Every part I design and build seems to require redesigning the part it's connected to, so it's taking longer than I expected

I thought the head was a pain

And then the silver filament seems to be more abrasive than advertised, so it kept clogging the nozzle

I did NOT know that R2's head was silver, and not white. And I saw this movie in 77, and I didn't notice

Anybody else notice that R2's head was silver ?

And the blue things in R2's head ?

I made 3 of them. What a pain. I may just paint the rest

But it's my niece, so I want it to be cool

The head is mostly done, sorta, working on the feet now, which are mostly done

The body...Scares me. It's gonna require 3D talent that I just dont have

I'll do it anyway. It's my niece, I have to make it cool

I thought I could do this in an afternoon, but, realistically, it's gonna take a year

Yea, the wheels still need actual wheels, I got it covered

It's gonna be slow. Best I could find was 70rpm

Hopefully, it won't drive off her desk

I sliced the top of his head off and added the crown thingy

Fits perfectly

It's got 2 laser emitters, but I can't find a lens that shows a pic of princess leia

Best I can do is a star show on the ceiling... Ah well

I have an ankle to build

BTW hi

@spyder Sounds like you will be busy for a while, good thing she doesn't graduate for a few years. Welcome to the forum.

@spyder 

Wow, your niece was very late to the party 🙂

You may be able to save R2 from dropping off the desk (going forwards) by putting an infrared proximity sensor near the front of the body or (better) at the bottom of the front wheel housing. As long as it gets a return signal then there's probably more desk in front of it so you can proceed forward.

When it no longer gets a return, you've probably approached the edge of the desk and it's looking down at the floor (or a chair seat) so you can do R2's panic whistle and back up an inch before stopping.

Your 3d work looks very good ! Don't panic about the body because you may be better off printing it in sections so that you can get back in later to replace tired batteries or make upgrades. Make it with a T slot on one side of the part and a T groove on the other so you can unscrew the base plate and slide the sections off. 

Keep up the good work.

Posted by: @spyder

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Anybody else notice that R2's head was silver ?

Yep I noticed.  I must have watched Star Wars a dozen time by now.

Judging from the bottle of Testors paint on your bench this R2D2 is going to be small.

I’ve been thinking about your Dr Who K9 robot and hoping that you might re-surface and give an update.  Does it follow you around your workplace and bark when someone gets too close to the toolbox?

Tom

Hi my project is getting a RC truck cheap from a charity shop only two motors inside no control board.

I've added the  L298N Connected to ESP32 as the receiver the other ESP32 the Transmitter. 

I've been watching bill video i am using test  programme . thank for this great video.

I was  putting the mac address in the wrong until i watch the video.

 still a work in progress.

i also have skull project working with servos and leds i make a video put it up for you to all see.

thanks to everyone who set me advice

I have a small chest freezer that uses a miniature neon light to indicate power is on. The neon light gets dim over time and finally is not visible after a year. I'd like to replace it with a miniature LED light. Unfortunately, the freezer only seems to use or provide 120 VAC (US) power. So, I imagine I will need a 120VAC to 5V module. This could be built from components, but I do not have experience with doing this. I do have a 3D printer and can design an enclosure for the electronics, and I have the necessary wiring skills to safely do all the connections.

So does anybody know of a reasonably small prebuilt project to connect a single (green) LED to 120VAC that might work for this project?

Thanks

@cnsdave ) One approach is to use a spare (or buy one) wall wart that was used to charge a phone or tablet. Then cannibalize a USB (only need 2.0) cable to wire to the LED. You will probably want a resistor between the 5VDC and the LED anode (longer wire). Now use this calculator to determine the size of the resistor. Select the type of LED, Get the details, fill in 5V and voila.

Thanks for the idea I'll get started shortly.

@thrandell 

Hi there !

Actually, things have happened, and I no longer work at Dave and Busters (thx to cv19), so he's been relegated to the basement, where he has very little room to maneuver, so I've decided to upgrade his... (he's running an old version of ROS which I never knew how to use in the first place and am mostly ignoring) well, he's got 2 computers, an Nvidea Jetson Nano for the brain (both are pub/sub), and Raspberry Pi 4 (used to be a 3b+, which is what I've been trying to upgrade, along with a case and active cooling)

But, again, ton of stuff going on, and not enough hands...

Or eyes, which is my latest problem

Hi @spyder

Well I’m glad that K-9 is alive and kicking!  It’s been so long I can’t remember if your robot had its start as one of Bill’s Real Robot builds.  Did it?

Tom

Posted by: @thrandell

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I can’t remember if your robot had its start as one of Bill’s Real Robot builds.  Did it?

Sort of

I started following with the same parts and all, then he changed directions and I had that idea about the toolbox, and it kinda took off on its own

Then I used the same ideas to start Marvin, and added complications, like arms, head, speech

My brain just keeps going off in random directions. I figured out how to make a resin 3d print glow

Why ? I don't know. It was cool, what can I say ?

https://www.youtube.com/shorts/3UUrRJYHzBQ

Now I gotta find the post where I asked for help with a python script, cuz I think I'm close to almost being completely wrong

or not

I have no idea

I bounce too much

Hard to do with a broken leg, eh?