Let's Make Robots!

Chris the Carpenter's blog

Print your own CtC!

 

While I was at Maker Faire this year, I was booth-neighbors with the great Fredini who was 3d scanning folks the whole weekend. I was one of the luck folks to be scanned!

 

If you want your very own, printable Chris the Carpenter, please visit:

http://www.thingiverse.com/thing:158890

Drive Stepper (4th axis) off of PWM Spindle Control Ouput

Sorry 'bout this one, I am just sorta "thinking aloud" here, feel free to brainstorm with me, there is no real specific question here.

I want to use the 4th axis (horizontal rotary axis) as a lathe on my CNC. The X,Y,Z would operate normally, the only difference would be that they would be grinding away at a chunk of something spinning, as aposed to sheet-goods clamped down to the table.

Help with steering linkages (Not a robot)

Hey guys, I know this is not a robot but I could really use a second set of eyes on this one...

How-to for Thomas

First, lets state our goal:
We want a robot to drive to dark areas while avoiding stuff on the way using various sensors.

As with everything, we break it down into smaller pieces. We test each one individually, record any numbers we get (ADC readings and the like) and then start putting them together. While doing each of these tests individually, it helps us figure out how we are eventually going to put them together.

If someone told me to accomplish the goal above, I would do it just like this:

The Passing of a Loved LMR Member.

Unknown to many LMR members, but here from the beginning, has been Bondo the Dog. The best damn shop dog I have ever had the pleasure of knowing and never further than my ankles as I recorded almost every video posted here at LMR.

Bondo passed today at 5:00 PM. Bondo was my protector, companion, best God Damn shop dog who ever lived, and my best friend. He will be dearly missed. He was my hero.

Rocket Brand Studios/ CtC Update 1.14.12

Well, RBS had a pretty darn-good December and it seems the Tadpoles are exactly what folks have been looking for. I decided to take the move to the new house as an oppertunity to go through the whole shop, tune-up, square-up, shapen and/or lube just about everything I own. I did a good tear-down/rebuild of the CNC and I even built a whole sound-proof room just for milling.

Yup, RBS is growing faster by the day. 2013 is already shaping up to be a good one. 

Booyakasha.

 

 

Rocket Brand Studios/ CtC Update

Hey guys,

It has been a whirlwind around here for quite a while... Ever since Maker, it has been non-stop (and wonderfully exhausting).

I thought I would take a quick moment to record a video and let you guys in on the chaos and upcoming goodness.

Someone Knitted me a QR!

Hey! How cool is this! My friend Wendy knitted me this awesome QR code...   And it works!

 

 

Rocket Brand Studios

One-off Aluminum Bot for Sale

Hey guys, 

I have decided to part with one of my one-off bots. The aluminum bot is currently up for sale. It is complete, fully assembled and pre-programmed with basic autonomous code. Only one of its kind.

 

More info at:

http://rocketbrandstudios.com

Need some help with physics question (non robot)

The ten year old really got me stumped on this one...

 

 

Code for Jorgen

long LengthOfYourPause;

long remTime;

 

void setup()

{

    LengthOfYourPause=5000;  //we will check every 5 seconds    

    remTime=millis();  //remember the current time

}

 

void loop()

{

    //do whatever stuff you normally do in a loop

Started Building the Stand-Alone 3D Printer

 

It has begun. I have started work on the stand-alone 3D printer.

CTC CNC The building has started.

I started welding on the CNC project today. Woo Hoo!

Blog Entries:

Intro: Materials, costs and where I bought stuff

Day one, building Z axis 1.14.12

Rocket Brand Studios New Products 11.19.11

Oh, we gots so much good stuff...

The Nano Undershield is now available as a combo with a Arduino Nano included, the Medium Tank is out and both the Tiny Tank and Medium Tank come in awesome colors!!

Find all this and more at Rocket Brand Studios

 

CTC CNC Step 2 (Ordered Parts)

Yup, I'm gunna do it. I am building a CNC.

Oh, where do I start? --Seriously, where do I start?

Drawing, Steppers, LMR Challenge and it works!

Well how 'bout that, it sorta works. I don't know if I am going to kit this one or just have fun with it, but either way, here it is.

I still need to finish the lift mechanism for the pen, but other than that, 100% solid. Woo Hoo!

 

Arduino Nano UnderShield is Available

 

It is ready! It is ready! The Nano UnderShield is ready!

 

WiiCamera Break Out Fail (Not my fault)

It seems that God is not without a sense of humor...

So, I had a bit of a run there for a while of producing boards which later became coasters. Bound and determined to not let that happen again, I set out to design my WiiCamera break out boards. I carefully layed out the circuit, breadboarded each and every part, and then designed a neat, simple PCB around the breadboard circuit.

Write LMR (Manual Mode)

I was filling some gaps of time and once again, started playing with my little drawing bot. A truly sad little bot that has never really found a calling and receives none of my attention. Never the less, I did manage to build a nifty pen-lifter thing and stick a bluetooth module on. As seen in the video, just regular ol' RC control (except via the tilt of the Android phone) with a Sharpie stuck down the middle.

Please don't expect to be impressed.

Wii Camera BreakOuts

I just finished and sent off some break out boards to support a wiicamera. These boards use the camera after it has been removed from the wiimote and communicate via i2c NOT the standard bluetooth connection of the wiimote. Included on the board is the necessary reset circuit and 25mhz crystal. There are a total of (4) .9" mounting holes to match 2-56 hardware. 2 of these holes match the hole pattern of the servo horn of the "LMR standard" blue servo. Pull-up resistors are also on board for the i2c lines. The board requires and has a 5-pin header for:

Line Follow PCB's

I just got an order of PCB's in and well, I just gotta show them off...

This is a line follow sensor with onboard i/o expander. All 8 sensors can come in (via i2c) in a nice, clean binary byte while still giving you access to each individual sensor if you like. There are 2 mounting positions allowing a forward posistion for curvy line-follow as well as a "closer to the robot" mount for straight-line maze stuff. If nothing else, I am posting to remind folks that boards do not have to be square! Radius your corners, add some details --Don't be afraid of curves, my friends!

How to calculate servo strength && my micro arm

Do what I say, not what I do...

I have told a lot of folks that it is very hard/impossible to build an arm using micro servos. As the arm gets longer and the weight of each servo along the arm is added, the base servos can't keep up. Well, I don't believe myself. Now that I have discovered the wonder of Plastruct, and the lightness thereof, I am going to make a stab at this one.

Processing Andriod Hello World CtC

It is official, I have Processing (or at least the code that comes outta the Processing) running on my HTC Evo magic phone.

As always, much love to all who assisted in the nightmare that was the software install.

Woo Hoo!

 

I Found Some Awesome Joysticks

Just a quick heads-up.

I found quite possibly the most awesome collection of joysticks around. I have yet to get my hands on one, but man --they look good, nice mounting and multi-multi axis. Some of them are X-Y, some are X-Y and button and some are X-Y button AND twist!

Very cool.

They are here at ServoCity.

POV Via Dog

 

If you don't think this is wonderful, you should be slapped.

POV via dog.

 

Sneak Peek --Walter's TX, LCD and Graphics

Sneak Peek --PCB's are on their way...