Let's Make Robots!

TinHead's blog

Delta Printer WIP

Hi,

Been on this for a while now, thanks to Ossipee and Hoff  and Mogul :/ 

They kept pushing me to build a delta so here is my WIP on it:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Raspberry Pi is not a pc :) And neither does BBB or Olinuxino

Hi all!

OK so this is not a rant or maybe it is but here we go. 

Raspberry PI is not your common PC (and this applies to all little ARM based boards popping up lately).

Try running a fullfleged linux distro on it and it will crawl to a slow moving beast, and by fullfleged Linux distro I do mean all those things like Raspbian, Archlinuxarm etc. These things are just normal distros recompiled for ARM.

Review: The Makerbeam Starter Kit

Hi all,

Last Monday I have been contacted by the people from makerbeam.eu asking if I would be interested in using their starter kit to build a 3D printer or similar machine. As I was actually planning to start working on a small CNC mill for PCB's I agreed instantly :) Makerbeam sent my kit on it's way on the same day, and knowing my intentions they also added bearings and extra long screws to mount them. Thanks makerbeam.eu people :)  

Radu's Big Machine

Hi all,

This should be a something else but since it's not my creation I'll just praise the creator in a blog and if he ever finds time maybe he'll post on his own.

So last weekend Radu, a friend brought this to me:

 

"The Return of The Son of Richard Gear" - quoting Jax ;)

... Well JAX you said it :)

Here is the latest and greatest in 3D printed gears, now with perfect roundness and accuracy.

Gears! Complete gear set for TB-2 

Of Pi's and Linuxes

I finally got my hands on the thing I wanted to get first time a heard of it :D

Been trying to roll my own little custom distro for it from scratch ... unfortuantely cross-compiling stuff has it's challenges and it's going to take a lot. For example getting Python compiled is impossible this way, it's building process relyes on native compiler, so it has to be compiled on the Pi.

So I'm using Archlinuxarm on it now and trying to get the kernel customized ...

More to follow.  

 

Boston and NY here I come!

Hi all,

This is to let you know I'll be visiting Boston and NY between 28 July - 5 or 6 August. I'll spend the week in Boston at a training with the company I work for, which will probably leave me very little time to visit much of Boston, but it ends on Friday and I'll try spending the weekend visiting NY. 

So if anyone has suggestions for good and cheap places to stay in NY (I will not be alone but with 4 coworkers) and maybe want's to meet for a beer let me know. 

Cheers!

Campus Party - Milenio 2011

Hi all,

It looks like Spain misses us, they doing yet another Campus Party with free invitations. So I'll post my tank and the crab and hopefully some of you will do the same and we'll have a little LMR reunion :D

If you were ther before you should get an emil in spanish, if not you can subscribe here for an invitation:

http://milenio.campus-party.org/2011/main.html

Cheers and maybe see ya there friends!

What does it take for you to call your creation ready, done?

Hi all,

It seems I never can call anything I'm working on done. I always have to fix this and that, tune this and that ... in the end I'm fixing and tuning it to the bitter end as it happened to Z39 ... it never ends I'm never really happy with it, the same as with the CNC machine. Finally I just start working on something else leaving the old project gathering dust ... just to discover it after a while and start all over again :)

So how do you guys go about this? How do you arties handle this? How about you techies? 

Review: Solarbotics Zendulum

Intro:

It's time to find a sunny spot in the house, put on some chillout background music, light some aromatic candles, all in all prepare to get in a Zen mood :)

Ready? Good. The last missing piece is the Solarbotics Zendulum to complete the scene:

Review: Guibot's Motoruino

Intro

The Motoruino is an Arduino based robot brain, which includes everything needed for a small robot onboard.

Z-39 was "Yet Another Tracked Bot" - Build blog

 


Hi LMR,

Now that the Phoenix CNC works good enough to do some real work, I have finally started working on a new project: 

YATB - Yet Another Traked Bot - at least until I find a better name for it

I will try to document it's building saga here, before creating a robot page for it. 

So without further intro:

Phase one: Tracks

First I have done some Blender designing, I came to design something roghly as below:

Phoenix Rising

Hi all!

A new year, a new reboot.

Valkyrie is officially dead, buried, gone ... RIP Valkyrie. 

She did her job, teaching me a lot of stuff about mechanics, electronics, programming and building stuff in general. 

Probably the most important thing I learned is to take your time doing stuff, because finishing fast does not always mean you finished good, sometimes you end up with a really crappy part and all work was in vane. Starting with  2011 I'll take the time to do it right, no mater how long it takes, if the end result counts.  

V4 Stepper Driver

Hi LMR!

It's been a loooong time into WIP but it is finally there:

v4_drv

 

 

 

 

 

 

 

 

 

 

(Yeah scaling is bad, see the link down below for the Eagle files)

So what is in the picture above? I'll answer that for ya ...

Reboot

Hi all,

In the last three weeks, and especially the last week, I've been working on V3, trying to finish it.

Oh well ... it will not happen because:

- it is a very large project and it consists of a very large number of parts

- everything that could have gone wrong ... got wrong

- I'm running out of time

- cutting parts using the V2 in an apartment is just crazy, I had enough of the noise and more so of the dust

- killed all my endmills

- almost destroyed the V2 forcing it to go faster

V3 - Borg it is!

Hi all!

Here is quick rendering on how V3 will lokk like :) Almost finished the design, still little things to take care of, I can start cutting soon.

 

Has a Borg feeling to it :D 

 


Update - Z-axis

Or how to get from this:

 

 

 

 

 

 

 

 

PCB milling

Hi,

I finally got an usable result trying to mill PCB with my machine. 

I tested using this Eagle PCB layout:

vk3_driver_notiny.png

 

 

 

 

 

 

 

 

 

I then generated g-code out of it using the pcb-gcode eagle plugin with the settings below:

pcb-gcode1.png

 

 

 

 

Stepper Driver V3 (draft)

Hi all,

I've been working on the driver for the next CNC, V3.

This one should be able to drive bigger motors up to about 2.5 Amps per coil, while providing current limiting.

It's features shold be the following:

- wave, full and halfstepping selectable in software

- I2C and step/dir/enable interface available on board

- home sensors connectors

Below is an iamge of the PCB I layed out:

vk3_driver.png

 

 

 

 

 

The Valkyrie projects blog

Hi all,

If no one has anything against it, I will use this blog to post projects done with the Valkyrie.

To start with, here is the design flow I found to work well for doing stuff with the Valkyrie. Actually there are two flows, one for PCB making and another for cutting, milling etc. Note that I'm using Linux to do all my stuff, for Windows I have no clue which software to use. 

1. PCB's

a. The PCB is designed with Eagle which can be found here: http://www.cadsoft.de/

Timers and ... stuff

Hi all!

Been pretty busy lately digging in the big black timer.pngmystery box called Timer  on those nifty AVR controllers.

I think I finally have a clue how they work, and more then that, how they can be put to good uses. 

One application I'm going to do now that I have a clue, is to (try to) do microstepping. Yeah I blabbered about that other times too.

Note to myself

void begin_note(void) {

printf ("Always use the same damn pinout when having multiple motor controllers ... youuuu IDIOT !!/n");

printf("Or you'll just waist a lot of time scratching your damn TinHead!!/n");

printf("At least comment your lousy code ... wannabe programmer you ..../n");

 }

 

The Valkyrie

Hi all!

So the Beast is dead, buried, gone .... I actually intended to keep it as it was but hey I needed the parts :)

The new machine (Valkyrie) is basically completed and since the keyword for this one is ADJUSTABLE I still have to adjust things :D

Will start soon a new robot page for it ... stay tuned.. 

First Cut

Here is a quick preview:

first cutFirst cut yey :D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

And a closeup:

 p1050868.jpg

The Beast II - Evolution

Hi all,

 In case anyone wondered what happened with that dude with his wooden CNC machine, well I'm still kicking :)

I have finally reached a milestone with this guy, software seems fine, motors turn, everything is mounted back in it's place.

I have modified the Y axis to acomodate the Z axis, reprogrammed the motor controllers many times over and over, added radiators, killed and revived the arduino software .... etc, etc, ....

 And finally it came to this:

 

Yet another L298 based motor controller

Hi all,

motor controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 This came out as a sub project related to my DIY CNC machine "the Beast"  because the outputs of the Arduino would not suffice to control the motors. So I chose to use I2C for this purpose and designed my own little guy.

Project: The Beast (DIY CNC machine project)

Hi all,

Meet the Beast!

The Beast

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 (eh please ignore the junk around it)

 

Hello LMR

Hi all,

 I have finally decided to join LMR after about 6 months of watching and learning from you guys. 

 First of all I'd like to say Hi Fritsl, you've done a great job bringing all those people toghether by creating such a community. I wish I had this idea before you:D

I would also like  to say Hello to Chris the Carpenter, OddBot, Rik,BOA, TheCowGod you guys rock.

And least but not last Hello to the rest of people of LMR.

 

Ok enough hellos, back to work.