Let's Make Robots!

pcb

KiCad problems on windows 8

Hi

Don't know if this is the best place to ask about this sort of stuff, but here it is:

Print PCB's on photoresist materials with a blue-ray pickup
Using a
  About a year ago my brother and I engaged on a quixotic project to build from scratch a low-cost PCB printer for photoresist.  Read more

Droid Planning

Firstly Thanks to Oddbot, Pome & the Dagu team for this amazing Robot.

Assembly time was about 16 hours, that included rebuilding the right wrist to get the servo in a position to be able to pour a liquid ;-)

Life with Little Free time!

Right... It has been Way to long since I have had enough time to jump back into this amazing community so this is a quick Catch up on what has happened and what I've learnt in the last 9 months! (Why-Lumi once said if it's not on LMR it hasn't actually happened! & Some Pretty AWESOME Stuff has happened!)

 

The Low down....(More Info will Follow)

Moved to Australia, Got a Crap 60hr a week job driving-NO TIME for ROBOTS :-(

Project board for Picaxe 08 chips
Although nowadays I mostly use Arduino based controllers, I'm still a big fan of Picaxe 08 chips when it comes to simple projects. But I have never seen a really … Read more

My PCB's Are Here!!!

Hello everyone my PCB's are here, they were actually meant to make my robot more tidy as shown here (turn off the sound)

Maxhirez' PICAXE board

9-29-2014: This update just adds the zip file containing the board in its current layout. Send the zip file to your favorite board house and get your own stack of boards. :) I still have a few that I am dispersing.

A week or so ago Max was trying to find a layout for a PICAXE 18 or 20 board with an L293/754410 motor driver. He was hoping for something similar to what sanc04 assembled.

This project aims to create an all-in-one robot control board. Unlike the arduino platforms, this board will contain servo drivers, motor drivers, accelerometer, … Read more
Navigate around, controlled by wireless tilt/accelerometer enabled controller
Using a
I've been building things like this for a while, and actually, LMR was one of the first places that introduced me to hobby robotics. I had already been building … Read more

PCB help (Eagle)

Hi all!

I have made a board for the pic16f690 with some servo connections and some other connections. I think the file is kind of self explanatory. I'm basically just wondering if any of you used to doing PCB's or working in Eagle have any warnings or advice on this board. i am trying to get a clean board and also trying to make it onesided. So all tips appreciated.

Thanks in advance

*Edit 121102

PCB CNC Drill

So this is the basic idea, more so I don't forget but any input/comments always welcome.

Create a mini CNC for drilling PCB's, it would require...

Building an X/Y Table similar to Geir's (sorry can't link, using a Tab). Instead of a pump hook up a 12v motor with a drill bit adapter

Mount the motor so it can move on the Z axis, either on a spring with a servo to push it down, or threaded rod like normal CNC mechanics. Use the handy TIP120 for switching on/off. (2.2K resistor, Diode)

Pcb help

HI,just made my first arduino pcb's.They turned out quite well except um, after 7-10 days now the whole copper side has started going black. (1)Is there a way to prevent it.I hv seen green coating on professional ones.Is there a cheap alternative to elongate their life? (2)Also drilling turned out be a hell of an affair.I dont wanna buy a drill press and working with my hand drill to drill them was a nightmare.Any solutions? Thanks!

My PCB Adventures...

Inspired by Birdmun's adventures in PCB's I decided to try my hand at it. I'm no guru, in fact I'm pretty noobish to this whole thing but I thought I'd share some of the things I've worked out with the help of friendly LMR'ers.

All the equipment I'm using is standard stuff that some folks may already have around:

1. Laser Printer. I had an inkjet which will work using a different method that employs special boards made for UV etching but I             picked up a Brother HL-2240 for $60. It was the cheapest no-frills LP I could find.

Free PCBs looking for a good home

I accidently sent the wrong Gerber files when I ordered some PCBs from http://iteadstudio.com/ so now I’m stuck with 14 boards that I don’t need.
Lesson to be learned : Don’t order PCBs late at night after a 6-pack of beer…

This was my first DipTrace project and I do believe they work. I have not tested the board in detail as I had started another project when they arrived. These are the same boards that I mentioned here
http://letsmakerobots.com/node/30611

First foray into homemade PCBs

**Update at the bottom.

  Alright guys/gals, it has been a coons age since I posted anything even remotely useful of my own. I have managed to break that trend with this 'bitty blog, somewhat. I say somewhat, because, everyone and their brother has posted a how to about DIY PCBs. I will attempt to offer some bit of information that others have not, doubtful. :)

Project Phoenix (ALAN's new look)

hello everybody! it's been a long time since i have updated ALAN, i've been busy for some events, and still am, but i have manage to fix some bugs.

i still haven't added his arms yet, and the battery died (must be a short, RIP), but i will buy a new one when i have time (and money).

so here are the updates:

CAUTION: what you are about to see can and will make you sick, i warned you about it, so prepair a bucket and a mop!

if you want to comment, don't comment here, comment on this link:

Analog Robot Controller
Hello! I made a pcb for Aivot - analog robot controller Parts: 2x 2N3904 1x ferric chloride mix 1x printed circuit Lots of pictures: Printed circuit and piece of … Read more

Arduino Nano on PCB

As I wrote in Chopstick Junior 1.0 (there you can see it in the robot) here comes the part with the Arduino Nano on a PCB.

Why I did this?

Well, it's just a try to use the Arduino Nano for other robots too. This gives me the chance to remove the MC and put it in another robot or just upgrade this one with a new Nano. But the most important is that I can connect all the servos I need directly to the board without any solering or using male-to-female cables.

Free Motor Controllers!

I am currently designing some very budget friendly Motor drivers, and to test the design out, I am giving away 10 free drivers! Each driver is a single or possibly dual (5 single and 5 dual) transistor based design, and cost per board is very, very low. If you would like one of these free driver boards, please post in the forum below. No restrictions! Each board ships with a application note so you know how to use it.

A few specs:

Max Voltage: 30V

Max Amperage: 0.6A

LMR series of PCB's

I think that LMR should have its own series of circuit boards, with the designs open source for all LMR'ians to use. Heres a couple ideas for PCB's:

Wii Camera and Easy PCB Etch How-To

Well, I got sick of having a lappy as a middle-man between my wiimote and my robot (via bluetooth). I decided to remove the camera itself and go with on-board i2c instead of sending BT data back and forth. Now, I have seen a lot of great "adapters" to go from the fine pitch of the wiicamera pins to "standard" pin spacing, but I need not only to adapt the pins, but also a good way to mount the device to the pan and tilt mechanism I have on Walter. I decided to etch a PCB for the task using, I think, the easiest PCB etching process around. Period.

CNC Machine V2 with RepRap Controller

I finally finished my Fireball V90 CNC build.  In May, I got the frame, and I planned to use the motors and electronics I purchased for upgrading the Valkyrie-clone CNC.  So I made some NEMA-17 to NEMA-23 adapter plates from CD-R disks, and got it all up and running.  It's running off 12V for now, with 24V planned in the future.

 

PCB design software (EDA) for Linux users

I am using my Ubuntu laptop more and more often. And today I found myself wanting to throw together a simple schematic for posting on LMR. So I needed to find a CAD program for that. One that works on Linux.

Shouting in the shoutbox is fun and all, but valuable info gets lost. So please everyone, use this thread to post your experiences and recommendations.

So far I discovered in my Ubuntu (10.04) repository:
kicad
geda
eagle

google them for links or downloads. I will post my experiences with them here as I gather them.

Here's the third Diptrace tutorial, this time I go through exporting files and ordering. video More Resources: DiptraceMy Diptrace component libraryPrevious … Read more