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-   -   Abacus Robot: My diy CNC PCB Milling/Drilling Project (http://www.diyaudio.com/forums/equipment-tools/195876-abacus-robot-my-diy-cnc-pcb-milling-drilling-project.html)

JojoD818 3rd September 2011 03:18 PM

Abacus Robot: My diy CNC PCB Milling/Drilling Project
 
Platform: Ubuntu 10.04
CNC Software: EMC2 PCB CNC software
PCB CAD: Eagle PCB CAD
Gcode Translator/Generator: PCB Gcode


Construction Pics...


Spindle Holder design:

http://img.photobucket.com/albums/v7...elHolder-1.jpg


http://img.photobucket.com/albums/v7...melHolder3.jpg


Spindle: Dremel 300

http://img.photobucket.com/albums/v7...C/IMG_1880.jpg


Building the base...

http://img.photobucket.com/albums/v7...C/IMG_1872.jpg


http://img.photobucket.com/albums/v7...C/IMG_1874.jpg


http://img.photobucket.com/albums/v7...C/IMG_1875.jpg


Installing the linear guides for the Y-axis...

http://img.photobucket.com/albums/v7...C/IMG_1877.jpg


http://img.photobucket.com/albums/v7...C/IMG_1878.jpg


X and Z axis linear guides...

http://img.photobucket.com/albums/v7...C/IMG_1982.jpg


Zero backlash stepper motor couplings...

http://img.photobucket.com/albums/v7...C/DSC_2993.jpg


NEMA 23 stepper motor mounts...

http://img.photobucket.com/albums/v7...C/DSC_2995.jpg


Laser cut engineering plastic spacers...

http://img.photobucket.com/albums/v7...C/DSC_2997.jpg


http://img.photobucket.com/albums/v7...C/DSC_3002.jpg


Assorted limit switches...

http://img.photobucket.com/albums/v7...C/DSC_3005.jpg


X and Y axis mounted with the spacers...

http://img.photobucket.com/albums/v7...C/DSC_3009.jpg


http://img.photobucket.com/albums/v7...C/DSC_3008.jpg


http://img.photobucket.com/albums/v7...C/DSC_3006.jpg


http://img.photobucket.com/albums/v7...C/DSC_3007.jpg


Making sure the Z-axis is perfectly squared with the X-axis...

http://img.photobucket.com/albums/v7...C/DSC_3010.jpg


http://img.photobucket.com/albums/v7...C/DSC_3012.jpg


3-Axis micro-stepping stepper motor drivers...

http://img.photobucket.com/albums/v7...C/DSC_3013.jpg


The photo-isolated parallel port breakout board...

http://img.photobucket.com/albums/v7...C/DSC_3019.jpg


one of three NEMA 23 sized stepper motors from Pacific Scientific...

http://img.photobucket.com/albums/v7...C/DSC_3022.jpg


pimped and modified pc psu for 12V and 5V supply source...

http://img.photobucket.com/albums/v7...C/DSC_3024.jpg


Ball bearings to prevent leadscrew end-play...

http://img.photobucket.com/albums/v7...C/DSC_3028.jpg


Installing the stepper motors and lead screws...

http://img.photobucket.com/albums/v7...C/DSC_3030.jpg


http://img.photobucket.com/albums/v7...C/DSC_3031.jpg


http://img.photobucket.com/albums/v7...C/DSC_3033.jpg


Laser cut spindle mounts...

http://img.photobucket.com/albums/v7...C/DSC_3035.jpg


Installed the roller bearings with a piece of aluminum as diy bushings...

http://img.photobucket.com/albums/v7...C/DSC_3036.jpg


http://img.photobucket.com/albums/v7...C/DSC_3037.jpg


Installing the limit switches...

http://img.photobucket.com/albums/v7...C/DSC_3038.jpg


http://img.photobucket.com/albums/v7...C/DSC_3040.jpg


http://img.photobucket.com/albums/v7...C/DSC_3041.jpg


http://img.photobucket.com/albums/v7...C/DSC_3042.jpg


http://img.photobucket.com/albums/v7...C/DSC_3043.jpg


http://img.photobucket.com/albums/v7...C/DSC_3044.jpg



Almost there!!!

http://img.photobucket.com/albums/v7...C/DSC_3045.jpg


http://img.photobucket.com/albums/v7...C/DSC_3046.jpg


And my son inspecting the outcome of the project... ;D

http://img.photobucket.com/albums/v7...C/DSC_3048.jpg


http://img.photobucket.com/albums/v7...C/DSC_3049.jpg

JojoD818 3rd September 2011 03:18 PM

Motor wiring harness...

http://img.photobucket.com/albums/v7...C/DSC_3070.jpg


Holder for the connectors...

http://img.photobucket.com/albums/v7...C/DSC_3074.jpg


Got some endmills and drill bits from eBay...

http://img.photobucket.com/albums/v7...C/DSC_3081.jpg


http://img.photobucket.com/albums/v7...C/DSC_3082.jpg


http://img.photobucket.com/albums/v7...C/DSC_3083.jpg


Also installed some high-bright LEDs attached on the spindle mounts to illuminate the work piece...

http://img.photobucket.com/albums/v7...C/IMG_2303.jpg


http://img.photobucket.com/albums/v7...C/IMG_2304.jpg


http://img.photobucket.com/albums/v7...C/IMG_2306.jpg


PCB holders and retainers from scrap aluminum...

http://img.photobucket.com/albums/v7...C/IMG_2307.jpg



And time for some PCB Milling!!!

http://img.photobucket.com/albums/v7...C/IMG_2178.jpg


http://img.photobucket.com/albums/v7...C/IMG_2179.jpg


http://img.photobucket.com/albums/v7...C/IMG_2180.jpg


http://img.photobucket.com/albums/v7...C/IMG_2181.jpg


http://img.photobucket.com/albums/v7...C/IMG_2182.jpg


http://img.photobucket.com/albums/v7...C/IMG_2185.jpg


Here are some videos, forgive the blurry quality and poor lighting though...

Stepper Motor pre-test: http://www.youtube.com/watch?v=RTJ032-n_U0

Pen Pre-Testing: http://www.youtube.com/watch?v=X8In1...eature=related

Milling video 1: http://www.youtube.com/watch?v=y9kv77lQx7U

Milling video 2: http://www.youtube.com/watch?v=IdoufqYjh_E



Cheers!

JojoD818 7th September 2011 02:56 AM

Does the job real well...

http://img.photobucket.com/albums/v7...C/IMG_2398.jpg

qguy 7th September 2011 03:19 AM

AWESOME !!!

thaumaturge 12th September 2011 05:31 PM

Very nice work. Watch the duty cycle on that dremel. I've toasted one before from over temp. Maybe add an overtemp system shutdown sensor touching the dremel case? LM 61's are cheap.
Just a thought.
Doc

fireworks 12th September 2011 06:04 PM

Very nice !

digits 12th September 2011 06:17 PM

Where did you get those nice rails, I heard McMaster doesn't realy do international shipping anymore.

bear 12th September 2011 09:47 PM

Sweet!

Two things...

Lucite sheet/ acrylic sheet is not dead flat and varies in thickness... fyi.
May not be significant.

It is a good idea to install a collar thingie near the cutter end of the dremel that is hooked to ur vacuum cleaner to get the dust out of the air and away from the work... there are a few different ways to implement it...

Nice job... whose controller did you use??

_-_-bear

Zero Cool 12th September 2011 09:54 PM

Nice job, I have a converted Shibaura Roibot industrial X-Y arm converted that I am alsmot finished with.

Here are some videos of my machine in action running some test programs

overkillaudioinc's Channel - YouTube

JojoD818 13th September 2011 01:56 AM

Quote:

Originally Posted by qguy (Post 2700711)
AWESOME !!!

Thanks man! :)


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