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3rd September 2011, 03:18 PM
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#1 |
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diyAudio Moderator
Join Date: Mar 2003
Location: diyAudio Special Operations Center
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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:   Spindle: Dremel 300  Building the base...    Installing the linear guides for the Y-axis...   X and Z axis linear guides...  Zero backlash stepper motor couplings...  NEMA 23 stepper motor mounts...  Laser cut engineering plastic spacers...   Assorted limit switches...  X and Y axis mounted with the spacers...     Making sure the Z-axis is perfectly squared with the X-axis...   3-Axis micro-stepping stepper motor drivers...  The photo-isolated parallel port breakout board...  one of three NEMA 23 sized stepper motors from Pacific Scientific...  pimped and modified pc psu for 12V and 5V supply source...  Ball bearings to prevent leadscrew end-play...  Installing the stepper motors and lead screws...    Laser cut spindle mounts...  Installed the roller bearings with a piece of aluminum as diy bushings...   Installing the limit switches...       Almost there!!!   And my son inspecting the outcome of the project... ;D  
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3rd September 2011, 03:18 PM
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#2 |
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diyAudio Moderator
Join Date: Mar 2003
Location: diyAudio Special Operations Center
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Motor wiring harness...
 Holder for the connectors...  Got some endmills and drill bits from eBay...    Also installed some high-bright LEDs attached on the spindle mounts to illuminate the work piece...    PCB holders and retainers from scrap aluminum...  And time for some PCB Milling!!!       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! |
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12th September 2011, 05:31 PM
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#5 |
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diyAudio Member
Join Date: Aug 2011
Location: Utah
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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
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Ne timeas a facie mulierum ea ignorare |
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12th September 2011, 09:47 PM
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#8 |
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diyAudio Member
Join Date: Apr 2002
Location: New York State USA
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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
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12th September 2011, 09:54 PM
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#9 |
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Audio Junkie
diyAudio Member
Join Date: Sep 2004
Location: MN
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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
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It's not about what you can BUY...It's about what you can BUILD! |
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