CNC Router : How to make one with DMS help

Information given to me by Jason B at the DMS on how to make a CNC Router.

 

A link to the main Shapoko site: http://www.shapeoko.com/

Where I got the kit: https://www.inventables.com/technologies/desktop-cnc-mill-kits-shapeoko

Controller I’m using: http://www.panucatt.com/product_p/mcnc-3az-328p.htm

General Idea for the spindle(motor drive) that I’m using: http://www.mycncuk.com/forums/diy-project-building/3793-diy-brushless-spindle.html and http://garageshopconfessions.com/?page_id=69

Where I have been getting my bits: http://stores.ebay.com/carbideplus

Software to stream Gcode to the Arduino: http://www.shapeoko.com/wiki/index.php/Grbl_Controller

I researched CNC routers for a good month or so before deciding on the Shapeoko. It’s the cheapest and most upgradable one you can find due to the Makerslide.

I got this board but I burned out a driver on another project and since it was to tall to fit in my enclosure I just said fuck it. I’ll make you a deal on it. hehehe.

Other than a few small differences they work very similar to a 3D printer just running on an arduino Uno or similar with GRBL as opposed to Marlin/Mega. The arduino is rather taxed just running as it does so a computer of some sort has to stream the Gcode. Many people have tried to port the code to the Arduino Mega but it fails miserably.

I did find this site a few days ago that has ported GRBL to anything that runs the ARM M3. Looks interesting but I know nothing about it.

You can also go with Mach3 or EMC2 but then you need a PC with a parallel port and have to have a break out card that costs more than my whole controller.

Ramps and CNC

  1. RAMPS settings for CNC
  2. Hacking your cnc toolchain
  3. PyCAM discussion
  4. Reprap GCode

Rostock Printer

Okay.. so here’s the research on the rostock printer.  I’ve talked with some friends and will be documenting this little journey here.

I will be using a ball joint variant that is here on thingieverse.

https://plus.google.com/photos/102205917688348138845/albums/5794445797670248865

https://www.google.com/search?q=celcon&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Get ball joints here (traxxas part number 5347)     $9.99 at Mike’s Hobby on I35
http://www.royshobby.com/index.php/77-welcome/68-newwelcome

410/1000 Carbon Fiber Rods  $4.99 / rod at Mike’s Hobby on I35

Smooth Rods (Fasekn

Things to print:

Cheapest nema 17 stepper motors I’ve found yet that have been given good peer review by the reprappers.

Electronics.  I found this and so far has been the best deal I have found.

Home Depot:

  • 2’x4’x1/2″ Birch Plywood
  • 2’x4’x1/4″ Birch Plywood
  • Rostock Jig here

 

Shopping List

Subtotal:  $310.00

 

Pics of a built rostock

 

Spool hanger

imagePosted 12/03/2012:
I finally got tired of having to manually spool filiment off the spool that was on the ground, and then have to “untangle” it after every print.  So.. design these brackets to hold a wooden dowel rod.

 

Posted 12/4/2012:
After letting it run overnight unattended, I have concluded it doesn’t take much tension at all to make the extruder start to dig into the filiment and stop extruding.  I didn’t waste much plastic, as the print stopped around the 4-5 layer of two prusa feet.  But to wake up to unfinished feet was disappointing.

Reprap build notes

I’m buying one of the steppers needed for this project, but I’m still not sure which RepRap I want to build.

First.. a parts list. The one that comes with the project was good, but was a bit on the confusing side to me.

Going to build a wolfstrap as a bootstrap out of wood.   First step, I need a motor to prototype with and make sure mounts are all done properly  I found two sources for the NEMA-17 motors.  I also found two pages giving details on steppers for the darwin and mendel.

www.solarbotics.com for $14.28 and hvwtech.com for $14.65

Both are a bit pricey for under a $30 dollar purchase.

Here’s the specs for the electronics that have to be built.

Gavilan showed me this for the stepper (link link) and driver.   We will need 4 steppers and 3 driviers.  The extruder controller always looks to be seperate on all the builds I’ve seen.

Video of the parts list explained, and a very nice view of part of it being assembled.

Prusa Mendel – A mendel that uses bushings instead ofwith a blog.   This is the one I will be building.
There is a very detailed parts list and nice instructions on how to assemble the end product.

Mendel electronics – looking for a good cheap source for these.  Buying this kit for my electronics.

Wolfstrap:
Berlin 1st Printing
Berlin Wolfstrap