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====== CNC Router - Homebrew ======
~~NOTOC~~
{{ :equipment:CNC_homebrew.jpg?400|}}

===== Make/Model =====

Original machine was custom built by Ron Bean and Tom Gondek at Milwaukee Makerspace. Since it has arrived at The Bodgery it has been rebuilt and modified primarily by Alex Kovell, Tony Roman, and Chris Kaufmann.

===== Training Required =====
This is a red tag tool. You MUST BE TRAINED before using it.

Contact Alex Kovell or Tony Roman to set up an appointment for your training.

===== Cost To Use =====
  * $5/hr runtime
===== Specs =====

==== Software ====
  * G-code is sent to the board via browser based [[http://chilipeppr.com/tinyg|Chilipeppr]].
  * [[https://github.com/chilipeppr/serial-port-json-server|Serial Port JSON Server]] is required to send the G-code.

==== Work Area ====
  * 24" x 32.5"

==== Cutting Tool ====
  * [[http://www.dewalt.com/tools/woodworking-routers-dwp611.aspx|Dewalt DWP611 Compact Router]]
    * Amps	        7.0Amps
    * Horsepower	1-1/4HP
    * No Load Speed	16,000-27,000rpm
    * Collet Diameter	1/4"
    * Spindle Lock	12 position


==== Stepper Motors ====
  * <del>Oriental Motor Co. VEXTA C6244-9212K stepper motors (X,Y axes)</del>
    * <del>5.7V, 1.6A, 1.8 degrees/step, current limited - running 24v</del>
    * One of original X,Y motors burned out, they have been replaced with:
  * X,Y-axis [[http://www.automationtechnologiesinc.com/products-page/stepper-motors/kl23h286-20-8b|NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B)]] wired in series
    * {{:equipment:wiringDiagram_KL23H286-20-8B.pdf|NEMA23 Wiring diagram}}
  * Z-axis ALM 90130-25-SPA stepper motor
    * 5.7V, 1.6A, 1.8 degrees/step, current limited - running 24v

==== Power Supplies ====
  * Microtel SP-150-24IER power supplies
    * 150 watt, 115vAC/1ph/60Hz 2.5 amp input, 24VDC 6.3 amp output.
==== Controller Board ====
  * [[https://github.com/synthetos/TinyG/wiki|TinyG v8]]
    * {{https://camo.githubusercontent.com/f82917a94b87bc98750b96f4303d0018a6ece26b/687474703a2f2f6661726d332e737461746963666c69636b722e636f6d2f323837332f31303836333833303138335f353739393939613330635f6f2e706e67|TinyG board diagram}}
==== Bits ====
  * 1/4 to 1/8 step down collet.
  * We have a few 1/8" cutting head, 1/8" shank, chipbreaker bits.
  * Please provide your own bits if you wish to do anything precise.

==== Helpful Documents ====
  * {{:equipment:cnc_operatinginstructions.doc|Homebrew CNC Operating Instructions}}
  * {{:equipment:cnc_easel_gcodegeneration.doc|Gcode generation from Easel}}

===== History =====

day/month/year\\
17/04/2016 Started a timeline\\
2015       Acquired Homebrew CNC from Milwaukee Makerspace\\
2015       Purchased TinyG v8 controller board\\
20/02/2016 CNC router operational. \\
25/03/2016 X axis stepper motor overheating.\\
17/04/2016 Purchased 3 NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B) TY James Pittman!\\
17/04/2016 Replaced X,Y steppers with NEMA23 425oz/in 2.8A Stepper Motor ¼” Dual shaft (KL23H286-20-8B)\\
23/04/2016 Switched X,Y steppers from parallel to series. Power draw was too high in parallel.\\