Difference between revisions of "2x4 CNC Machine"

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m (Progress: updated with drawing success)
(Next Steps: updated from Saturday)
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## Drew Skull and Crossbones (a test file) on Whiteboard (17FEB11)
 
## Drew Skull and Crossbones (a test file) on Whiteboard (17FEB11)
 
# Mendel Parts.
 
# Mendel Parts.
## Convert patterns to gCode
+
## Convert patterns to gCode (19FEB)
 +
## Determine scaling factor for steps (19FEB)
 +
### Learn how to account for tool diameter
 
## Draw patterns for Parts
 
## Draw patterns for Parts
 
## Cut out Parts
 
## Cut out Parts

Revision as of 13:46, 22 February 2011

Creator:
EnabrinTain
Status:
Debuging
Born On:
22 Oct 2010 (CDT)
Last Updated:
13:46, 22 February 2011 (CDT)

Overview

A medium sized CNC Machine capable of cutting patterns

The Plan

  • This project's focus is on implementing basic (though scalable) CNC functionality.

Progress

  • Most of the Parts are ordered.
  • The wood has been cut, but not fitted.
  • Sourced Barrel Nuts locally
  • Electronics and Steppers are in
  • stepper/drive screw couplings ordered but not arriving til monday or tuesday
  • table-top assembled (omg its heavy)
  • gantry fitted and assembled
  • stepper motor mounts drilled
  • drive screws cut
  • Y and Z axis Totally Complete
    • Y and Z axis both stick. Replace drive nuts w/ Delrin nuts (like the mantis has)
  • Successfully drew image on whiteboard with marker.

Parts List

Part Number Price
2'x 4'x 3/4" MDF 4 $45
608ZZ Bearings (BRA) 24 $18
R8zz Bearings 6 $13
Aluminium Angle Bracket (1" x 1/8" x 36") 1  ?
NEMA 23 Steppers 3
240W DC Power Supply 1
CNC Controller Kit (china) 1 $160
1/2" x 10' Threaded Rod (drive screws) 1 $30
1/4" to 1/2" Drive Coupling 3 $40
Limit Switches 6 $10
Sub Total ~$316

Next Steps

  1. Lewters sells Barrel Nuts, so if the ones I ordered don't arrive soon - get some from there. (consolation: I didn't order enough anyway) (DONE - 26OCT10)
  2. Put the Table together.
    1. X-axis (DONE 28OCT10)
      1. 2'x 4' MDF sections bolted together (DONE 27OCT10)
      2. Rails attached (DONE 28OCT10)
      3. Ends attached (DONE 28OCT10)
    2. Y-axis (DONE 30OCT10)
      1. Drill Holes in Gantry Sides (DONE 28OCT10)
      2. Attach Rails (DONE 29OCT10)
      3. Attach B.R.A.s (DONE 29OCT10)
      4. Assemble Gantry (DONE 29OCT10)
    3. Z-axis (DONE 30OCT10)
      1. Drill Holes (DONE 29OCT10)
      2. Attach Rails (DONE 30OCT10) (literally held on by friction according to the book)
      3. Attach B.R.A.s (DONE 30OCT10)
      4. Assemble Router Base (DONE 30OCT10)
  3. Get miscellaneous parts (Drive Couplings) (DONE 27OCT10)
    1. Wait for miscellaneous parts to arrive (Drive Couplings) (DONE 30OCT10)
  4. Wait for the Control Equipment to arrive from China. (ARRIVED- 27OCT10)
  5. Attach Electronics
    1. Drill Motor Mounts (DONE 31OCT10)
    2. Cut Drive Screws (DONE 31OCT10)
    3. Drill holes for screws in gantry pieces (DONE 2NOV10)
    4. Mount Drive Screws for each axis (Y&Z DONE 2NOV10)
    5. Attach motors (DONE sometime in early NOV)
    6. Hook motors to driver board (DONE sometime in early NOV)
    7. Receive USB-to-Parallel Cable (DONE sometime in early NOV)
    8. Configure software (Begin sometime in early NOV)
  6. Debug
    1. X and Z axes are sticking.
      1. Ordered Delrin(plastic) Nuts (4DEC10)
      2. Received (8DEC10)
        1. didn't fit current drive screws - ordering new ones (10DEC10)
        2. replaced the screws that needed replacing. (16FEB11)
    2. Drew Skull and Crossbones (a test file) on Whiteboard (17FEB11)
  7. Mendel Parts.
    1. Convert patterns to gCode (19FEB)
    2. Determine scaling factor for steps (19FEB)
      1. Learn how to account for tool diameter
    3. Draw patterns for Parts
    4. Cut out Parts
    5. PROFIT

Resources

Ideas

  • I'll probably want to go with a belt drive system for the 4'x 8' iteration.

Pretty Pictures

CNC Table
Bearing Rail Assemblies
Gantry Sides w/ BRA's
Gantry Assembled
Z-Axis Layed Out
Y-Axis on Gantry