Huge Cheap Home CNC (#hchcnc) by Enic

Last crawled date: 3 years ago

Project: Huge Cheap Home CNC (#hchcnc)
(continue of my Project: https://www.thingiverse.com/thing:2781630
some files listed can be found there)
The best guide for beginners: just start already ;-)
..and don't forget to press Like button ;-)
Design advantages:
Only 3 Steppers for XYZ
Strong construction (almost no plastic parts for frame and legs)
Small number of parts and parts types
Really small parts size, print time, filament amount
Small and cheap bollbearings
Less screws and nuts
Balanced Head Mount
Universal Head Mount
Mobility
Self designed hotbed from scratch
... ets.
Possibilities / features

New: MIG Welding !!!https://youtu.be/7JIfTCqgZAc


New: Foam cutting operationhttps://youtu.be/GZXX6x-DWQc
Foam Cutting Head: https://www.thingiverse.com/thing:3339841


3D Printing:https://youtu.be/j36U9geLij4https://youtu.be/kaJyCJsM_6M (all parts are visible here i hope ;-)


Laser Engravinghttps://youtu.be/N4sjGfpQQ8g


Drilling by Dremel 4300https://youtu.be/VoB-7SFKuH0


Wood Engraving by Dremel 4300https://youtu.be/m8kS548m90w

Wood Milling by Dremel 4300https://youtu.be/IL2M5LSuGdYhttps://youtu.be/nneKpp0wLkA
The Idea:
The Idea is based on
C-23.5mm OD https://www.thingiverse.com/thing:724999
F-25mm OD https://www.thingiverse.com/thing:790533
Borrowed parts, solutions and Thankses

Quick fit carriage systemhttps://www.thingiverse.com/thing:1670305
Thanks to Lukas https://www.thingiverse.com/lukie80/about


Dasaki Ramps 1.4 Enclosure / Box / Casehttps://www.thingiverse.com/thing:761806
Thanks to David Sanz Kirbis https://www.thingiverse.com/dasaki/about


Case for the Full Graphic Smart LCD Controllerhttps://www.thingiverse.com/thing:87250
Thanks to Michael Christou https://www.thingiverse.com/wersy/about


Parametric Z-axis coupler (stepper and threaded rod coupling) https://www.thingiverse.com/thing:1329750
Thanks to Lorenzo Aspesi https://www.thingiverse.com/aspesilorenzo/about


Printrbot Simple Metal GT2 Belt Cliphttps://www.thingiverse.com/thing:746423
Thanks to Spanner Hands https://www.thingiverse.com/SpannerHands/about


MiniDrill Mountingshttps://www.tinkercad.com/things/kVAEjzTXiO7#/
Thanks to Miguel Braidot https://www.thingiverse.com/mabraidot/about


TUSH - The Ultimate Spool Holderhttps://www.thingiverse.com/thing:2047554
Thanks to Vassil Gounev https://www.thingiverse.com/filamentry/about


UPGRADING YOUR RAMPS WITH HIGH POWER COMPONENTShttp://www.instructables.com/id/Upgrading-Your-RAMPS-With-High-Power-Components/
Thanks to AndJoeG http://www.instructables.com/member/AndJoeG/

INCREASING VOLTAGE SERVER SWITCHED POWER SUPPLYhttps://pa0fri.home.xs4all.nl/Diversen/DPS-800GB%20A%20Server%20sypply/DPS-800GB%20A%20PSU%20eng.htm
Thanks to Frits, PAØFRI https://pa0fri.home.xs4all.nl/
The DESIGN & CONSTRUCTION
All parts design was made by myself from scratch with OpenSCAD.
Designed Parts (0x04..0x19):
Part 04: 3xBearing_Ring
cnc_laser_04_3xBearing_Ring.scad
cnc_laser_04_3xBearing_Ring.stl
Quantity: 12 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 30 min Weight: 4.45 g Length 1.75: 1480.6mm
Purpose: Main housing for MR83ZZ bearing to slide over d25 tubes
Assemble guide: Push 3 x MR83ZZ bearing into the holes, fix with M3 screw and nut gently. Put 2x on every of 6x d25 1 meter tubes.
Part 05: hole_helper (not a permanent part, used only during building)
cnc_laser_05_hole_helper.scad
cnc_laser_05_hole_helper.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 15 min Weight: 2.41 g Length 1.75: 802.1mm
Purpose: To achieve exactly parallel holes on both ends of a tubes
Assemble guide: Measure and cut d25 tube first. Fit 2 hole helpers on the both ends of the tube. The end of each tube shuld exectly match with hole helper. Put a tube an a horizontal surface. Drill first upper hole with 2mm drill. Insert a short 2mm nail in a hole (don’t remove hole helper). Drill the second upper hole on another end of a tube. Insert a short 2mm nail in a hole (don’t remove hole helper). Accuratly turn the tube upside down and drill both end bottom holes (currently they are on the top) with 2mm drill. Remove both nails. Remove both hole helpers. Drill a holes smoothly increasing drill sizes until you got ~10.5mm holes.
Part 06: BaseGasket
cnc_laser_06_BaseGasket.scad
cnc_laser_06_BaseGasket.stl
Quantity: 4 pcs
Params/1: Supports: No Layer: 0.2 Infill 100% Time: 1 min Weight: 0.09 g Length 1.75: 31.5mm
Purpose: To fill clearance between aluminum u-profiles of the base
Assemble guide: Сombine a holes in an aluminum u-profiles of a base, insert gasket and then insert M10 threaded rod from top. Fix with M10 nut from bottom.
Part 07: FixtureRing
cnc_laser_07_FixtureRing.scad
cnc_laser_07_FixtureRing.stl
Quantity: 8 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 31 min Weight: 5.00 g Length 1.75: 1661.8mm
Purpose: 1)To fix 2 moving tubes and 2) fix rubber belts
Assemble guide: 1) Fix 4 pcs to StepperFrame_v3a (after complete assemble of GuideRoller_v3 and Stepper fixture) with M3 screws and nuts then fix to the tube with upper holes M3 screw and nut. 2) Fix to the front and back tubes near each end with upper holes M3 screw and nut.
Part 08: StepperFrame
cnc_laser_08_StepperFrame_v3a.gcode
cnc_laser_08_StepperFrame_v3a.scad
cnc_laser_08_StepperFrame_v3a.stl
Quantity: 4 pcs
Params/1: Supports: Yes, Brim: Yes (included in provided .gcode file) Layer: 0.2 Infill 20% Time: 57 min Weight: 10.12 g Length 1.75: 3366.2mm
Purpose: To fix steppers and free ends of moving tubes
Assemble guide: Insert assembled GuideRoller_v3 screws. Fix stepper on stepper end only. Fix FixtureRing.
Part 09: GuideRoller
cnc_laser_09_GuideRoller_v3.scad
cnc_laser_09_GuideRoller_v3.stl
Quantity: 8 pcs
Params/1: Supports: No Layer: 0.15 Infill 100% Time: 14 min Weight: 0.37 g Length 1.75: 123.2mm
Purpose: To hold and guide a belts to GT2 timing pulley
Assemble guide: Fix a MR83ZZ bearing on a 32mm M3 screw with two M3 nuts. Push GuideRoller on a MR83ZZ bearing gently until stop. Insert two assembled Rollers into StepperFrame_v3a according a picture provided.
Part 0A: FixtureFrame
cnc_laser_0A_FixtureFrame.scad
cnc_laser_0A_FixtureFrame.stl
Quantity: 12 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 13 min Weight: 2.25 g Length 1.75: 746.9mm
Purpose: 1)To fix a space between each pair of 3xBearing_Rings on a static tubes 2) To hold ends of front and back rubber belts.
Assemble guide: 1)Attach two of FixtureFrame to the both bottom MR83ZZ bearing “ears” of the 3xBearing_Rings on a static tubes.2) Push FixtureFrame on the top of each FixtureRing on a ends of front and back static tubes.
Part 0B: HeadPlate (middle)
cnc_laser_0B_HeadPlate.scad
cnc_laser_0B_HeadPlate.stl
Quantity: 1 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 1h 9 min Weight: 11.22 g Length 1.75: 3730.5 mm
Purpose: Head middle plate.
Assemble guide: Insert 4 M8 threaded rods into the bottom HeadPlate. Collect all 4 3xBearing_Ring symmetrically add four HeadFixers (two 2a and two 2b). Insert M8 threaded rods of bottom plate into four HeadFixers holes from bottom. Attach middle HeadPlate and then top the top. Fix with M8 nuts from both sides. Look at the pictures provided.
Part 0C: LaserMount
cnc_laser_0C_LaserMount.scad
cnc_laser_0C_LaserMount.stl
Quantity: 1 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 1h 26 min Weight: 14.31 g Length 1.75: 4760.7 mm
Purpose: Mount Laser on a Head.
Assemble guide: Attach Laser with M3 screws. Attach LaserMount on two diagonal M8 threaded rods and fix with M8 nuts.
Part 0D: OptSensorFixture
cnc_laser_0D_OptSensorFixture.scad
cnc_laser_0D_OptSensorFixture.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 27 min Weight: 2.87 g Length 1.75: 953.9 mm
Purpose: Mount Optical Endstop Sensor to M10 threaded rod.
Assemble guide: Attach Sensor with M3 screw and nut. Attach OptSensorFixture to the M10 threaded rod with two M10 nuts. According to the picture.
Part 0E: OptSensorFlag
cnc_laser_0E_OptSensorFlag.scad
cnc_laser_0E_OptSensorFlag.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 7 min Weight: 0.40 g Length 1.75: 133.1 mm
Purpose: Cover IR beam of Optical Endstop sensors.
Assemble guide: Paint with black nail polish from both sides! Attach to Stepper with M3 screw Adjust to be in a middle of Optical Sensor in a zero position.
Part 0F: HeadFixer
cnc_laser_0F_HeadFixer_v2a.scad
cnc_laser_0F_HeadFixer_v2a.stl
cnc_laser_0F_HeadFixer_v2b.scad
cnc_laser_0F_HeadFixer_v2b.stl
Quantity: 4 pcs (2a + 2b)
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 35 min Weight: 5.89 g Length 1.75: 1958.3 mm
Purpose: Fix .four 3xBearing_Rings together
Assemble guide: Insert 4 M8 threaded rods into the bottom HeadPlate. Collect all 4 3xBearing_Ring symmetrically add four HeadFixers (two 2a and two 2b). Insert M8 threaded rods of bottom plate into four HeadFixers holes from bottom. Attach top HeadPlate on the top. Fix with M8 nuts from both sides. Look at the pictures provided.
Part 10: StepperPlate (top)
cnc_laser_10_StepperPlate1.scad
cnc_laser_10_StepperPlate1.stl
Quantity: 1 pcs
Purpose: Fix Z-axis Stepper
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 1h 45 min Weight: 26.43 g Length 1.75: 8789.2 mm
Assemble guide: Attach Z-axis Stepper with 4 M3 screews. Insert 4 M8 threaded rods into the bottom HeadPlate. Collect all 4 3xBearing_Ring symmetrically add four HeadFixers (two 2a and two 2b). Insert M8 threaded rods of bottom plate into four HeadFixers holes from bottom. Attach middle HeadPlate and then top the top. Fix with M8 nuts from both sides. Look at the pictures provided.
Part 11: HeadPlate_Bottom
cnc_laser_11_HeadPlate_Bottom.scad
cnc_laser_11_HeadPlate_Bottom.stl
Quantity: 1 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 2h 34 min Weight: 33.35 g Length 1.75: 11092.4 mm
Assemble guide: Insert 4 M8 threaded rods into the bottom HeadPlate. Collect all 4 3xBearing_Ring symmetrically add four HeadFixers (two 2a and two 2b). Insert M8 threaded rods of bottom plate into four HeadFixers holes from bottom. Attach middle HeadPlate and then top the top. Fix with M8 nuts from both sides. Look at the pictures provided.
Part 12: Z_Plate
cnc_laser_12_Z_Plate.scad
cnc_laser_12_Z_Plate.stl
Quantity: 1 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 1h 4 min Weight: 15.70 g Length 1.75: 5220.5 mm
Assemble guide: Insert M8 nut in a hole. Wind on Z-axis threaded rod. Fit tight on Z-axis d25 tubes with 4x M3 nuts and 4x M3 screws.
Part 13: SplittedFixture (for optical X,Y endstop sensors)
cnc_laser_13_SplittedFixture.scad
cnc_laser_13_SplittedFixture.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 26 min Weight: 5.76 g Length 1.75: 1917.3 mm
Assemble guide: Insert 2 x M3 nuts in a holes. Put parts from both sides of d25 tube near 0.0 by XY coords and fix with 2 x M3 screws. Attach optical endstop sensor.
Part 14: EndStopZ (fixture for Z Endstop)
cnc_laser_14_EndStopZ.scad
cnc_laser_14_EndStopZ.stl
Quantity: 1 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 11 min Weight: 0.81 g Length 1.75: 269.0 mm
Assemble guide: use one of Z stepper screw to fix EndStopZ holder. Attach Z Endstop Optical sensor with m3 screw and nut. Use a piece of insulation tape to prevent electrical contacts.
Part 15: SpindleFixture (Optional: to fix custom 12v motor spindle)
cnc_laser_15_SpindleFixture.scad
cnc_laser_15_SpindleFixture.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 31 min Weight: 6.79 g Length 1.75: 2258.4 mm
Part 16: DremelFlexibleFixture (Optional: to fix Dremel flex shaft)
cnc_laser_16_DremelFlexibleFixture.scad
cnc_laser_16_DremelFlexibleFixture.stl
Quantity: 2 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 17 min Weight: 3.43 g Length 1.75: 1141.8 mm
Assemble guide: Attach to the custom plate from "Quick fit carriage system" with pair of M3 screws and nuts
Part 17: marker (Optional: to fix pencil or marker)
cnc_laser_17_marker.scad
cnc_laser_17_marker.stl
Quantity: 1 pcs (3 sizes)
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 9 min Weight: 1.74 g Length 1.75: 579.7 mm
Assemble guide: use acetone as a glue to glue to the custom plate from "Quick fit carriage system"
Part 18.3: coupler3 top M10 to 2x M8 threaded rod ridgepole fixtures
cnc_laser_18_coupler3_ok.scad
cnc_laser_18_coupler3.stl
Quantity: 4 pcs
Params/1: Supports: No Layer: 0.2 Infill 20% Time: 22 min Weight: 3.04 g Length 1.75: 1010.8 mm
Assemble guide: cut the internal thread with a tap on M8. Screw M8 threaded rod into 18.3 on the top and 18.4 at the bottom. Drill a M3 hole in the base in place. Fix with M3 screw and nut.
Part 18.4: coupler4 bottom M8 threaded rod ridgepole fixtures
cnc_laser_18_coupler4.scad
cnc_laser_18_coupler4.stl
Quantity: 8 pcs
Params/1: Supports: Yes Layer: 0.2 Infill 20% Time: 23 min Weight: 2.77 g Length 1.75: 922.6 mm
Assemble guide: cut the internal thread with a tap on M8. Screw M8 threaded rod into 18.3 on the top and 18.4 at the bottom. Drill a M3 hole in the base in place. Fix with M3 screw and nut.
Part 19: heated_table_connector_strip1
cnc_laser_19_heated_table_connector_strip1.scad
cnc_laser_19_heated_table_connector_strip1.stl
Quantity: 4 pcs
Params/1: Supports: Yes Layer: 0.2 Infill 20% Time: 31 min Weight: 5.89 g Length 1.75: 1959.1 mm
Assemble guide: Use a kitchen cutting board from strained glass. Remove a picture with hot air gun. (Don't remove glue). Attach to 1-1.2 mm alluminium plate. Cover alluminium with 2-3 layers of captone tape. Use nichrome wires. Look at a pictures for detailes ;-)
Firmware:
Marlin_1.1.8_Configuration.zip - My Configuration files for Marlin Firmware
Laser PWM control is attached to D6 at Servos ramps 1.4 connector.
Laser power is controlled by:
M3 Sxxx - Laser On: xxx=0..255, 255 - max
M5 - Laser Off
Test code:
PowerTestCode.zip - Code to generate Laser power test .gcode files (windows)
TestGcode.zip - Test files to start with
CAM Software Used:
Laser GRBL 2.8.35: Vectorize mode only (without filling).
Postprocess:
Replace:
"M5 S255" -> "M3 S0"
"M3" -> "M3 S255"
"M5" -> "M3 S0"
Rename: .nc -> .gcode
Av's SVG to GCODE v 1.2.6
Preprocess:
check initial svg units (Marlin works in mm only):
Replace 'width="4in" height="3in"'

with 'width="4000" height="3000"' from 'viewBox="0 0 4000 3000"'

Postprocess:
Replace:
" M62 P0" -> ""
"M3 S1" -> "M3 S255"
"M5" -> "M3 S0"
Ordered Parts:
1x: DIY 5.5W high power 450nm Focusing Blue Laser Engraving cutting TTL 5500mW
1x10m: Hot sale 10meter GT2-6mm open timing belt width 6mm GT2 2GT Timing belt
4x: 20teeth GT2 Timing pulley 8mm
1x: 50 PCS high quality MR83ZZ(383 )MINI bearings 383 ABEC-3 MR83ZZ bearing--- free shipping
$11.33 https://www.aliexpress.com/item/*/32440196802.html
1x: Free shipping !! 3D printer smart controller RAMPS 1.4 LCD 12864 LCD control panel blue screen
$8.80 https://www.aliexpress.com/item/*/1952896825.html
1x: Free shipping 3PCS Nema17 Stepper Motor 42 motor Nema 17 motor 42BYGH 1.7A (17HS4401) motor 4-lead for 3D printerhttps://www.aliexpress.com/item/*/32665922113.html
1x: 3D Printer 1pc Mega 2560 R3 + 1pc RAMPS 1.4 control panel+ 5pcs DRV8825 Stepper Motor Drive Carrier Reprap for 3D printer kit
$17.50 https://www.aliexpress.com/item/*/32599773680.html
2x: 1pcs IR Infrared Slotted Optical Speed Measuring Sensor Optocoupler Module For Motor Test For Arduino PIC AVR https://www.aliexpress.com/item/*/32802060247.html
~7m: Chrome Tube Hanging Rail d=25mm s=1mm L=3m ~$1/meter
2x: 8mm x 2000mm Stainless Steel M8 Threaded Rod
1x: 10mm x 2000mm Stainless Steel M10 Threaded Rod
4x: ALUMINIUM U-PROFILE 20mm x 15mm x 2mm x 1000mm
m8 x 1.25 nut
m10 x 1.25 nut
m10 washer
m3 nut: https://www.aliexpress.com/item/*/32729344815.html
M3 screw 3 Phillips Pan Head: https://www.aliexpress.com/item/*/32776662981.html
2x: 608ZZ Bearing 8x22x7 mm ( 10 PCS ) ABEC-5 Skate Stroller Miniature 608 ZZ Ball Bearings 608Z 608 2Z Bearing https://www.aliexpress.com/item/*/549643998.html