Just Another One Mostly Printed CNC (jaoMPCNC). Laser engraver cutter XY 1m x 1m x 0.5m d25 version. by Enic

Last crawled date: 3 years ago

Just Another One Mostly Printed CNC (jaoMPCNC). Laser engraver cutter XY 1m x 1m x 0.5m version. (Z coordinate is in design)
UPD: Full XYZ version is ready!!! https://www.thingiverse.com/thing:3002700
https://www.youtube.com/watch?v=0E84UF7myyA
https://www.youtube.com/watch?v=hCic6l8SmYc
( detailed document are attached cnc_laser_diy_description_guidelines.docx )
Real work area is ~ 820 x 820 mm
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
All parts design was made from scratch with OpenSCAD.
Printed with ABS on my DIY 3DPrintMi based on: https://www.thingiverse.com/thing:95339
Design advantages:
• More Strong construction
• Small number of parts and parts types
• Really small parts size, print time, abs amount
• Less screws and nuts
• Balanced Head Mount
• Only 2 Steppers for XY-version, (+1 stepper for XYZ version)
• Mobility
• …
Borrowed parts:
Dasaki Ramps 1.4 Enclosure / Box / Case https://www.thingiverse.com/thing:761806
Printrbot Simple Metal GT2 Belt Clip https://www.thingiverse.com/thing:746423
Parametric Z-axis coupler (stepper and threaded rod coupling) https://www.thingiverse.com/thing:1329750
Case for the Full Graphic Smart LCD Controller https://www.thingiverse.com/thing:87250
fanless HP PS https://www.rcgroups.com/forums/showthread.php?1465371-Help-me-fanless-HP-PS-26-36-42A
Designed Parts (04..0F):
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
cnc_laser_0B_HeadPlate.scad
cnc_laser_0B_HeadPlate.stl
Quantity: 2 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 top and bottom plates.
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 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.
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
1x: 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