Desktop 3018 CNC Engraver / Router Endstops & Accessories

thingiverse

Human: A comprehensive set of useful accessories for desktop CNC machines (3018 CNC) and also 2020 aluminium extrusion profiles. These accessories include: • Mountings for all three axis endstops at both ends, featuring six switches. • Feet - Stabilising feet that slide into the 2020 profile aluminium for enhanced stability. • 2020 aluminium endcaps - Enhance the appearance of the 2020 profile with a sleek finish and reduced sharp edges. • Crank handle - A useful hand crank for the X and Y axis, requiring excess lead screws to protrude. • Axis Knob - A simpler alternative to the Crank Handle, featuring two screw grips for use when there isn't much lead screw. • Bed Clamps - Essential clamps for holding down work pieces securely in place. • 2020 Cable Clamps - Simple right-angles for the 2020 profile to hold wires in a secure and organised manner (M3, M4 & M5 versions available). • Power Switch Box - A convenient enclosure for adding an on/off switch in line with the supply PSU. Fit a rocker power switch and toggle switch for Spindle/laser selection. • M3-T-Nut - Utilise M3 nuts as sliding t-nuts on 2020 aluminium profile for smooth operation. • 2020 aluminium profile right-angle (28mm x 28mm) For joining 2020 profiles at 90 degrees, often missing from CNC kits. Endstops The Y-Axis endstop features a single mount for both front and back switches. The switches are activated by two tabs mounted under the bed with M3 screws, nuts and printed M3 T-nut converters (T-Nut-M3.stl). The upper Z-Axis switch is clamped to the Z-Stepper motor RHS mounting posts, while lower mounts simply clip on. Ensure the Z-Axis drive lead screw engages properly with the stepper motor spindle collar for optimal contact. Wire the switches to the control board using Dupont crimps/header connectors (available at https://www.banggood.com/620pcs-Wire-Jumper-Pin-Header-Connector-Housing-Kit-For-Dupont-and-Crimp-Pins-p-1132947.html). Additional items required: • 6 microswitches (KW12-3) available at https://www.banggood.com/10Pcs-Micro-Limit-Switch-Roller-Lever-5A-125V-Open-Close-Switch-p-945733.html • 12 pcs of M2.5 x 12mm screws and nuts for the switches • 4 pcs M5 x 10mm screws and M5 sliding T-nuts for the mounts • 3 pcs M3 x 10mm screws and nuts for the upper Z mount and Y-Carriage actuator tabs Refer to this informative article for more details on endstops: https://blog.shahada.abubakar.net/post/adding-end-stops-limit-switches-to-the-3018-woodpecker-cnc-router? Power Switch Box The power switch box enables a much-needed on/off switch in line with the supply PSU. Utilise a rocker switch for a panel cut-out of 19mm x 13mm (common dimensions). Fit a 5.5mm X 2.1mm DC Power Socket to supply power through the switch, connecting it to a 5.5mm x 2.1mm DC jack that will connect to the control board. Order this item at https://www.banggood.com/5_5mm-X-2_1mm-DC-Power-Supply-Metal-Jack-Socket-With-Nut-And-Washer-p-934446.html. Install a miniature change-over (SPDT) toggle switch (1/4" / 6.3mm) wired to the Laser/Spindle selection header pins for effortless motor/laser selection. Order this item at https://www.banggood.com/Red-Toggle-Switch-DPDT-On-Off-On-6-PINS-3-Position-5A-120Vac-2A-250Vac-p-1159114.html. If you don't possess a laser, there's an alternative version available without this option: CNC3018_PowerSwitchBox_NO_laserSW.stl.