DIY CNC 013 - Configuration & Basic Testing
Welcome back for another update of my DIY CNC build series. Today, I'll bring you up to speed with everything I’ve been up to over the past 3-4 weeks. I took some time between this update and the last to familiarize myself with the machine and build trust in its performance capabilities.
In this update, I'll showcase the brand-new baseboard and spoil board. We won’t be surfacing the spoil board in this video; that will come in the next update when we start conducting some real test cuts. I'll then demonstrate how I created the extension cable for the motors and proximity sensors, designing them for quick-disconnect from the control unit. Additionally, I'll show you how I installed the NEMA 23 motors and discuss the advantages and disadvantages of various couplers I've tried. Following this, I'll give a live demo of the Auto-homing process for the machine.
Next, I'll provide a demo of the spindle water pump and explain how I plumbed it in, running it through corrugated tubing for protection along with the power to the spindle. I'll also discuss how I configured the spindle to be controlled via the Mach3 software. Although I couldn't achieve speed control, I managed to enable clockwise and counterclockwise control, including start/stop and spindle disable functions. I'll give a Mach3 software demo, explaining how I configured the ports and pins for successful spindle operation. Additionally, I'll demonstrate the relay board and wiring from the Mach 3 breakout board. I'll also show you how to program your VFD to use external pins for control rather than the onboard front display controls. Another crucial aspect I'll cover is configuring the DIP switches on stepper drivers to set pulses per revolution, explaining the trade-off between speed and accuracy for NEMA motors.
Finally, I'll demonstrate the machine running some G-code. I've decided to run the ‘roadrunner’ G-code that comes pre-built with Mach3. While simple, it's a safe option for experimenting with your machine for the first time.
In the next video, I'll focus on further calibration of the machine and surfacing the spoil board for the first time. Then, we'll dive into some real cuts! I'm looking forward to having you back here again. Take it easy!
#cnc #cncmachine #cncrouter
00:00 Intro
01:22 Baseboard and Spoilboard
06:04 Wiring and Quick-Disconnect
15:40 Proximity Sensors and Auto-Home
20:47 Controlling the CNC Intel NUC with VNC Server
27:34 Motor Installation and Coupler Problems
33:00 Spindle Plumbing and Water Pump Demonstration
36:13 VFD Spindle Control via Mach3 Demonstration
39:00 Mach3 Spindle Relay Configuration
47:30 Mach3 Breakoutboard and Relay Connections
51:24 VFD Programming
55:43 Pulses Per Revolution - Speed vs Accuracy
1:08:49 Running some Test Gcode
1:13:23 Outro
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▶ Useful videos that helped me setup Mach3:
• MACH 3 CNC Router Training Tutorial after ...
• Mach 3 Soft Limits & Offsets The Complete ...
• Mach3 USB Controller Output Terminals
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▶▶ Watch the whole series of videos:
▶ Part 1: • DIY CNC 001 - Introduction
▶ Part 2: • DIY CNC 002 - Specification & Hardware
▶ Part 3: • DIY CNC 003 - Tools for Machining Aluminium
▶ Part 4: • DIY CNC 004 - Drilling, Counterboring and ...
▶ Part 5: • DIY CNC 005 - Y-Axis Frame Assembly
▶ Part 6: • DIY CNC 006 - Gantry Assembly and Bracket ...
▶ Part 7: • DIY CNC 007 - Z-Axis Assembly
▶ Part 8: • DIY CNC 008 - Linear Rail Installation
▶ Part 9: • DIY CNC 009 - Surface Board, Spindle Insta...
▶ Part 10: • DIY CNC 010 - Closed Loop NEMA Wiring and ...
▶ Part 11: • DIY CNC 011 - VFD and Spindle Test
▶ Part 12: • DIY CNC 012 - Electrical Control Box
▶ Part 13: • DIY CNC 013 - Configuration & Basic Testing
▶ Part 14: • DIY CNC 014 - Motor Tuning, Squareness and...
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