Is Affordable 4-Axis Desktop Milling Finally Reality?
Remember the days when CNC milling was limited to large industrial machines, often out of reach for hobbyists and DIY enthusiasts? Those days are long gone. The evolution of desktop CNC milling has brought the power of intricate milling right to our workbenches. And when we talk about 4-axis milling on a desktop, it's like having a mini factory at home.
The journey into 4-axis CNC milling is an exciting one. TAOW showcases the Carvera CNC machine, a hobby-grade desktop machine that promises to revolutionize how we perceive CNC milling. After eight years of using a three-axis CNC machine, the transition to a 4-axis machine is like opening a new world of possibilities. The ability to orient the part using the fourth axis and finish it in one setup is a game-changer.
What can be expected from a 4-axis desktop machine?
The Carvera CNC machine, despite its compact size, is packed with features. It boasts a 6-tool changer, an integrated tool sensor, and a wireless touch probe for mesh bed leveling. The machine's construction is robust, with all axes being screw-driven on linear rails. Plus, it has closed-loop servo control for the X, Y, and Z axes.
The 4-axis add-on is where the Carvera truly shines. With a self-centering four-jaw chuck and an adjustable tailstock, it opens up a world of design possibilities, from intricate sculptures to functional parts.
The Carvera showcases its prowess in milling both soft materials like acrylic and harder ones like aluminum. The results were precise, with external dimensions being accurate to about 0.05 millimeters.
The Carvera is compatible with Fusion 360 for both 3-axis and 4-axis machining. The machine also comes with its own software, which, despite a few hiccups like slow upload speeds, provides a comprehensive control interface.
How much does it cost?
The Carvera CNC machine, with all its advanced features and capabilities, comes with a price tag of $4,800 at the time the video was made. It's worth noting that while this might seem steep for hobbyists, the machine's range of features, especially the 4-axis milling capability, could justify the investment for professionals or serious enthusiasts looking for precision and versatility in their projects.
What is missing?
The Carvera CNC machine, despite its impressive features, has some areas for improvement. Notably, it lacks a machine vice for securely clamping rectangular parts. The laser safety measures could be enhanced, as the enclosure doesn't fully absorb laser light, necessitating the use of provided goggles. Additionally, while the machine's software is comprehensive, it suffers from slow upload speeds, especially with larger files.
In terms of machining, there's a need for optimization. Internal features were found to be slightly undersized, possibly due to recutting chips. And while the machine can handle materials like aluminum, achieving a consistently smooth surface finish requires further refinement in feeds and speeds.
Wrapping Up
The Carvera CNC machine is a testament to how far desktop CNC milling has come. With its 4-axis capabilities, it blurs the line between hobbyist tools and professional equipment. So, whether you're a design enthusiast or a professional looking for an affordable yet powerful milling solution, the Carvera might just be what you're looking for. What would you create with such a tool at your disposal?