This project is a desktop CNC lathe I am developing. The CAD design is complete and I have started manufacturing components. The main supporting beams to which the gantry is mounted is a 100x100mm box section that I have repurposed from another project. This sits on an RSJ which I bought from an offcut supplier to minimise costs. The cabinet size is approximately 780x450x360mm (lxhxw) and the chuck size is 80mm currently. The max length of work that could be machined is 300mm but this would be reduced as it would likely require a tailstock. The system uses 2x Nema 23 motors for the x and z-axis with a gear reduction of 5:1 to increase torque. A MACH3 breakout board is used to drive the TB6600 stepper drivers and an inductive proximity sensor is used to get the rpm of the spindle. This can later be used for threading operations. The total budget for the build is around £500 as I have repurposed spare parts I had from other projects. 
DIY CNC Lathe
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DIY CNC Lathe

Published: