D-Carve, a Different Printed CNC

thingiverse

This text will become a total overhaul of the X-Carve CNC from Inventables (https://www.inventables.com/technologies/x-carve), relying solely on printed parts and easily obtainable components using V-Slot rails. Aside from the printed parts, bolts, and nuts, you will require: * 20x20 V-Slot rail - two pieces of the required length for the X axis * 40x40 from the 20 series (or two 20x40) V-Slot rail - length desired for the Y axis, identical to the previous * 20x40 V-Slot rail - two pieces, length as needed for the Z axis * 688Z bearings for XY wheels - a large quantity (the number of wheels multiplied by 2) * 604Z bearings for Z carriage wheels - 8 total * NEMA17 stepper motors - 4 (two for the X axis, one each for Y and Z axes) * 5 mm shaft pulleys - four in total (two for X axis, one for Y, and one for Z) * 8 mm shaft pulleys - two for the Z axis * ACME leadscrew and its corresponding nut - 1 (an M8 threaded rod can be substituted if the design is altered accordingly) * Timing belt - at least 10 cm longer than your X and Y rails, matched to your pulleys * Looped timing belt - must correspond with your pulleys and Z-axis motor plate Please consult the original X-Carve drawings for assembly (attached here) for clarity. UPDATE #1: Made improvements to the Z axis carriage stability; it no longer wobbles. The spindle is now attached via four M4 screws arranged as a square measuring 35x35 mm. Added mounts for DC and BLDC motors I am testing as spindles (as seen in pics) UPDATE #2: Added new carriage design using HIWIN rails, offering significantly more stiffness; added Dremel 300 and round router mount for both carriages; added tighter Z wheels and matching inner spacers; added drag chain and belt holders. Operational now. Initial tests underway! Pics demonstrate the machine milling out a creeper head from styrofoam using VISUALCADCAM Added laser line holders! First test video: https://youtu.be/rsAjviPOO2U (Machine generating its own wasteboard) Print Settings: * Rafts: Does not Matter * Supports: No * Resolution: 0.5 mm or lower, utilizing a single wall thickness for parts if desired. Both tool holders have different mounting holes; the laser line holder mounts on both sides, and must be within 2 mm spacing between the two carriage attachment points. Note to end-users: A few design decisions had to be made regarding assembly compatibility with existing Inventables files. As you build your X-Carve variant, verify that everything fits as designed and required modifications were indeed incorporated. The following text can help clarify or assist where changes need to occur: Roller Variant: ... (text remains the same)