Delphi Delta: XL Printer made from 16mm or 5/8" Aluminium Tubes

thingiverse

It appears you've shared a guide for calibrating and maintaining a delta-style 3D printer, specifically the Rostock Max v2 model. This document provides in-depth instructions on how to adjust various settings and perform checks to ensure optimal performance of your printer. ### Key Points 1. **Printing Settings:** * The design includes settings for printing at 35% infill. * The temperature setting is 220C for PLA, which results in good adhesion and stiffness. 2. **Calibration Steps:** * **Manual Z Home Position:** This can be estimated using a ruler and should be entered into the MANUAL\_Z\_HOME\_POS macro with a few mm of "working room" to adjust it accurately. * **DELTA_RADIUS:** This is the length of the XY projection of the diagonal rod when the effector head is centered. It's essential to estimate this accurately using a ruler or square. * **DELTA_DIAGONAL_ROD:** This setting is critical and should be measured as accurately as possible with calipers. 3. **End Stop Calibration:** * Adjust the position of the endstops so that the extruder tip would be closer to the center after homing and moving in pure Z to a position just above the bed. 4. **Z-Height Calibration:** * Home the effector, move it a few mm above the center of the print bed, lower the print head until the extruder tip almost touches the glass, read the extruder position (M114), and subtract the Z ordinate from the setting for MANUAL_Z_HOME_POS. 5. **Radius Calibration:** * Move the head to a position slightly above the print bed and near the center, measure the actual height above the print bed, move the head towards the edge of the bed, and measure the true distance to the bed. ### Additional Notes * It's recommended to add arm clips to keep hotend cables out of the way while printing. * The document mentions using a drill and an M5 Tap to tap holes in the carriage for the bearings.