Beefncheese Dual Head X-Y Offset Calibration

thingiverse

This model is based off the x-y offset calibration sequence used by Stratasys Fortus 250mc 3D printers, which involves three sets of models for varying levels of resolution. The 0.2mm model offers a coarse resolution and should be used first, while the 0.1mm and 0.05mm resolution models are available for further accuracy if needed. In most cases, using the 0.2mm model yields sufficient results, but including higher resolution models provides additional options. Recommended print settings for a 0.4mm nozzle include: * Extrusion width: 0.48mm * Layer Height: 0.2mm * First Layer Height: 0.2mm * Top Solid Layers: 2 * Bottom Solid Layers: 1 * Outline/Perimeter shells: 1 * Infill: 30% * Print Speed: 2400 mm/min * Allow Single Extrusion Walls Using a prime pillar of at least 8mm is essential for ensuring that the second nozzle is properly primed for single wall extrusion on top of the base model. To use this model, it's recommended to print it with contrasting colors in the two heads to make reading the indicated offset easier. On each base model (T0), there are two evaluation lines and multiple tick lines along each evaluation line on the bottom and right-hand side of the model. The top model (T1) is a skewed single extrusion wall that crosses over each evaluation line close to one of the tick marks. The crossover point of the top model (T1) and the evaluation line on the base model (T0) determines the offset of your extruders. The right-hand side of the model indicates offsets in the X direction, while the bottom side indicates offsets in the Y direction. In line with each middle tick mark along the evaluation line is an indication arrow that denotes the origin for the x and y calibration scale. Each tick line refers to an offset based on the resolution of the model used. For example, one tick line above the origin arrow on the right side of the 0.1mm resolution model indicates an offset of 0.1mm in the X direction. If your machine's offsets are set correctly, the top model (T1) will cross over the evaluation line on the base (T0) in line with the origin arrows on the bottom and right-hand sides. Once printed, you can hold the model up to a light source to get a better idea of where the crossover point is.