X & Y Calibration Ruler Pointer

thingiverse

Clip this on to your hot end nozzle for a precision pointer. Now you can easily see exactly how much the head/bed is moving during your calibrations. WARNING: Do not attach while your hot end is warm, or the plastic will melt, warp or possible fuse to your hot end. I've sized mine to a ubis hot end that came with my Printrbot Simple 1r05, but because its small, it likely to fit most, even if it flexes slightly... It's not a precision print, but its a precision tool... Gets the job done, so to speak... This is my FIRST EVER 3d print that I'm sharing with the world, so please give me your feed back... even though its not much to go on... thanks! Instructions You may need to orient the STL in your host so that it prints flat. Only attach to hot end once it is cool to the touch. Lay your ruler flat to the bed. Ensure it is square with the opposing axis; perhaps have your nozzle on the 0mm of your ruler, then move the measuring axis to the opposite end, then line up with the maximum travel point on the ruler. Then step through your points on the interface to confirm your "Steps"... FOR THOSE OF YOU who are reading this and have NOOOO idea what this is for.... Your software sends 'pulses' to the printer in order to move the motors by a specific amount. That amount MUST be exact to what the model or software intends. But many variables come into play when determining how far the printer will travel in real life to get to the 'intended' destination. Motor variation in manufacturing, pinion teeth, pulley teach size and count, power rating etc... This isn't going to be a tutorial on calibrating your printer, but you would send M501 or M503 to your printer to get a read out of the settings. Then you would use M92 to set the "Steps Per Unit", this is how many pulses it sends to each motor to achieve a 'unit', (or most likely steps per mm)....