OpenSCAD stepper, bearings, jhead and fans script

thingiverse

An OpenSCAD script generates basic shapes to represent common bearing, stepper motor, and PC cooling fan sizes for scad models now with added jhead. Testing a design for an extruder in software was the goal to see if things would fit so making modules for repeatedly used things resulted in this basic script. Recently remixed to include PC cooling fans as suggested by gddeen. Instructions To use, download the scadscript and rename it back to hardware.scad. Thingiverse will prepend some text to the script name to remove that first. To call the functions from other scad scripts, add the following to the top of your own scad script: include Note: You can use the above include statement if the hardware.scad file is in the same directory as the scad file that has the include statement. Otherwise you need to include the relevant path for the file name. Then you can call any of the predefined functions: bearing624(); bearingLM8UU(); bearing626(); bearing608(); bearing688ZZ(); nema14(); nema17(); fan25(); fan30(); fan40(); fan50(); fan60(); fan70(); fan80(); fan90(); fan120(); hotend(); These aren't meant to be nice looking models, just used to work out fit and function on other models and save you a bit of work trying to find dimensions. Adding additional bearings, stepper motors or fans... The predefined functions are wrappers that define the dimensions for generic functions that define the model. E.g. bearing688ZZ() calls the generic bearing() function and passes in the dimensions for a 688ZZ bearing. //Predefined LM8UU Bearing module bearing688ZZ() { bearing(16, 8, 5); } and the bearing() function takes the following arguments: bearing(outerRaceSize, innerRaceSize, thickness) Similarly, the nema17() function calls the generic stepperMotor() functions and passes the relevant dimensions. module nema14() { stepperMotor(35.2, 36, 26.0, 3, 5, 24, 22, 2); } stepperMotor() take the following arguments: stepperMotor(caseSize, caseHeight, holeSpacing, holeDiameter, shaftDiameter, shaftHeight, shaftCollarDiameter, shaftCollarThickness) The fan function works the same way. So for a 60mm fan call fan60() which passes the relevant dimensions to fan(): module fan60() { fan(60,25,50,3.5); } fan() takes the following dimensions. module fan(width,thickness,mountingHoleDistance,mountingHoleSize)