Gears Plane

I've recently been learning to use Fashion360 software to create gears. I watched many videos and realized that the center distances of spur gears and helical gears with the same module are actually different. Initially, I made many single sets of gears for testing. Then, I created a modular gear tray for my child to play with, I have tested my screw fasteners and the clearance of gear rotation with A1 series, P1 series, and X1 series printers WITH PLA and PETG , so you can print with confidence without worrying about compensating for the X and Y hole dimensions. The only thing to note is that the screws might need to be stronger( better 100% fill). Otherwise, just set your layer height to 0.2 mm and use a 10% helical fill.and I hope you will like it too. ——If you are also studying gears, I can provide some of my gear parameters and some methods for calculating center distances.——In my model, the distance between each hole on the chassis is ten millimeters.——The helix angle of the