변속기 오일 교환 수리 사례

2026. 9. 1. 작업

난이도 & 준비물

증상

I need to make some gears/pinions myself. I have access to a high quality 4-axis CNC mill, but not to a lathe. I'd like to cut these gears out of flat stock (facing), rather than round (edgewise) using narrow end mills. Being able to prototype this in plastic sheets is important to me. I've found a bunch of sites that explain hobbing and that have formulas for pitch etc, but no sites that actually generate the splines for the gear teeth to turn into Gcode. Before I sit down with Mathematica and derive it from first principles, does anyone know of a good resource for this?

처리 내용

theory Some sites that I found useful in helping me understand why gear teeth are those funky involute curves, without getting bogged down in equations: Michal Zalewski. "Guerrilla guide to CNC machining, mold making, and resin casting". Section 6.2. Creating spur gears. 2012. RepRap: Gear design . practice I hear a lot of people take this ".scad" script: " Parametric Involute Bevel and Spur Gears ". They tweak the "number_of_teeth" and other parameters to their liking, and then use OpenSCAD to calculate all the involutes and other splines and show a solid model of that gear. Then they export a ".stl" sold model file and use RepSnapper or RepRapPro or Skeinforge or etc. to convert it to Gcode. There's some example Gcode in Reyes's paper "Algorithm to Describe the Ideal Spur Gear Profile" . A few people somehow use a spreadsheet to generate the Gcode -- Ferreira "Using Spreadsheets to Parameterize Spur Gear Design for Laser Cutters" and Joe Martin "Plain gear tooth calculator" . Has any